Exercise and diabetes: what actually helps
For type 2 diabetes the target is 150 minutes a week of moderate activity — thirty minutes on five days — plus resistance exercise twice a week. Muscle is where most glucose is disposed of, so building and using it improves insulin sensitivity directly, and the effect on glucose lasts roughly 24 to 72 hours after a session, which is why regularity matters more than intensity. A short walk after the evening meal reliably lowers the post-meal peak and is the easiest habit to sustain. People taking insulin or a sulfonylurea need to plan around hypoglycaemia.
Diabetologist & General Physician · MBBS
Exercise lowers glucose by two separate routes. During activity, muscle takes up glucose without needing much insulin at all. Afterwards, the muscle refills its glycogen stores and stays more insulin-sensitive for a day or more. That second effect is why three sessions spread across the week beat one long session at the weekend.
The targets
| Type | How much | Examples |
|---|---|---|
| Moderate aerobic | 150 minutes a week, spread over at least 3 days | Brisk walking, cycling, swimming, housework done briskly |
| Resistance | 2 sessions a week, non-consecutive days | Bodyweight squats, resistance bands, light weights, carrying loads |
| Breaking up sitting | Every 30 minutes | Stand, walk to the next room, a few minutes on your feet |
| Flexibility and balance | 2–3 times a week if over 65 | Stretching, standing on one leg while holding support |
Starting from nothing
If you currently do no deliberate activity, do not start with 150 minutes. Start with ten minutes a day and add five minutes a week. The failure mode is not doing too little, it is doing too much in week one, aching for four days, and stopping.
- Week 1–2: ten minutes of walking daily, at a pace where you can talk but not sing.
- Week 3–4: twenty minutes, or two sessions of ten.
- Week 5–6: thirty minutes on most days.
- Then add two short resistance sessions — sitting down and standing up from a chair ten times counts as a start.
If you take insulin or a sulfonylurea
When not to exercise
Feet first
Anyone with diabetic neuropathy should check their feet before and after exercise, and wear proper shoes rather than chappals. A blister from a new walking shoe on a numb foot is a common route into a foot ulcer — the activity is still right, the footwear needs attention.
Making it fit a Pakistani week
- Walking to the bazaar rather than taking a rickshaw counts.
- For women who prefer not to walk outdoors, walking indoors, stair climbing, and household work done at pace all count. So do exercise videos followed at home.
- Summer heat is real: walk after maghrib or early morning rather than at 2pm, and drink water.
- Taraweeh during Ramadan is genuine physical activity and should be planned for, not ignored.
- Gym membership is not required for any of this.
What to expect
Regular activity typically lowers HbA1c by around 0.5 to 0.7 percentage points — comparable to adding a medicine — and improves blood pressure, triglycerides and sleep alongside it. Weight may not fall much at first, because muscle is being gained while fat is lost. Judge it by your glucose readings and how you feel on the stairs, not only by the scale.
Common questions
Still not sure what to do?
Reading about a symptom only goes so far. A doctor who can ask you questions and examine you will get further in ten minutes than any article can.
