Norax
P‐4508
xon U.S.A, In
8 as of July 201
US
nc.
14
SERR GUUID
DE v
m
v3.
myoPRESSUR
.6
RE
i
Norax
P‐4508
© Copy
No partreadabl Noraxonmay be
xon U.S.A, In
8 as of July 201
yright, 2014, Norax
t of this documente form without th
n is a registered trtrademarks or reg
nc.
14
xon U.S.A. Inc.
may be copied, phe prior written co
rademark of Noraxgistered trademar
hotographed, repnsent of Noraxon
xon U.S.A. Inc. All ks of their respect
roduced, translateU.S.A. Inc.
rights reserved. Ative companies an
ed, or reduced to
ll other company nd are sole propert
m
any electronic me
and product namety of their respect
myoPRESSUR
edium or machine‐
es contained hereted owners.
RE
ii
‐
in
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 iii
Section 1: Introduction to the Technology Description 1
Section 2: Set‐Up Software Installation 2 Hardware Set‐Up 2
myoPRESSURE Device Configuration Settings 4
Section 3: Software Navigation Overview Main Navigation Bar 7 Main Operation and Instruction Bar 7 Tool Bar 8 Local Menu Element Controls 8
Section 4: Home Tab Introduction 9 Select a Module 9 Select or Create a Subject 10
Select or Create a Configuration 10 Right Side Tool Bar 10
Section 5: Create a New myoPRESSURE Measurement Configuration Introduction 11 Create or Edit a Measurement Configuration 12 Measurement Options 13
Section 6: Measure Menu Introduction 14 Preview Screen 14 Recording Measurements 15 Screen Layouts 15 Measure Menu Functions 19
Section 7: Database Menu Introduction 21 Right Tool Bar 23
View Records 28
Section 8: Viewer Menu Introduction 29
Signal Processing 33 Video Analysis and Video Options 33 Marker Menu 33 Edit Menu 34 Edit Channel Properties 40 Signal Bars 41
Section 9: Report Menu
Table of Contents
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 iv
Introduction 42 myoPRESSURE Reporting System 42 Gait and Running Analysis Report 47 Report Period Definition Step 47 Report Preview and Editing 56
Appendix A: Report Descriptions 64
Appendix B: Multi‐Device Configurations and Master Sync System 74
Appendix C: Master Sync and Connect Schemes for myoPRESSURE Treadmills 75
Appendix D: Master Sync and Connect Schemes for myoPRESSURE Insoles 77
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 As of July 2014 1
Description Noraxon‘s myoPRESSURE module operates with different pressure distribution devices:
The instrumented treadmill system – myoPRESSURE‐T
The portable insole system – myoPRESSURE‐S
The pressure plate – myoPRESSURE‐P (coming Q4 2013) The data acquisition and analysis using the different pressure devices is very similar, only some hardware setup and sync settings differ. myoPRESSURE presents the user with both 2‐D and 3‐D animated pressure prints of each detected foot step during both the recording and replay. In the report, the user is also given: the vertical ground reaction force curve of each foot, a comprehensive analysis of standard gait parameters, center point of pressure (COP) related analysis and associated averaged curves.
Section 1: Introduction to Technology
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 2
Software Installation
Before you start the MR3 software please connect all devices to your PC that you plan to use with the software. Insert the installation USB card or use the MR3 download file and start the installation with Noraxon.mr.3.x.x.exe (x is the latest version release number). Follow the steps in the Installation Wizard menu and click Finish to close the Installation Wizard routine. A new Icon will appear on your desk top:
Double click on the icon to start the MR3 software.
Hardware Setup At the very first program start, MR3 will operate an automatic hardware detection run by prompting this screen:
Make sure that all purchased devices are connected to the PC via USB and properly installed in the Windows operating system. Click OK to run the hardware detection. You can manually repeat this hardware detection and hardware setup routine at any time.
After starting the program click on (upper right corner) in the green command line to open the right side tool bar.
Section 2: Set‐Up
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 3
In the newly opened tool bar click on to open up the Hardware Device setup menu. The Hardware Setup menu will automatically insert any devices connected to the computer, including any webcams that may be part of the computer. Click on
if you would like to remove any inserted devices from your configuration. The Hardware Setup menu may also show some “Player” devices which are virtual demonstration drivers to simulate an EMG, myoMOTION or pressure plate recording
without connected hardware. Click on to remove it from your configuration.
Click to integrate the devices you plan to use with the MR3 modules. The next screen shows a list of all selectable devices or preconfigured devices. Please note that only connected devices (recognized by Windows operating system) will be listed here:
Select your auto‐detected pressure device, operate its device specific settings and click OK.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 4
If you plan to use myoPRESSURE together with other devices like 3D kinematic system (myoMOTION) or EMG (myoMUSCLE), the sync mode needs to be activated. Please refer to Appendix B, the hardware installation menu and the hardware manual for more details on “multi‐device” setups.
Note: To operate multi‐device setups Noraxon’s MyoSync device is strongly recommended. More information on the Master Sync concept can be found in Appendix B.
Confirm by pressing OK. This will bring the user back to the Hardware Setup menu. Review everything and press OK to return to the Home screen. Many MR3 interface functions are shared between editions and devices. Some major interface elements are introduced in the next chapter.
myoPRESSURE Device Configuration Settings Once the myoPRESSURE device has been selected and the OK button has been hit a Settings Menu will pop up. Different pressure systems will have different setups. Please see the hardware manual for your specific pressure system setup. Once the device settings are correct, the user should press OK. This will return the user to the Hardware Setup menu. Now, the Noraxon pressure system’s icon should be present. If there is ever a need to change the device settings, the settings box can be reached by highlighting the device and clicking the Configure Device button in the Hardware Setup menu.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 5
Hardware Profiles It is possible to save various hardware profiles. This allows the user to have specific hardware setups and device configurations saved. This is especially useful if myoMOTION is used and the user does not have a full body, 16 sensor system. The hardware profile allows the user to save different device configurations such as upper body, lower body, etc. To save a hardware profile first open the Hardware Setup as described above. The Hardware profile will automatically open in the Default profile. The default profile cannot be saved and will change as devices are inserted and deleted. Click on the New button in the upper right corner to create a new savable hardware profile, or click on the drop down arrow to select a previously saved hardware profile.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 6
Selecting the New button will open the New Profile dialogue box where the user can create a profile name to save the hardware profile. Selecting Clone Settings allows the user to copy the devices and device configurations currently in the Default hardware profile.
Norax
P‐4508
The On towork
The tbrighif nee
Main Indicathe ngreennext the oconti
Sec
Ope
xon U.S.A, In
8 as of July 201
Main Navi
op of the sof flow of a ty
tab/menu yot backgrouneded.
Note: Some.g. a recoprevious D
n Operatio
ated by a grenavigation ban. MR3 is delogical step operation bunue to the n
ction 3: S
ration butto
nc.
14
igation Ba
ftware screepical record
ou are currennd. This navig
me menus caord can onlyDatabase Ta
on and Inst
een color, thar. On the lesigned so thin the work tton to learnnext step.
Software
on
r
en there is a ing from the
ntly operatingation bar a
an only be ay be viewed ab.
truction Ba
his bar showft side of thihat by pressiflow. Pleasen which step
Navigatio
software nae Home scre
ng in is highlllows you to
ccessed from(Viewer Tab
ar
ws at the top is bar is the ng this buttoe read the shps or options
on Overv
Instruction
avigation baeen (start) to
lighted with o directly “ju
m the previob) if a record
of the softwmain operaton you autohort instructs are availab
view
nal text
m
r that visualo Report (an
an orange cump” into a c
ous one in wd was selecte
ware screen,tion button matically optional text toble or necess
myoPRESSUR
izes the alysis):
color and certain men
work flow, ed in the
, underneathin bright perate the o the right ofsary to
Help Bu
RE
7
u
h
f
utton
Norax
P‐4508
Tool
MR3 speciBar (lor Sh The qpop‐uthe so
Loca
Each contropera
xon U.S.A, In
8 as of July 201
l Bar
offers a set fic options olocated on thow Tools bu
question maup dialogue oftware.
al Menu Ele
menu consirol tools. Youations:
nc.
14
of optional tor apply optihe right sideutton on the
rk “?” to thebox will app
ement Con
sts of a set ou can use th
tools to adjuional procese of the scree right side o
e left of the tpear with inf
ntrols
of menu elemese local too
ust or fine tussing steps toen) can be oof the green
tool bar is thformation ab
ments, whicols to perfor
une certain so your recoropened or clinstruction b
he Help buttbout the cur
ch are equipprm element s
m
selections, ords. At any tosed with thbar.
ton. When prrently displa
ped with a sspecific sele
myoPRESSUR
operate mentime the Toohe Hide Too
pressing this ayed page of
set of local ections and
RE
8
nu ol ls
a f
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 9
Introduction The Home screen menu consists of 3 sub steps that allow you to select a measurement module (in this case myoPRESSURE), and select or create a subject and measurement configuration. To do this, simply perform steps 1 through 3 on the Home screen:
Select a Module MR3 is multi‐functional software that can operate numerous sensors and devices. Each of these can function as a stand‐alone device or module or be used in combination with each other. Step 1 allows you to select the module you would like to use for the measurement. Modules include; myoMUSCLE for EMG recording, myoMOTION for 3D motion analysis, myoPRESSURE for integrated foot pressure analysis and myoVIDEO for 2D motion capture. Modules become available once they are purchased and unlocked by the user.
Section 4: Home Menu
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 10
For this section select myoPRESSURE as the measurement module.
Select or Create a Subject Each record will be saved under the subject. There are an unlimited number of subjects that may be saved to the MR3 database. Subjects may be selected from the drop down menu in step 2. Next to the drop down menu is also the button to create a new subject.
Note: Subjects are saved under Projects. Projects can only be changed or selected under the Database menu.
Select or Create a Configuration Next the user will select, edit, or create a new configuration. Please see the next section for details on Measurement Configurations.
Right Side Tool Bar Each tab will have different tools available in the tool bar. For the Home tab, the tools are described below.
Actions Setup – This takes the user into the hardware setup. The hardware setup screen is described in the hardware manual. Update License – Allows the user to update their software in case they purchase additional modules or features.
Configurations Rename – Allows the user to rename the highlighted software configuration. Delete – This will delete the highlighted configuration.
Norax
P‐4508
Intro
1) Cli
2) Sesubje
3) Se
Clicki
4) Cliconfi
Sec
1
xon U.S.A, In
8 as of July 201
oduction
ck on the m
lect an existect list) or cr
lect an exist
Note: Clicmenu. Neunder a u
ing Edit Conf
ck on the grguration hav
ction 5: Cr
4
nc.
14
yoPRESSURE
ing subject feate a New
ing configur
cking New Coew measuremuser defined
figurations a
een ve been cho
reate a Ne
E module ico
from the datSubject.
ration or clic
onfigurationment configfile name an
allows alrea
buttsen.
ew myoPR
2
on
tabase list (u
k Edit Config
n will bring uurations arend will be lis
dy existing c
ton once the
RESSURE
use small pu
guration or
users to the e stored undsted under th
configuratio
e correct mo
Configura
3
m
ull‐down arro
New Config
measuremeer the seleche configura
ns to be mo
odule, subjec
ation
myoPRESSUR
1
ow to see fu
guration.
ent setup ted module ation menu.
dified.
ct, and
RE
11
ll
Norax
P‐4508
Crea
Aftername
Enter
The m
All mdialogdevicdone
xon U.S.A, In
8 as of July 201
ate or Edit
r clicking Newe for the new
r any suitabl
measuremen
easurementg menu are ce icon and m, the myoPR
nc.
14
a Measure
w Configuraw measurem
e file name
nt setup scre
t/recording dlisted on themouse drag RESSURE sett
ement Con
ation a smallment configu
and confirm
een will appe
devices thate right hand it to the sectings screen
nfiguration
dialog will aration:
m it with Ok.
ear:
t were insertside of the stion 1. Devic will appear
n
appear prom
ted in the inscreen. Clickces in your c:
m
mpting you t
itial Hardwak on the myoconfiguratio
1
myoPRESSUR
1
o enter a
are Setup oPRESSURE on. When
RE
12
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 13
MyoPressure‐S (Medilogic) has no other setup requirements.
MyoPressure‐T (Instrumented Treadmill) allows you to select between:
Gait mode for bilateral gait and running analysis on instrumented treadmills
Stance mode for Bilateral Stance analysis on instrumented treadmills and floor plates
You are now ready to continue to the measurement screen.
Note: If MyoPressure‐T treadmill/platform is being used make sure the plate is unloaded (nothing/ no one standing on it) and ready for an initial calibration that will occur immediately after the Start Measure button is pressed.
If Medilogic insoles are used, this unloading is not needed and subjects may be standing on the insoles at the beginning of the measurement.
Measurement Options
In the right side tool bar are the Measurement Options including: Recording Options, Feedback Options, and Online Processing. These options are meant for use with myoMOTION and myoMUSCLE but do not apply to myoPRESSURE.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 14
Introduction
After selecting an existing configuration or creating a new configuration continue to the measurement screen by clicking the Start Measure button in the green operation line:
Note: Immediately after clicking this button, a short treadmill plate calibration is performed where users should be OFF the treadmill, but this calibration is not needed for the Medilogic insoles.
Preview Screen
The system is now ready to take measurements; the incoming pressure data will be visualized on the screen by a 3‐D isobar graph:
This view of visual animation can be changed using the various mouse buttons. The animation can be rotated by clicking and holding the left or right mouse button. The mouse wheel zooms in and out on the 3D visualization, and if you press and hold the mouse wheel button you can move the animation up and down, left and right within the video animation screen.
Section 6: Measure Menu
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 15
Recording Measurements The system is now ready to take measurements. Any movement made by the test subject will be animated by the 3‐D isobar graphs in real time.
To start a recording press Record, perform the desired activity and press Stop:
The Save Data dialog will appear and a Name can be entered in first line:
The second line Subjects allows the user to change, create or confirm the previously selected subject name. After pressing Ok the record can be reviewed in the record Viewer. To perform the next measurement with the same subject just click the Measure tab in the top navigation bar again. Make sure that the pressure platform is unloaded at the start of each Measure.
Screen Layouts
If the only device in the configuration is the myoRESSURE device, the 3‐D isobar graph will be the only thing visible during the measurement. In the case of multi‐device setups, e.g. myoPRESSURE with myoMUSCLE (EMG and mobile sensor recording), myoVIDEO (2 camera video recording) or myoMOTION (3D motion analysis of angles) it may be helpful to use the customizable screen layout system of the Measure menu. Generally, each device will have its own specific register tab:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 16
In the above example, pressure data are shown in the Video/Animation tab while EMG from the myoMUSCLE Module is shown in the EMG Device tab:
This separation is helpful to manage the many signal windows created by the use of full body or multi‐device measurements (e.g. 16 EMG channels are added). Any signal from any signal tab section can be clicked and dragged into the new user view tab labeled with +. For example, the signals from a specific muscle can be moved into a new user tab. Once a signal is present, the New User View tab will automatically be renamed Tab 1. Right click using the mouse allows the user to rename the view. A Rename card dialog box will appear:
This screen layout system allows the user to create as many signal selections or new user views as needed. A similar system is available for the Video/Animation window:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 17
Double clicking on a given signal name moves this signal into a pop‐up window:
The small red X button in the upper right corner of the window title line will close the pop‐up window and move back the signal to its original tab location. If you hold the CTRL key and click on a second channel title from the source tab you can insert more channels to the pop‐up window:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 18
If you click on the channel name and drag it over another channel, they are shown in an overlay mode:
This and other pop‐up Signal/Animation windows can be moved to a second monitor, if one is available. Whenever a certain screen/window layout arrangement is established you can Save it in the Screen Layouts section of the right tool bar. Click on Save and enter a suitable name for your channel layout configuration and it will appear in the upper list section:
In case you want to use a user defined layout double click on its name in this selection list.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 19
Other default options in Screen Layouts are these buttons: All in one tab – all signals from one tab will be shown (again) on one shared screen Show by group – each device and signal category is shown in separated tabs (this is the default) Delete – will delete a screen layout configuration from the selection box
Note: The channel layout which was setup in the Measurement menu will be the same in the Viewer menu. However, all layout and channel arrangement functions are still available in the Viewer menu as well.
Measure Menu Functions
Local Amplitude Zoom Function
During measurement and recording the given amplitude (Y‐axis) scaling can be changed by using the local red zoom plus/minus buttons:
The timeline (X‐axis) also has local scaling options. The plus and minus will increase or decrease the length of time displayed in the signals window while the equal sign returns the window to a 10 second time display.
Actions Tool Bar The right tool bar of the Measurement menu includes a section titled Actions. This tool section is only meant to be used for myoMOTION and myoMUSCLE signal screens and is not active (or needed) for pressure distribution animation in myoPRESSURE or video analysis in myoVIDEO.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 20
Measurement Setup – directly goes back to measurement setup/configuration screen. Please see below for more details about this setup and options.
Calibrate Baselines – this option is only needed if EMG and other biomechanical sensors from the Telemyo G2 or DTS system are included in the recording. For such signals it may be required to correct zero line offset shifts via recalibration Record – same function as the green Record button on top left position
Marker Menu
With this menu you can create marker names and manually mark or comment events in
your recording. Once recording has started, clicking the button, under the Markers tool bar, will place a marker in the record (displayed in the Viewer menu) as well as provide an audio cue. The default marker name is Marker. If you want to create a new marker name, double click on the Marker name entry box and overwrite the existing one, click the green check mark button, and this new marker name will be inserted to the list of available marker labels:
To use a marker name from the list double click on it (don’t use the green check mark button). A successfully placed marker is indicated by a short tone. To delete a marker from the marker label list, click on the red X right side to each marker name.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 21
Introduction
As indicated by its name the Database tab manages all functions around data file management, like selection, editing, exporting and importing.
1) Lists Project’s Subjects 2) Lists Subject’s Records 3) Local List Functions 4) Right Tool Bar Menu 1 & 2 – List sections The screen is split into two sections, reflecting the organization of records into Subjects (left list section) and Records (right list section) stored under a given subject name: 3 – Local List Functions Below each list you find a set of list functions:
Section 7: Database Menu
1 2
3 3
4
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 22
Edit/Rename Here you can change the subject name and add additional information associated to your subject such as subject properties, comments or pictures.
Delete Here you can delete your subject and all records stored under this subject Note: deleted subject data and records cannot be restored.
Quick Search If you have a very large database it may be helpful to use a search function to quickly find a certain subject
Sort This entry allows you to sort your database by first or last name in ascending or descending order
Info If this button is pressed/box is checked, the subject properties window with Basic info, Subject form, Comments and associated pictures is permanently visible
The same set of list functions is available for the records list screen as well. The record
Info button shows important record property details:
Basic A summary of basic record properties like file name (editable), size, date, duration etc.
Muscles/Devices Only for EMG and sensor records, shows a list of selected sensors
Comments Each record can receive a record specific comment which can be created or reviewed here
Picture/Video This info tab is very helpful if you have recorded data together with video. The first picture of the video is shown here to help you find and identify a record
Meas. Options Not activated yet
Processing History In case any signal processing was applied to your original record, all processing steps are documented here
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 23
4 ‐ Right Tool Bar Menu
If you click the button on the right side of the green instruction bar, the
Database Tool bar will show up. To remove the tool bar, click . Besides the Subjects Database there is another database section called Normative Database
It contains all normative data records that were compiled via the “Add to Normative” function within the Report Menu (see chapter 9: Report Menu). All database functions described below are also available for normative records.
Note: The normative sample file “Natural floor gait reference curve” is not meant to be used for any medical diagnosis or similar purposes. It only serves as an educational example on how to use or operate normative data.
Right Tool Bar
Projects and Data Hierarchy MR3’s database system is organized in hierarchy levels:
Projects
Subjects
Records
Project is the highest database level. Projects can include an unlimited number of Subjects, which can include an unlimited number of records.
Norax
P‐4508
The dprojeclick
Choo
In thesubje
Att
xon U.S.A, In
8 as of July 201
drop down aect. If you waon More.
New – creEdit – renDelete – d
ose actions
e Choose actects and reco
tention: Care
nc.
14
arrow to the ant to create
eates a new names a projdeletes all p
tions sectionords.
fully use the
right of the e a new proj
project ject roject data,
n you can cr
Delete functi
project namect, or rena
subjects and
reate a New
on. Projects t
me allows yome or delete
d records wi
Subject and
that are delet
m
ou to switch e an existing
ithin a proje
d Import or E
ted cannot be
myoPRESSUR
2
to another g project,
ect
Export
e restored
RE
24
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 25
Import Records
You can import myoPRESSURE records from external locations such as a previous version on your PC, backup data from external hard drives or network folders:
To import myoPRESSURE or multi‐device records select Import, then
and set a path to the external directory (e.g. a net drive or external hard disk directory).
Other import options include:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 26
Import from external location
Import entire MR3 projects, subjects or records saved to an external location Note: It is possible to import into the directory the records were originally saved in, or into the currently opened project
Import video file Externally recorded video files in avi format can be imported
Import MRXP data Import of records from the former MyoResearch XP version
Import record from text file
Imports Ascii or txt formatted records. Attention, only MR3s ascii data or similar arrangements are supported (see export file to ascii)
Import of C3D file C3D format used by most Motion capture companies is supported and allows for import of kinematic, force and EMG data recorded there
Import record from Noraxon Datalogger (*.tm2)
Data logged files from the Telemyo G2 and Telemyo DTS belt receiver can be imported here
Import Zebris16 Data Imports pressure data recorded with Zebris old 16Bit systems (FDM, FDMT)
Import MyoPressure data
Data recorded with the myoPRESSURE Software from Zebris can be imported here
Import record from MyoMotion Datalogger (*.mml)
Imports data recorded with myoMOTION inertial sensor data logger
Export Records You can export myoPRESSURE records to external locations, the records of another subject, to a text file, and to an excel file:
Norax
P‐4508
The f
Just uin the
Exporexter
Exporanoth
Exporanoth
Exporfile
Expor
ExporExcel
Exporforma
Atttheundat
xon U.S.A, In
8 as of July 201
following me
use the chece list and clic
rt subjects tonal location
rt records to her subject
rt records to her project
rt record to te
rt to C3D form
rt record to (.slk) file
rt to MatLab at
tention: Do Neir data directreadable. To tabase/right t
nc.
14
enu dialog al
ck or unchecck .
Exportsoutside
Allows your m
Allows directo
ext Numer
mat Numer
Numer
Numer
NOT use the Wtory on hard copy data alwtool bar!
llows you to
k controls to
s your chosene of MR3
you to copy amyoPRESSURE
you to copy aory to anothe
rical Data (sig
rical Data (sig
rical Data (sig
rical Data (sig
Windows Expldisk: you willways use the
select proje
o select the
n subject from
a record fromE version
a subject(s) ar inside your
nals) can be e
nals) can be e
nals) can be e
nals) can be e
lorer to movelose importaExport/to ext
ects, subject
desired subj
m myoPRESSU
m one subject
and/or recordmyoPRESSUR
exported to a
exported to C
exported to e
exported to M
e or send MR3ant index filesternal locatio
m
ts and record
jects and rec
URE to anoth
t directory to
d(s) from one RE version
ascii compatib
C3D format
excel compati
Matlab forma
3 data files dis and data maon function of
myoPRESSUR
2
ds:
cords shown
er location
another insid
project
ble format
ible format
at
irectly from ay become f the
RE
27
n
de
Norax
P‐4508
View To vie
click tab.
Dual MR3 view
the
Notesimul The resynch
xon U.S.A, In
8 as of July 201
w Records
ew a record
on the recor
Record Co
gives the ustwo records
: Both recorltaneously in
ecords will thhronized and v
2
nc.
14
from the da
rd or click on
omparison
ser the optios in the View
button.
rds must be fn the Viewer
hen appear in viewed at the
atabase, sim
n the
on to view twwer screen at
from the samr menu.
the Viewer me same time.
1
ply click on t
butt
wo records st the same t
me project a
menu side by
the record t
ton to open t
simultaneoutime, highlig
and subject i
side. Here, t
m
to highlight i
the record i
sly in the Vieht both reco
in order to b
the records m
myoPRESSUR
2
t and double
n the Viewe
ewer tab. Toords and hit
be viewed
may be
RE
28
e
r
o
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 29
Introduction
Each successfully stored recording will automatically be loaded to the record Viewer. Data will be presented in the same channel layout scheme that was used for recording. The main goal of the Viewer menu is to inspect the quality and details of a record, apply signal processing, place markers (for analysis period definition) and prepare the record for further analysis (=> Report). As an overview the following menu elements are available:
1. Channels and view functions 2. Time line 3. Playback controls 4. Tool bar menus
Note: MR3 automatically calculates the resulting ground reaction force curve from the pressure data for the left and right sides. They are shown as a signal to the left of the pressure animation screen. With multi‐device setups the record Viewer can show signals from all measured devices plus video, pressure and motion animation avatars. The addition of multi‐device modules also adds functions to the right side tool bar, e.g. myoVIDEO based video recording adds two more sub menus; Video analysis and Video Options.
Section 8: Viewer Menu
1
23
4
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 30
1) Channel View and Functions The Viewer menu presents all recorded data exactly in the same screen layout arrangements as they were measured. Because of the multi‐device nature of MR3, numerous signal, animation video and biofeedback screens can occur which require a sophisticated screen element management. As described in the measurement menu/section screen layouts, in the case of multi‐device setups each device will be shown in its own tab section. The following channel display, zoom and overlay functions are available:
Local X and Y axis +/‐ buttons allow for zooming operations of amplitude and time
Double click on channel name maximizes a channel to a pop‐up window
CTRL – Double click adds a second or third (….) channel to the pop‐up window
Pop‐Up windows can be moved to a second monitor
Left mouse drag of the channel name to another signal creates an overlay of both signals
Any amount of signals can be mouse dragged to a new tab
Any given screen layout arrangement can be stored as a configuration available in the right tool bar
(See the Measurement chapter for more detailed descriptions and examples)
2) Time Line The time line indicates the cursor and marker time positions, marker labels and the location of the analysis periods (see the Report chapter for details).
3) Video/Avatar Play/Replay Controls
Play Plays all visible videos on the screen at the same time
1x Plus and minus signs control the play speed, 1x means the original speed, + increases, ‐ decreases the play speed
Arrows Their function follows standard video control functions: Go to the beginning of the video clip, go one picture back, one picture forward or go to the end of the video clip
Play to Video File This is MR3s video/screen recorder function and allows you to record any video, screen animation, time synchronized measurement signals, etc. (e.g. EMG, auto‐tracked angles) to an .avi file. A small menu dialog allows you to define file destination directory, video size, frame rate and compression factor:
Norax
P‐4508
RecoTo serecorthe ininterv
AT
xon U.S.A, In
8 as of July 201
rding intervaelect a sectiording intervanterval. You val and drag
TTENTION: D
nc.
14
als can be limon within theal, then holdcan also accgging over th
o not opera
mited to a be video time down the scomplish thishe timeline u
te any other
lue highlight line, click ohift key and s by clicking until the end
r action whil
ted area in tn the beginn click a seco on the begid of the desir
le the screen
m
the time linening of the dnd time at tinning of thered recordin
n recorder is
myoPRESSUR
3
e (see belowdesired he end of e desired ng interval.
s running!
RE
31
w).
Norax
P‐4508
Add t
4) Ri The tis themenu
SAd V
xon U.S.A, In
8 as of July 201
to Report
ght Tool Ba
tool bar offee standard mu to activate
ignal ProcesA collection oigital filterin
Video Analys
nc.
14
Wheneangle dintereany poReporthe mya Repo
ar Options
rs a set of opmode to visuae it and use m
ssing (optionof standard png, amplitude
sis (requires
ever you wadrawings) tost (POI) baseoint of interet to mark it yoVIDEO moort marker la
The timmarkermarkermanuallabelingcan be interest
ptional sub mally inspect, more sub me
nal) processing oe normalizat
the module
Repo
ant to insert o the report,ed analysis aest, analyze for the videoodule). Any Pabel in the m
me line showr label line. Mrs related to l marker labg. Any createused to identing analysis
menus, by dzoom and renu function
operations liktion, etc.
e myoVIDEO
ort Marker Li
a video pict, press this ballows you toit (see belowo analysis rePOI created marker/time
ws a seconds‐MR3 operatebiomechanieling or POI ed marker lintify events,s sections, et
default the Precord. Click ns.
ke signal rec
O)
ine
m
ture (with orbutton. This o watch a viw) and click eport (only aby this func line shown
‐based time es a complexical event trbased (“Addne is shown motion phatc.
Play mode is on the desi
ctification, sm
myoPRESSUR
3
r without point of deo, stop atAdd to available wittion receivebelow.
scale and a x system of iggering, d to report” here and ases,
active. This red sub
moothing,
RE
32
t
h s
)
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 33
Video Options (optional) Consists of a set of video adjustment tools Marker Menu (optional) Several modes for marker labeling and auto marker settings for trigger and angle channels. Note: Markers can be manually set in the signals by double clicking the left mouse button.
Signal Processing
Typically not needed for Pressure distribution recordings! The signal processing menu is nearly identical to the Online processing menu of the measurement menu. It has some additional processing options, but the main operation of functions is similar. Signal processing is a collection of commonly used processing modes for biomedical signals. These processing options are most commonly applied to raw EMG signals.
Video Analysis and Video Options (optional) These options are only displayed if you have purchased the myoVIDEO module and recorded a video. A more comprehensive description of functions is given in the myoVIDEO Manual or online help function.
Marker Menu Typically not needed for Pressure distribution recordings!
The marker menu manages all operations to place labeled markers in your recording. The main purpose of markers is to define analysis periods for reports. Markers can be placed by three major actions:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 34
in real time, by pressing the Mark button while recording
in the Record Viewer by double clicking a signal portion (left mouse button)
by using the auto‐marker algorithms presented in this menu The markers and periods system is needed to fulfill the complex task of analyzing selected signal portions, TTL triggered periods, timing related onsets, or sub phases in gait analysis, just to name some examples. MR3 offers four auto marker methods to place markers in a record:
Manual/Mouse
Steps
Min/Max by trigger channel
Rise/Fall by trigger channel
Edit Menu
Unlike Signal Processing, all Edit operations physically change the record data set and the original recording cannot be restored. Therefore, it is generally recommended to first make a backup or a copy of your data. Alternatively, save any changes done in Edit mode with the option Save as...., which allows you to create a new record file (including all your edit changes) while keeping the source record in its original status.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 35
At the top of the Channel Tools box there are 3 iconized View Modes of the signals:
Raw – show the original unprocessed signal (signal processing is removed)
Processed – show the signal only in its processed version (signal processing included)
Both – show an overlay of both raw and processed
Depending on the selection done here, any channel tool operation refers to this selection. For example, to copy a raw channel to clipboard and paste it to another location the Raw signals mode must be used.
New channel(s) This function allows you to create new channel lines at any location in your record.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 36
Place After – can be used to define a certain location for the insertion in the channel order. Name – edits the name of the channels. Color – loads a color palette to define a trace color for this channel. Channel type – offers a pull down list of all available channel types to be selected for the new channel. Raw Signal –organizes the amplitude scaling settings for the new channel.
Units – define the physical channel unit. # of digits – is the decimal value when showing the actual amplitude value. Bottom value/ Top value – the lowest (Bottom) and highest (Top) amplitude scaling value for the Y‐axis.
Delete, Copy and Paste Channels
All three options have the same functionality. The selection for the given operation is done via the Select By section of this sub menu. By default all recorded channels are selected if there is no Select By method chosen.
To select a channel for the given Edit operation you can use these selection modes: Select by:
Channel type select channels by type, e.g. EMG, force, etc.
By body side select left or right side labeled channels Channel number: select by the channel list number
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 37
Note: All 3 modes can be combined with each other.
Delete – physically erases a channel
Note: after the confirmation, which appears when leaving the record viewer menu, this channel cannot be restored!
Copy channels – copies the selected channel data to the clipboard Paste values – fills channel data coming from the clipboard to the selected target channel
Paste channels – pastes channels copied to the clipboard below the last channel
Fill Channels
The Fill Channel function is an editor for amplitude values. Based on a mouse mark signal portion, any amplitude value can be entered and will overwrite the existing values. For example, this function can be used to manually eliminate artifact spikes or other invalid data portions within a channel.
Norax
P‐4508
Offse This e
Reca This f
xon U.S.A, In
8 as of July 201
Note: thisup your fi
et Values
edit function
alibrate Cha
function cor
nc.
14
s operation wiles to preve
n is designed
annels
rects EMG b
will physicalent the loss o
d for manual
baseline shift
ly change thof raw data.
l correction
t and is not a
he data of yo
of the basel
applicable to
m
our source si
ine to any d
o myoPRESS
myoPRESSUR
3
ignal so back
esired value
SURE.
RE
38
k
e:
Norax
P‐4508
Scale
This fany f
For eor sca
Reve
Any eoriginEdit/V
xon U.S.A, In
8 as of July 201
e Channel(s
function alloactor:
xample: Thisale it down t
ert changes
edit operational as long aViewer Men
nc.
14
s)
ows you to m
s function cato lower valu
s
on done thuss the recordnu:
multiply the s
an be used tues.
s far on the d is not confi
selected am
to mathemat
currently loarmed to be
plitude data
tically "amp
aded recordchanged wh
m
a of a given c
lify" (scale) t
d can be revehen leaving t
myoPRESSUR
3
channel by
the signal up
erted to the the
RE
39
p
Norax
P‐4508
Edit
This m
Placeto re‐NameColorChannew cRaw selec
U# Bth
xon U.S.A, In
8 as of July 201
Channel P
menu can be
e after can b‐order channe changes thr loads a colonnel type offchannel. Signal / Proted channel
Units definesof digits is tottom valuehe Y‐axis.
nc.
14
Properties
e started by
e used to mnels. he current chor palette tofers a pull do
cessed Signa. s the physicathe decimal e is the lowe
right clickin
ove a select
hannel nameo define tracown list of al
al section or
al channel unvalue when est and Top v
g on channe
ted channel
e and side ince colors for ll available c
rganizes the
nit. showing thevalue is the
el name in th
after anothe
ndicator. this channechannel type
amplitude s
e actual amphighest amp
m
he signal scr
er one. Use t
el. es to be selec
scaling settin
plitude valueplitude scalin
myoPRESSUR
4
eens:
this function
cted for the
ngs for the
e. ng value for
RE
40
n
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 as of July 2014 41
Signal Bars
This button adds a new screen window showing the amplitude data at the cursor position as a bar graph:
Show channels with unit < > – allows the user to select what type of signal/channel will be displayed as a bar graph Smoothing – the value entered here defines a smoothing interval based on the mean value of this selected interval
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 As of July 2014 42
Introduction
Whenever the myoPRESSURE insole or pressure plate/instrumented treadmill system are used in recording it is recommended that users analyze the data (typically standing, walking or running activities) with myoPRESSURE’s Bilateral Gait Report or Stance Analysis Report. The Bilateral Gait Report is configured so that the resulting ground reaction force curves are used to determine the “heel strike” and “toe off” of each foot which are used to define the gait cycle. The Stance Analysis Report is designed to analyze the pressure distribution of two feet standing side‐by‐side. Reports can only be started if a recording was taken in Measure and followed immediately by selecting a Report, or a report was selected in Database and loaded to the Viewer menu (see work flow from left to right in the main navigation bar). Staying in the Viewer menu, click on the Report button in the top navigation bar or green Report button in the main action bar:
myoPRESSURE Reporting System
All myoPRESSURE gait recordings can be analyzed with a standardized default report called MyoPressure Bilateral Gait report; it does not matter if the recording was treadmill/platform based or insole based. Simultaneously recorded data from other modules, like EMG channels (myoMUSCLE module) or 3D angles (myoMOTION module) are automatically included in the analysis. There are numerous possibilities to edit, modify or even create self‐defined new reports. Stance records can be analyzed with the MyoPressure Stance/Balance Report. When done, the Select Report menu is opened. Dependent on the amount of installed modules, a selection of ready to go analysis reports are displayed.
Section 9: Report Menu
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 43
1. Report selection organized in module tab system 2. Channel selection section 3. Report info section with report preview 4. Report Options
1) Report Selection Reports are sorted in four major tab sections. The accessibility of these tabs is dependent upon the equipment and modules installed.
MyoMuscle (Application, Clinical, Standard) – for all myoMUSCLE EMG and sensor records
MyoMotion – for all myoMOTION based 3D kinematic records
MyoPressure – for all pressure related records
MyoVideo – for myoVIDEO 1 and 2 video camera records The list of available default reports may grow with new program updates.
2) Channel Selection By default all channels of a given record are selected for the report analysis and listed in the section Selected channels:
1
2
3
4
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 44
If analysis should be restricted to certain channels, three filter options are offered:
Channel type e.g. select all EMG, force or angle channels
By body side select left or right side labeled channels
Channel number: select by the channel list number
3) Report Info with Report Preview Here you can find a short description of the selected report addressing its main purpose, the way analysis periods are defined (Period Definition), analysis elements and typical signal processing steps (if needed, e.g. EMG).
The right side shows a static picture to preview the typical contents of the selected report
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 45
4) Report Options
New Specialists can create their own reports by selecting a report class and manually choosing analysis, layout and info elements. A description of this Report Generator module is given in an additional document. Edit – Basic Settings If needed a report’s title, tab sections, description text and preview window can be changed with this edit menu:
Edit – Report Class The report class editor is meant to be used for experienced report designers only. Reports can vary in complexity in terms of periods and phase definition. For example, some reports do not require any period or phase definition because usually the whole record or a mouse marked area is analyzed (e.g. Clinical coordination report or Spectrum report). Other reports, like Unilateral Gait in the MyoMuscle Application Reports, need a foot switch triggered period definition with 2 phases (stance and swing phase) to properly analyze the gait cycle. Even more complex are the Bilateral gait setups which add more sub phases to the gait cycle. The current MR3 version offers six levels of complexity to manage these differing tasks:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 46
Selection / Whole record – The whole record or the mouse marked area will be analyzed. Point of Interest – Only single points of interest, marked with the button Add to Report in Viewer menu, will be included in the report (designed for Video Analysis). One‐phase periods – A sequence of markers or event based (defined by trigger channels) periods without additional sub phases will be analyzed. Two‐phase periods – A sequence of periods with two sub phases will be analyzed (e.g. extension/flexion, stance/swing phase, etc.). You can freely name the first and second phase (default names are Pre and Post event). Bilateral analysis – This class is mainly designed for left to right comparison analysis in bilateral gait measurements and splits the period definition into left and right side periods. Bilateral Gait analysis – A sub version of Bilateral analysis and needed for myoPRESSURE recordings.
Delete This function will delete a report without a possibility of restoring it. Carefully use this option and consider first making a backup to an external location using the Export function.
Norax
P‐4508
Expo
Here drivecontalocat OK This oconti The rsectio
Gait By deMyoP
Doub
Repo Beforopera
xon U.S.A, In
8 Rev C (April 2
rt/Import
you can exps, network dainer directoion where th
operates thenue.
relevant repoon 1.
and Runn
efault, myoPPressure Bila
ble click on it
ort Period
re the reporated via the
nc.
2014)
port or impodirectories, eory called Nohis directory
e selected re
ort for press
ning Analys
PRESSURE gaateral Gait R
t or press OK
Definition
t is shown MViewer Men
ort reports fretc. An expooraxon MR3y is located.
eport; once t
sure recordin
sis Report
ait and runniReport prese
K to continue
n Step
MR3 stops atnu:
rom externaorted report data. To im
the correct r
ngs are listed
ng recordingented in the
e with the n
t the Period
l locations, sis automatic
mport reports
report has b
d in the tab
gs are analye report tab s
ext step.
Definition (
m
such as: othecally stored s set a path
een selected
MyoPressur
zed with thesection Myo
for analysis
myoPRESSUR
4
er HDD in a to the
d press OK t
re Report of
e oPressure:
periods)
RE
47
o
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 48
Period Definition for Treadmill or Floor plate data For treadmill/pressure plate recordings the period definition routine automatically identifies the gait events and visualizes them with red (left side) or green (right side) bars just below the force curve signals:
The dark shades indicate the subject is in stance phase, while the lighter color indicates swing phase. Using the mouse, if you highlight a signal area (in light blue) on the force traces screen, only the steps inside this selection will be analyzed:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 49
When all the analysis periods have been set correctly, click on to start the report:
Period Definition for Insole data The period definition (step detection for gait/running activities) is operated in 2 steps:
First the left side gait events, heel strike and toe off, are automatically detected by using the period definition mode Rise/Fall by trigger channel and Rise to rise with event. The algorithm is automatically looking for the left side force curve and identifies the rise and fall of the force curve from zero, up, and back to zero. The rise occurs during the heel strike and beginning of stand phase while the fall consists of the end of stance phase and beginning of swing phase. Click on Set to use this algorithm for period definition:
Norax
P‐4508
The sbar bstep a The pclicki
When
Perio For strecorof the
xon U.S.A, In
8 Rev C (April 2
sequence of below the forand draggin
process is dong on Next i
n done with
od Definitio
tance analysrd. If users de record is to
nc.
2014)
stance (darkrce curves. Ug it down to
one one footin the green
the period d
on for Stanc
sis the perioo not want to be analyze
k red) and swUsers can uso any menu s
t at a time. R main action
definition cli
ce Analysis
d definition to analyze thed by highlig
wing phasesse the mousescreen sectio
Repeat the an bar:
ick Next to e
s
routine autohe entire recghting the ar
s (light red) ae to removeon below the
above step fo
enter the rep
omatically acord, they carea they wou
m
are shown ine steps by clie period bar
or the right s
port.
analyzes the an determinuld like to an
myoPRESSUR
5
n the period cking on ther line.
side by
entire ne which parnalyze.
RE
50
e
rt
Norax
P‐4508
Adju AdvaChan
Notebecauassigchang A comalternfunct
xon U.S.A, In
8 Rev C (April 2
st period d
nced users cnge period d
: The stanceuse by their ned to the mged.
mprehensivenative periotions within
nc.
2014)
definition fo
can fine tuneefinition in t
e analysis doreport class
mode “Select
e period defid definition this menu is
or analysis
e or modify the right sid
es not have s, defined in tion/Whole
inition menumodes and s given in the
periods (Op
the period de tool bar:
the option treport selecrecord”. On
u is presentesubmodes. Ae addendum
ptional)
definition se
to change thction/propernly the mous
ed that allowA descriptio
m section.
m
ttings by clic
he period derties menu, tse marked ar
ws for the seon of all avail
myoPRESSUR
5
cking on
efinition they are rea can be
election of lable
RE
51
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 52
Note: It is recommend choosing the basic settings pre‐configured for this report and only entering the period definition tool bar menu if experiencing problems, such as noisy signals. A wrongly selected and operated period definition will result in an inaccurate analysis of the default MyoPressure report. MR3 supports 4 major period definition methods
By Markers This is the default mode for most reports. Markers are set by left mouse double click or by using the Marker Menu in the Viewer menu. The default name for these is Marker, but the marker menu allows you to create other marker names. Individual marker names can be used with the second method By markers labels. If the report class is a One Phase (e.g. Standard Amplitude) or Two Phase (e.g. Average Activation) report, a set of sub modes are presented in the vertical sub mode column: One phase reports: Two phase reports:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 53
The result of any auto period definition routine is visualized by horizontal periods bar just below the signal screen: One phase reports: Two phase reports:
Selected sub mode: ‐ Every other interval ‐ Every interval with event Check if one of the offered sub modes is more suitable to your task and select it by confirming OK. Pressing the Preview button allows the user to see the periods in the signal window before selecting OK.
By Marker Labels Markers can freely be named by any label (see Viewer, Marker Menu). If special marker names were used in record viewer or in imported files (C3D gait event markers) the period definition can specifically use these marker labels for period definition. For example, all “Heel strike” markers can be used for the beginning of a 2 phase cycle (step), and all “Toe” markers as “event marker”.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 54
Choose the marker type in the pull down list Marker name Offsets from markers will add a pre‐marker period, a setting that is helpful for event markers in jump testing (pre‐activation period before hitting the ground). Skip one marker is needed in case there are desired interruptions within un‐interrupted motion cycles (e.g. gait).
Min/Max by trigger channel This period definition type is designed for angle curves and similar signals that should be used as a motion trigger signal. It detects local Min and Max values in the selected trigger channel. If the report class is a One Phase (e.g. Standard Amplitude) or Two Phase (e.g. Average Activation) report, a set of sub modes are presented in the vertical sub mode column: One phase reports: Two phase reports:
Channel – select the trigger channel to be used for the auto‐period detection Threshold – regular angle signals can be analyzed by the Auto mode. In special cases it may be required to select a Manual mode. Here you need to enter a suitable value that defines the minimum range that has to be found between Max and Min angle value to accept it as a local event.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 55
Check if one of the offered sub modes is more suitable to your task and select it by confirming OK.
Rise/Fall by trigger channel The Rise/Fall auto detection is designed for classical TTL styled signals and foot switch on/off signals with a sharp rising edge going to high TTL and sharp falling edge going back to low. If the report class is a One Phase (e.g. Standard Amplitude) or Two Phase (e.g. Average Activation) report, a set of sub modes are presented in the vertical sub mode column: One phase reports: Two phase reports:
Set period by Channel – select the trigger channel to be used for the auto‐period detection. Only once for each activity – designed for multi‐activity recordings which interrupt a recording via a pausing period.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 56
Threshold Relative tries to automatically detect every Rise and Fall of the trigger signal by checking the TTL range and placing markers at the 50% position between the rise and fall level. This location can be customized by the controls Rise at and Fall at between low and high (TTL level). Absolute takes the amplitude values entered in Rise at and Fall at as threshold lines and uses it for the period definition; each time the TTL signal passes the defined threshold line, it is assumed that this event can be used to define a period.
Minimum (anti‐rattle) duration defines the minimum duration a TTL event has to last to be recognized by the algorithm. This switch can help avoid wrong selections caused by artifact spikes (typically very short spikes).
Note: For very short trigger events like jump ground contacts, this anti‐rattle duration needs to be adjusted to lower values!
Check if one of the offered sub modes is more suitable to your task and select it by confirming OK.
Note: we recommend choosing the basic settings pre‐configured for the report and only entering the period definition tool bar menu if experiencing problems, such as noisy signals. A wrongly selected and operated period definition will result in an inaccurate analysis of the default myoPRESSURE report.
Report Preview and Editing
Once a report is chosen and the analysis periods have been set, a preview of the report will be generated. At this point, there is also the option for printing, exporting, or further editing and analysis.
Norax
P‐4508
In thePrint repor
Print Unde Outp
View
xon U.S.A, In
8 Rev C (April 2
e right side tPreview anrt options an
t Preview
er Print Prev
put Options
Print/ Prinavailable
Copy Elemby clickingclipboard
Export Refile in a sp
Save Repolater use.
w Options
Zoom – thvertically time.
nc.
2014)
tool bar are d Edit Repond customize
iew there ar
nt Options –printer to pr
ment – any eg on the ele to allow for
eport – sendpecified loca
ort Template
he user can zor horizonta
the editing ort. The user e the report
re three avai
– print the rerint to, page
elements (grment. Selectr pasting into
s the report ation.
e As – the us
zoom to a peally, or choo
options. Thecan toggle b.
ilable option
eport or forme size and or
raphs, tablesting Copy Eleo other prog
to clipboard
ser can save
ercentage ose to view t
e report optibetween the
ns: Output, V
mat the repoientation, an
s, etc.) of theement will sgrams such a
d or saved a
e customized
f the report,he report on
m
ons exist in e two to acce
View, and A
ort includingnd margin si
e report cansend the elemas word, pai
s an HTML, T
d report tem
, size the repne or two pa
myoPRESSUR
5
two modes:ess different
Analysis.
g which ize.
be selectedment to the nt, or excel.
Text, or Exce
mplates for
port to fit ages at a
RE
57
: t
d
el
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 58
View Signal – the user can view the signals of a selected element. Clicking on this will display the selected element in the window. To return to the report preview, hit the back arrow button or click on the Report tab.
Analysis Options
Reanalyze – will take the user back to the Viewer menu to change the period definition.
Compare – default is set to none, but the user can choose to compare sides (right vs. left), compare to other records in the database, compare to the normative records in the database, or compare selected channels.
Add To Normative – adds to normatives in the database, or creates and adds to new normatives in the database.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 59
Note: The only normative included with the MR3 software is the Natural Floor Gait Reference Curves. All other normative data must be created and saved by the user. Only the time normalized averaged curves are stored to the given normative file.
Add to normative
MR3 has a powerful normative data generator. It is designed for records analyzed with averaged curves reports such as Gait, Average Activation, Isokinetics, etc. All these records have a time normalized ensemble average curve with plus/minus 1 SD. The time normalization in cycle from 0 to 100% enables a standardized format for comparison files of different phase duration.
Any successfully created averaged curve can create a New normative file or it can be added (Add) to an existing one:
All normative files are listed in the Normative Data base section of the Database menu. They are also available as normative comparison files in the report Comparison option described above.
Compare Click on Compare in the right tool bar menu to start the Comparison Menu. MR3 supports four major comparison routines for report data:
Compare sides
Compare to other records
Compare to normative (if available)
Compare channels (within the same record) Compare sides In records measuring both sides of a muscle group/channel, the Measurement Setup Menu allows each muscle group a side indicator (LT and RT, see Measurement Setup Menu). If this comparison mode is chosen, muscles/channels of the same name but with differing side indicator RT and LT are automatically compared. This function works independently of the channel numbers and arrangements, all channels of the same channel name but with LT and RT indicator are automatically compared!
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 60
Compare to other records Compares the record to another record previously stored in the database and analyzed in the Report menu.
Note: In order to compare records, the records must have generated the same exact report at some point. Only 2 reports should be compared in one comparison run.
After confirming the record selection with , both record data will be shown side by side or as an overlaid signal in each report element:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 61
Compare to normative (curves) MR3’s unique normative data system can be used to compare a current record to a normative record. Normative records are usually time normalized averaged curves of single healthy subjects performing a repetitive sequence of the analyzed activity. To create a normative curve, first the single subject performs a repetitive sequence, and then each repetition period in this sequence is averaged in time normalized cycles. Finally 10 or more of these individual time normalized records are averaged again in MR3’s normative database in a group or normative curve. Once done and available in the normative database, a current patient curve can be compared to this group curve to show differences, such as differences in the EMG pattern.
Note: Only records of the same type and analyzed with the same report settings can be compared.
The selection box Normative has a pull‐down list of all available normative curves available in the current project. Choose a suitable normative record from this list. All normative files that were created with the right tool bar function “Add to normative” are listed here.
MR3 is equipped with one sample normative file for floor walking.
Scale normative – If normative data were not amplitude normalized via Signal processing in the Viewer menu, the amplitude data may heavily vary. This function allows users to amplitude normalize both the selected patient record as well as the
Norax
P‐4508
nbch
Edit Edit Relem
New
This fdoubelem
The uin thehow ttwo.
xon U.S.A, In
8 Rev C (April 2
ormative fileetween curvharacteristic
Report
Report optioents.
Element
function creble click withent.” The ne
user can detee box. Each ethe element
nc.
2014)
e to its Peakves and allowcs:
ons allow the
ates areas foin one of theew element
ermine whicelement willt information
k or its Meanws more det
e user to cus
or the user te dashed arebox will app
ch element tl have differn will be disp
n value. Thistailed inspec
stomize the
to insert neweas with thepear:
they need byent availableplayed, i.e. t
procedure ection of curv
report by ad
w elements. e text “Doub
y reading thee parametertable, graph,
m
enables a beve behavior a
dding or dele
The user muble‐click here
e descriptiors and outpu, or combina
myoPRESSUR
6
etter fit and other
eting
ust then e to insert an
ns provided ut options foation of the
RE
62
n
or
Norax
P‐4508
Delet To reElemselec Afterjump
At th
xon U.S.A, In
8 Rev C (April 2
Note: Any
te Element
emove an eleent.” This wted the elem
r finishing thp into any oth
is point you
nc.
2014)
y elements i
ement from will prompt thment will be
e report revher main me
can also cho
n the report
the report, she user withremoved fro
view you canenu shown i
oose to Exit
t can be edit
simply click h a confirmatom the repo
n freely contn the main p
the program
ted by doubl
on the elemtion messagort.
inue to printpackage nav
m or begin a
m
le clicking th
ment and selege, and if “Ye
t the report vigation bar:
nother mea
myoPRESSUR
6
he element.
ect “Delete es” is
or directly
surement.
RE
63
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 64
Appendix A: Report Descriptions
MyoPressure Bilateral Gait Report With the exception of a couple of analysis parameters both MyoPressure‐T treadmill and MyoPressure‐S insole records will result in the same analysis report. The report consists of 3 pages unless there is additional data from a multi‐device setup:
If a multi‐device setup was used with EMG, Motion data and/or video the report can grow up to 7 – 8 pages.
MyoPressure Report Page 1
Report header
This header box is repeated on each report page. Users can change pictures (e.g. add a company logo), title text, selection of patient or record property items by double clicking on the element to be changed.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 65
Pressure Prints
This report element shows the average and maximum pressure data of all detected steps in a color coded isobar graph. The migration of the center point of pressure (COP) is shown as a grey line, known as the gait line.
COP Diagram (or Cyclogram) The COP diagram consists of three graphs:
Left (red) and right (green) gait lines from each stride plus a butterfly diagram in the middle. The butterfly diagram is meant to analyze the pattern characteristics of COP migration from back to forefoot roll up phase and then turn transversion to the other side. To do this both feet are artificially placed side by side to visualize the motion pattern within. It is a very sensitive tool to identify asymmetries and abnormalities in gait and running activities.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 66
COP Parameters The COP parameters are a set of numerical values describing gait line and butterfly related characteristics:
Gait Line Length The Length of Gait Line is the length of the line that describes the course of the pressure center, with only the individual ground contacts on one side of the body are taken into consideration. This parameter comprises the course of the MPP for all the steps recorded for one side of the body. Single Support Line The Single Support Line is equivalent to the average length of the lines that describe the course of the pressure center, when all the ground contacts are taken into consideration. Anterior / Posterior Position This parameter takes all the user’s steps into consideration to describe the shift forwards / backwards, of the intersection point of the course of the CoP in the cyclogram display. The zero position is the heel strike. Lateral Symmetry This parameter takes all the user’s steps into consideration to describe the shift to the left / right of the intersection point of the course of the CoP in the cyclogram. A negative value indicates a shift to the left side, and a positive value a shift to the right side. The zero position is the center of the presentation.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 67
MyoPressure Report Page 2 Page two refers to the classical gait parameters describing phase related, temporal and spatial aspects of the gait performance related to gait events and gait sub phases. MR3 is using the gait phase definition established by J. Perry:
Gait Phase Parameters
Phase in % cycle DescriptionStance Phase
Describes the period within a gait cycle during which the foot has contact with the ground
Load Response
Describes the Load Response period within a gait cycle
Mid Stance
Describes the period within a gait cycle during which the contralateral foot has no contact with the ground
Pre-swing
Describes the pre-swing period within a gait cycle
Swing Phase Describes the period within a gait cycle during which the foot has no contact with the ground
Double Stance Describes the period within a gait cycle where both feet have ground contact
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 68
Spatial Gait Parameters
Spatial Parameter DescriptionFoot rotation (deg)
Angle between longitudinal foot axis and walking direction (plus = outside, minus = inside) Not calculated for Insole measurements !
Step Length (cm)
Shows the distance between the heel contact of one side of the body and the heel contact of the contralateral side
Stride Length (cm)
Shows the distance between two heel contacts on the same side of the body
Step width (cm)
Distance between left and right heel
Spatial Parameter DescriptionStep Time (sec)
Describes the period within a gait cycle between the heel contact on one side of the body and the heel contact on the contralateral side
Stride time (sec)
Shows the distance between two heel contacts on the same side of the body
Cadence (steps/min)
Shows the parameter steps/minutes and is calculated from the reciprocal of the Stride Time
Velocity
Average walking velocity over all strides
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 69
Averaged Force Curves and Force Parameters The resulting ground reaction force is calculated from the sum of all pressure cell data and shown as a time normalized averaged curve + /‐ 1 standard deviation range:
Standard Amplitude parameters are listed in a table presenting Min, Max and Range value. If EMG or 3D motion signals were recorded together with pressure data, they will be automatically added to the averaged curve analysis element:
=> Force => Knee Angle => Hip Rotation Angle => EMG Tib Ant. => EMG Gastroc.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 70
MyoPressure Stance/Balance Report As indicated by the name this report is meant to used for static posture and balance activities only. This typically happens in an un‐interrupted measurement interval between 30 and 60 seconds. A period definition (to e.g. identify gait events and steps) is not needed. The previous chapter for the MyoPressure Bilateral Gait Report explains most of the report selection and final report options, so that in this chapter only the report elements specific to the Stance analysis report are explained.
Report header
This header box is repeated on each report page. Users can change pictures (e.g. add a company logo), title text, selection of patient or record property items by double clicking on the element to be changed.
Average Stance Pressure Print
In this diagram the average load distribution under the feet is displayed in color. The color scale enables the load distribution to be quantified. The central circled line shows the centers of pressure (COP) migration over the time (sway).
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 71
Center Point of Pressure parameters
Analysis Time Duration of analyzed interval in sec 95% confidence ellipse area COP path lenth Traveled distance of COP in mm COP average velocity Mean velocity of COP movement in mm/s
Advanced Parameters The list of advanced parameters describes the ellipse around COP with a set of specific parameters.
The parameters are best explained with this diagram:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 72
Weight distribution: Based on the average force, the weight distribution is calculated between fore and backfoot and left / right foot:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 73
Left and right force curve The four channel curves show the left and right side fore and back foot force curves over time in N:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 74
Appendix B: Multi‐Device Configurations and Master Sync System
Whenever myoPRESSURE is used with other Noraxon devices like myoMOTION, myoMUSCLE EMG telemetry or myoVIDEO camera recording, it is recommended that the Master Sync System be purchased and activated.
The Master Sync is a special sync device with 5 output ports and 1 input port. It needs to be inserted as a device in the device setup menu: Make sure that the Master Sync device is connected to your PC prior to opening the Insert Devices menu:
Once the Master Sync is inserted as a device, it will automatically send a synchronization pulse to all other Noraxon devices. This pulse is generated and sent 1 second after start of recording. For setup with multiple devices for master sync mode please refer to Appendix C and the instructions in the hardware manual of the other devices.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 75
Appendix C: Master Sync and Connection Schemes for myoPRESSURE Treadmills and Platforms
Requires:
Noraxon Master Sync device
Sync cable for Pressure distribution plates and treadmills 1) Connect the Master Sync device to your PC via USB cable 2) Start the Device Setup menu by clicking on Setup in Home screen (right tool bar) 3) Click Insert Device and select the Noraxon Master Sync as a device to be added 4) Confirm with OK and make sure that the Noraxon Master Sync device is shown in the Selected Devices section:
5) When done click on the myoPRESSURE Force plate symbol and hit Configure Device‐ 6) Select Noraxon Master Sync (Sync In) for the Hardware Synchronization selection line:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 76
Go back to home screen when done by confirming all menu screens with OK. 7) Connect the treadmill sync cable (may require a special purchase order) in one of the Master Sync’s output ports and treadmill sync’s input port 8) When done perform a test recording. If the Master Sync signal is not seen by the treadmill there will be an automatic error message in the storing dialog right after finishing a recording.
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 77
Appendix D: Master Sync and Connection Schemes for myoPRESSURE Medilogic Insoles
Requires:
Noraxon Master Sync device with wireless sync accessory
WST Sync receiver model G1 or G2, dependent on EMG device
Medilogic Sync cable to connect WST sync receiver to Medilogic transmitter 1) Connect the Master Sync device to your PC via USB cable 2) Start the Device Setup menu by clicking on Setup in Home screen (right tool bar) 3) Click Insert Device and select the Noraxon Sync Master as a device to be added 4) Confirm with OK and make sure that the Noraxon Sync master device is shown in the Selected Devices section:
5) When done click on the MyoPressure Medilogic Insole symbol and hit Configure Device 6) Select Sync in the Hardware Synchronization selection line:
Noraxon U.S.A, Inc. myoPRESSURE
P‐4508 Rev C (April 2014) 78
Go back to the home screen when done by confirming all menu screens with OK. 7) Connect the WST Sync receiver to Medilogic by using the Medilogic sync cable. 8) When done perform a test recording. If the Master Sync signal is not seen by the Medilogic Insole system there will be an automatic error message in the storing dialog right after finishing a recording.