Diabetes and exercise

If physical activity were a drug, we would refer to it as a miracle cure, due to the great many illnesses it can prevent and help treat.1

Research shows exercising regularly reduces your risk of more than 20 medical conditions, including dementia, heart disease, stroke, depression, certain cancers and hip fracture.1 Being active can also help control your weight, boost your mood and help you get more out of life, especially if you find a type of exercise you enjoy.1

The benefits of exercise

  • Helping to control glucose levels

    Regular exercise has been shown to help people living with diabetes lower their HbA1c even without losing weight.2

  • Enabling your body to use insulin more efficiently

    So you may be able to reduce insulin doses or diabetes medications, if your diabetes care team agree3

  • Improving your cardiovascular health

    And reducing your risk of common long-term diabetes complications such as heart disease and stroke.1

  • And sleep better which can help you feel better about living with diabetes.3

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Exercising with diabetes - simple steps for safety

  • Wear medical ID to show you have diabetes and whether you take Insulin in case of an accident.4

  • Warm up for 5 minutes before starting to exercise and cool down for 5 minutes after.4

  • Protect your feet by wearing well-fitting shoes with cushioning and clean, moisture-wicking socks that reduce friction.4

  • Drink plenty of water before, during, and after activity to stay hydrated.4

How much exercise should I do?

The UK’s Chief Medical Officers’ guidelines recommend that every adult does 30 minutes of moderate physical activity five times every week, in sessions of at least 10 minutes.5 Adults are also advised to do some kind of muscle strengthening exercise, such as weight training, carrying heavy shopping or yoga, twice a week.5

‘Moderate’ means exercising hard enough to get your heart beating faster and make you warm and slightly out of breath. Bear in mind though the guidelines are for people who don’t have medical conditions that can make it harder to exercise. Talk to your healthcare professional about the level of exercising that’s safe for you.

If you’re not currently active, you could work up slowly to the recommended level – for example, by going for a 10-minute brisk walk. The good news is, any amount of activity has benefits and is better than none.5

 

What kind of exercise is best?

Everyone’s different, and the best kind of exercise for you is the one that you enjoy, as you’re more likely to make it a regular habit.3

Aerobic exercises

Aerobic exercise is an activity that makes your heart and lungs work harder and moves large muscle groups.6 Examples include:

  • Aerobic classes

  • Brisk walking

  • Swimming

  • Cycling

  • Dancing

Resistance exercises

Resistance exercise helps build muscle strength.6 Examples include:

  • Climbing the stairs

  • Carrying and lifting shopping

  • Digging the garden 

  • Lifting weights

  • Pilates, Tai Chi or yoga

Check with your diabetes care team if you have any concerns about starting a new type of activity. As well as exercising regularly, it’s important to avoid long spells of sitting. Most adults spend more than seven hours a day sitting down, either at home or at work.1 Research suggests that a sedentary lifestyle may be as dangerous to health as smoking,7 so it makes sense to get up from the TV or computer screen and move around as often as you can.

Exercising with diabetes


Being active can benefit your HbA1c and help insulin work better in your body – either the insulin you take or the insulin your body makes. This helps keep your blood sugar levels within target and helps prevent other health problems linked to diabetes, known as complications.3

Avoiding hyperglycaemia (hyper)

  • If you know that your blood glucose tends to rise with exercise, try taking a small dose of insulin pre-exercise.8

  • Consider a small amount of insulin post-exercise or an increase in the basal rate for 30 minutes to 1 hour. Be careful and review with your diabetes team before trying it.8

  • When making corrections, lower the correction dosing.8

  • Remember to hydrate before and during exercise to help prevent hyperglycaemia due to dehydration.8

  • Try to exercise at the same time of day to better understand blood glucose trends and risks of high and low glucose.8
Woman with sensor on her arm gardening while checking her phone

Avoiding hypoglycaemia (hypo)

  • Keep fast-acting hypo-friendly carbs, like sugary drinks or glucose tablets, handy to build confidence and feel safe when active.3

  • Reduce hypo anxiety by checking your blood sugar regularly, learning how your body reacts, and starting with a few minutes of activity before building up gradually.3

  • Some find a continuous glucose monitor (CGM), a quick, reassuring way to track activity’s effect on blood sugar, though it’s not for everyone. For more.3
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