managing mdi and exercise for type 1 diabetes 1 s. roberts structured education - staying ahead of...
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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.
2 S. RobertsStructured Education - Staying Ahead of the Game
Key Questions To Ask
Key questions to ask patients with Type 1 diabetes, who require advise on exercise
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Key Questions To Ask
Questions about the person!
Questions about the persons diabetes!
Questions about the person & exercise!
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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?
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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?
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Questions About The Exercise
Type,
Is it structured and planned
Frequency,
Duration,
Intensity,
Previous Experience,
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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.
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• Physical activity
• Exercise
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Physical Activity - Exercise
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Physical Activity - Exercise
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
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Physical Activity - Exercise
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
S. RobertsStructured Education - Staying Ahead of the Game
Heart Disease and Diabetes 2003
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.
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The Bodies Physiological Response
Why use these terms; aerobic and anaerobic?
As these are the two energy systems used during physical activity and exercise.
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www.teachpe.com/anatomy/energy_systems.php
The Bodies Physiological Response
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.
16 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
The Bodies Physiological Response
The terms aerobic and anaerobic?
Literally mean ‘with oxygen’ and ‘without oxygen’ respectively.
17 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
The Bodies Physiological Response
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.
18 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
The Bodies Physiological Response
•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.
19 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
The Bodies Physiological Response
•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
20 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
The Bodies Physiological Response
•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.
21 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
The Bodies Physiological Response
•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.
22 S. RobertsStructured Education - Staying Ahead of the Game
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.
23 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
Key Questions To Ask
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.
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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.
26 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
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.
27 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
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.
28 S. RobertsStructured Education - Staying Ahead of the Game
Runsweet.com - Gallen, Ian W, - Godfrey, Richard
Live Web-Surfing
REPs - Register of Exercise Professionals
www.exerciseregister.org
www.runsweet.com
www.brianmac.co.uk
www.teachpe.com
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Live Web-Surfing
REPs - Register of Exercise Professionals
www.exerciseregister.org
S. RobertsStructured Education - Staying Ahead of the GameS. RobertsStructured Education - Staying Ahead of the Game
Live web-surfing
www.runsweet.com
41 S. RobertsStructured Education - Staying Ahead of the Game
Live web-surfing
www.brianmac.co.uk
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Live web-surfing
www.teachpe.com
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Live Web-Surfing
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www.bbc.co.uk/news/health-17177251
Can three minutes of exercise a week help make you fit?