Living with diabetes often means managing not just blood sugar, but also the emotional ups and downs that can come with a chronic condition. While medication and diet are crucial, there’s a powerful, often overlooked tool that can significantly improve both your physical and mental health: exercise. Regular physical activity can support mood and stress management, helping to lift your mood, reduce stress, and enhance your overall quality of life, all while supporting your diabetes management goals.
Key takeaways
- Use your own glucose targets, medication plan, and trend data when planning activity.
- Carry fast-acting carbohydrate if you use insulin or medicines that can cause low blood glucose.
- Start gradually and ask your care team about limits if you have neuropathy, eye, kidney, or heart disease.
Why this matters when you live with diabetes
Physical activity is a cornerstone of diabetes management, offering a multitude of benefits that extend beyond just blood glucose control. When you exercise, your body becomes more sensitive to insulin, meaning your cells can more effectively use glucose for energy. This increased insulin sensitivity can last for 24 hours or even longer after a workout, contributing to more stable blood sugar levels. Beyond the physiological effects, exercise triggers the release of endorphins, natural mood elevators that can reduce feelings of pain and promote a sense of well-being. It also helps to alleviate symptoms of anxiety and depression, common challenges for many people living with diabetes. Regular movement can improve sleep quality, boost energy levels, and enhance self-esteem, creating a positive cycle that supports both physical and mental resilience.
What to do before you start
Before lacing up your shoes, a little preparation can go a long way, especially when managing diabetes. Always discuss any new exercise routine with your healthcare professional to ensure it’s safe and appropriate for your individual health status and any diabetes complications you may have.
Pre-exercise Glucose Safety: If you use insulin or medications that can cause low blood glucose (hypoglycemia), checking your blood sugar before exercise is crucial. Use the pre-exercise glucose range recommended by your care team. If glucose is below your personal safe range or trending down, follow your plan for carbohydrate treatment. If glucose is very high, check ketones if you have type 1 diabetes or are at risk for ketosis. High blood sugar with ketones means your body isn’t using insulin effectively, and exercise could raise your blood sugar further. In this case, it’s best to delay exercise until your blood sugar is safer and ketones are absent.
Medication and Device Adjustments: Your healthcare team might recommend adjusting your insulin or medication doses before or after exercise to prevent hypoglycemia. If you use an insulin pump, you might temporarily reduce your basal rate. Always follow your personalized plan. Protect your insulin and diabetes devices from extreme temperatures during your workout.
Hydration: Staying well-hydrated is vital, especially during physical activity. Drink water before, during, and after exercise. Dehydration can affect blood sugar levels and overall performance.
Practical steps you can use this week
Incorporating physical activity into your routine doesn’t require drastic changes. Start where you are and gradually build up. Remember, consistency is key.
Beginner Plan: If you’re new to exercise, start with short, manageable bursts of activity. Aim for 10-15 minutes of brisk walking, light cycling, or gentle stretching most days of the week. Break up prolonged sitting with 3-minute walks every 30 minutes. Focus on finding activities you enjoy to make it sustainable. Always include a 5-minute warm-up of light activity and a 5-minute cool-down with stretching.
Moderate Plan: Once you’re comfortable, gradually increase the duration and intensity. Aim for at least 150 minutes of moderate-intensity aerobic activity (like brisk walking, swimming, or dancing) per week, spread across at least three days, with no more than two consecutive days without exercise. Add 2-3 days of resistance training (using light weights, resistance bands, or bodyweight exercises) to build muscle strength. Continue with warm-ups and cool-downs.
Advanced Plan: For those already active, challenge yourself with higher intensity workouts, longer durations, or new activities. Consider interval training, more vigorous aerobic exercise, or advanced resistance training. Always listen to your body and avoid overtraining. Explore activities like hiking, running, or organized sports.
Monitoring Glucose Patterns: Regularly check your blood glucose before and after exercise to understand how different activities affect your levels. If you use a Continuous Glucose Monitor (CGM), pay attention to trends during and after your workouts. This data will help you and your healthcare team fine-tune your diabetes management plan around your activity.
When to call your healthcare professional
While exercise is generally beneficial, certain symptoms warrant immediate attention from your healthcare professional:
- Persistent or severe hypoglycemia: If you frequently experience low blood sugar during or after exercise, even with adjustments.
- Unexplained high blood sugar: If your blood sugar consistently remains high after exercise, or if you develop ketones.
- Chest pain, dizziness, or severe shortness of breath: These could be signs of a more serious underlying condition.
- New or worsening pain: Especially in your feet, legs, or joints, which could indicate an injury or complication.
- Non-healing sores or blisters: Particularly on your feet, as these can be serious for people with diabetes.
When to Pause: If you feel unwell, experience unusual pain, or have very high or very low blood sugar, it’s important to pause or stop your exercise session. Your safety should come first.
Questions to ask at your next visit
Prepare for your next appointment by listing any questions or concerns you have about exercise and your diabetes management:
- “What are safe blood glucose targets for me before, during, and after exercise?”
- “Do I need to adjust my insulin or medication doses on days I exercise?”
- “Are there any specific exercises I should avoid given my current health status?”
- “How can I best incorporate resistance training into my routine?”
- “What should I do if my blood sugar goes too low or too high during exercise?”
- “Can you recommend a physical therapist or exercise physiologist who specializes in diabetes?”
Medical note: This article is for education only and does not replace care from your healthcare professional. If you use insulin or medicines that can cause low blood glucose, are pregnant, have kidney disease, heart disease, vision problems, neuropathy, or other diabetes-related complications, discuss changes to food, activity, medicines, devices, or travel plans with your diabetes care team.