Cardiovascular exercises are recommended. Walking is ideal. Do the necessary warm ups before the exercise. Start with a twenty minute schedule and gradually increase the duration and intensity. Stretches are also beneficial.
Diabetes can lead to shortening of muscles.
Stretching keeps you flexible and fit. If there is a pattern to your sugar level, time your exercise accordingly. If you have high fasting sugar, you can exercise before a meal. If the postprandial sugar level is high, you can go for a walk after meal. If your sugar level is high in the early morning have a workout in the evening, so that blood glucose does not accumulate in the night.