MANAGING MDI AND EXERCISE FOR TYPE 1 DIABETES 1 S. Roberts Structured Education - Staying Ahead of...

MANAGING MDI AND EXERCISE FOR TYPE 1

DIABETES

1 S. RobertsStructured Education - Staying Ahead of the Game

Learning Outcomes

1.To know the key questions to ask patients with Type 1 diabetes, who require advise on exercise

2.To gain a basic understanding of the bodies physiological response to and consequent effect on blood glucose levels, from taking part in aerobic, anaerobic or mixed aerobic/anaerobic activities

3.To know how to safely advise Type 1 patients on MDI (Multiple Daily Injections) on adjustment of insulin dosage and taking in extra carbohydrates required for aerobic, anaerobic and mixed aerobic/anaerobic activities.


Key Questions To Ask

Key questions to ask patients with Type 1 diabetes, who require advise on exercise



Questions about the person!

Questions about the persons diabetes!

Questions about the person & exercise!



Feedback...!


key questions to ask


Questions About The Persons

Why do you want to start exercising?

What experience do you have with exercise?

What are your short, medium and long term goals?


Questions About The Persons Diabetes

How long have you had diabetes?

Do you suffer any complications? (feet, eyes, blood pressure etc.,)

How is your general diabetes management? (good, sub-optimal etc.,)

How often do you check your blood sugars?

What does your blood sugar profile look like now?

How much support do you currently get to managed your diabetes?

Have you had any structured diabetes training? (DAFNE etc)

Are you familiar with what happens to your blood sugar during and after exercise?

Do you have any other medical conditions which could affect your ability to exercise?


Questions About The Exercise

Type,

Is it structured and planned

Frequency,

Duration,

Intensity,

Previous Experience,


The Bodies Physiological Response

Basic understanding of the bodies physiological response to and consequent effect on blood glucose level of aerobic, anaerobic and mixed aerobic/anaerobic exercise.


• Physical activity

• Exercise


Physical Activity - Exercise

12


PHYSICAL ACTIVITY

Any bodily movement produced by skeletal muscle that result in energy expenditure.

So that includes a broad spectrum of activities, including occupational, leisure and routine daily activities

S. RobertsStructured Education - Staying Ahead of the Game

Heart Disease and Diabetes 2003

13


EXERCISE

This is a component of physical activity and describes physical activity, which is planned and structured and done to improve and or maintain physical fitness


Heart Disease and Diabetes 2003


Basic understanding of the bodies physiological response to and consequent effect on blood glucose level of aerobic, anaerobic and mixed aerobic/anaerobic exercise.



Why use these terms; aerobic and anaerobic?

As these are the two energy systems used during physical activity and exercise.


www.teachpe.com/anatomy/energy_systems.php

http://www.teachpe.com/anatomy/energy_systems.php


The terms aerobic and anaerobic?Literally mean ‘with oxygen’ and ‘without oxygen’ respectively.

When describing exercise these terms were originally used at a time when it was believed that your ability to continue exercising was related to the availability of oxygen. It is now understood that the muscles always have plenty of oxygen, but its the intensity and duration of exercise that dictates the percentage contribution from the various different energy systems.

So, marathon running is largely aerobic but still has a contribution from anaerobic sources whilst 100m sprinting is largely anaerobic but still has a contribution from aerobic sources. And theres a large spectrum of activities which fall between these extremes. For example 400m running may be 50% aerobic and 50% anaerobic.


Runsweet.com - Gallen, Ian W, - Godfrey, Richard


The terms aerobic and anaerobic?

Literally mean ‘with oxygen’ and ‘without oxygen’ respectively.




The terms aerobic and anaerobic?Literally mean ‘with oxygen’ and ‘without oxygen’ respectively.

When describing exercise these terms were originally used at a time when it was believed that your ability to continue exercising was related to the availability of oxygen. It is now understood that the muscles always have plenty of oxygen, but its the intensity and duration of exercise that dictates the percentage contribution from the various different energy systems.

So, marathon running is largely aerobic but still has a contribution from anaerobic sources whilst 100m sprinting is largely anaerobic but still has a contribution from aerobic sources. And theres a large spectrum of activities which fall between these extremes. For example 400m running may be 50% aerobic and 50% anaerobic.




•Aerobic energy system

• In this context ‘aerobic’ refers to the fact that oxygen is required in the process whereby carbohydrates and fats are oxidised (burned) completely to make a compound called ATP (which is the prime energy source of all cells). Typically endurance sports require energy from predominantly aerobic sources.




•Anaerobic energy system

•This system provides energy in the absence of Oxygen.

•This system is used in the first few minutes of all exercise, before there is sufficient oxygen available at the muscles for aerobic metabolism to kick in. It’s also used for fast, powerful bursts of energy, for which the aerobic system is insufficient




•Aerobic/Anaerobic energy system

•As the intensity of exercise increases there is an increasing contribution from anaerobic sources and a decreasing contribution from aerobic sources.




•Recap - Aerobic/Anaerobic energy systems

•The aerobic system produces the largest amounts of energy, although at the lowest intensity.

•At the start of exercise the body cannot deliver oxygen to the muscles fast enough to initiate a complex chemical reaction required during aerobic metabolism. Therefore the body relies on anaerobic processes for the first couple of minutes.


www.teachpe.com/anatomy/energy_systems.php

http://www.teachpe.com/anatomy/energy_systems.php

Exercise And Diabetes, What Happens?

•During exercise, your blood glucose goes up and down, depending upon the type of exercise;

•During short periods of anaerobic exercise, or exercise with short explosive bursts of activity, your glucose levels may rise;

• In contrast, glucose levels generally fall with prolonged aerobic exercise. Hypoglycaemia after exercise can also be a problem.




Know how to safely advise Type 1 patients on MDI on adjustment of insulin dosage, taking on extra carbohydrate required for aerobic, anaerobic and mixed aerobic/anaerobic activities.


To know How To Safely Advise Type 1 Patients On MDI

Metabolic Control Before Exercise

Start exercise blood glucose levels should be between 7-12mml.

Consider consuming extra carbohydrate at the start if levels are <7.

For levels >12mml without ketosis delay glucose replacement during exercise until glucose has fallen.

• Avoid exercise if ketosis is present.25 S. RobertsStructured Education - Staying Ahead of the Game

To know How To Safely Advise Type 1 Patients On MDI

Food Intake

Consume additional carbohydrate as needed to avoid hypoglycaemia. As a general guide for moderate intensity endurance activities high glycaemic index carbohydrate should be consumed after 20minutes of exercise at a rate of up to approximately 1g/kg/hr. Lower intensity activities or intermittent high intensity activities are likely to require smaller rates of carbohydrate supplementation.

Carbohydrate-based foods with a high glycaemic index should be readily available during and after exercise.

Adequate hydration is essential.



To Know How To Safely Advise Type 1 Patients On MDI

Blood Glucose Monitoring Before, During and After Exercise

Measure blood glucose before, every 30minutes during and at the end of exercise.

Identify when changes in insulin or food intake are necessary, where possible sudden unaccustomed changes should be avoided e.g. if a reduction in insulin is thought to be required trial a 20% reduction insulin first don’t jump straight to a 75% reduction.



To Know How To Safely Advise Type 1 Patients On MDI

General SafetyWhere possible avoid exercising alone and alert others to potential signs of hypoglycaemia.

Extra care should be taken when exercising after a recent hypoglycaemic episode as risk of hypoglycaemia during exercise is increased.



Live Web-Surfing

REPs - Register of Exercise Professionals

www.exerciseregister.org

www.runsweet.com

www.brianmac.co.uk

www.teachpe.com

29

http://www.exerciseregister.org/

http://www.runsweet.com/

http://www.brianmac.co.uk/

http://www.teachpe.com/

Live Web-Surfing

REPs - Register of Exercise Professionals

www.exerciseregister.org

http://www.exerciseregister.org/


S. RobertsStructured Education - Staying Ahead of the GameS. RobertsStructured Education - Staying Ahead of the Game

S. Roberts








Live web-surfing

www.runsweet.com


http://www.runsweet.com/

Live web-surfing

www.brianmac.co.uk


http://www.brianmac.co.uk/

Live web-surfing

www.teachpe.com


http://www.teachpe.com/

Live Web-Surfing


www.bbc.co.uk/news/health-17177251

Can three minutes of exercise a week help make you fit?

http://www.bbc.co.uk/news/health-17177251

http://www.bbc.co.uk/news/health-17177251


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