Gait Analysis Set-up for Measurement

Basics in angle Basics in angle measurement and body measurement and body

markingmarking

Leg Leg axisaxis frontal, dorsalfrontal, dorsal

KneeKnee kinematicskinematics

-- TibiarotationTibiarotation to to thethe femurfemur

Regions of the interest

Regions of the interest

Leg Leg axisaxis sagittalsagittal

rotation rotation upperupper bodybody

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Marker points frontal dorsal

SpinaSpina iliacailiaca anterioranterior superiorsuperiorSIASSIAS

((invisibleinvisible))

CalcaneusCalcaneus, , distaldistal

MidMid buttocksbuttocks faltfalt

[[SulcusSulcus glutealisglutealis]]

MidMid kneeknee jointjoint faltfalt

[[FossaFossa popliteapoplitea]]

CalcaneusCalcaneus proximalproximal --fromfrom lateral lateral

MidMidGastrocnemiusGastrocnemius

((calfcalf musculaturemusculature))

SpinaSpina iliacailiaca posteriorposterior superiorsuperiorSIPSSIPS

Measure the Achilles`tendon angle

AA

BBCC

Measure the Achilles`tendon angle



Marker Marker pointspoints in in thethe practicepractice

Excursus track width

AA

BB

CC

AA

BB

CC

Reference value AT-AnglezWarning: The AT-Angle

is only adaptive, ifthere`s no Overcrossing!

„„OvercrossingOvercrossing““TheThe feetfeet

((specifyspecify thethe midmidof of thethe CalcaenusCalcaenus))

overcrossesovercrosses thethe median median axisaxis duringduring thethe runrun..



Measure the Heel-Ground-angle

Calibration running machine / ground

FixedFixed roomroom connectionconnection

in in thethe orthogonal orthogonal systemsystem

Reference value Heel- Ground- Angle

Supinator Neutral foot Hyper-pronator

HG angle endless- 2° Varus

2° Varus-4° Valgus

+ 4° Valgus -endless



Marker points frontal dorsal

Marker sagittalTrochanterTrochanter majormajor

KneeKnee pivotpivot pointpoint

MalleoulsMalleouls lateralislateralis

Marker sagittal



Knee pivot point

Marker leg axis sagittal

A= 60%; B= 40%; C= 19 mmA= 60%; B= 40%; C= 19 mm

Marker sagittal



Foot marker from lateral

Reference value lateral

Reference value lateralz Flexion of leg axisz 30°-40°

z Thight orientation to thehorizontale

z 15°-20°

z Dorsal flexion of the upperankle joint in mid stance

z 15°-20°

z Lower calf orientation to horizontal

z 15°-20°



Finished leg axis marker set up

The knee

Marker points of the knee

AppexAppex TuberositasTuberositas TibiaeTibiae



Marker points of the patellae

Knee movement pattern of a varus leg axis



Reference value leg axis frontal- dorsalzLeg axis = z 3° varus - 3° valgus

zWarning I: The leg axis angle is veryaddicted to skin rotation.

z At adipose subjects, the angle is onlyconditional informative because of themassive skin adjustments.

zWarning II: Sometimes is not easy to markthe leg axis (private sphere)!

Reference value leg axis to vertical

z thight = 7° Adduction

zLower calf = 7° Adduction

Position of the tight in the room:

Can only be adducted!



Lower calf to the room:

Can only be adducted to!

zThank you foryour attention!



Date post:	08-Feb-2016
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Gait Analysis Set-up for Measurement

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