For legs pain •Hamstring stretching •Towel Hamstring Stretch •Lie on the back, supporting the thigh with the hand or with a towel wrapped around it.. • Slowly straighten the knee until a stretch is felt in the back of the thigh, trying to get the bottom of the foot to face the ceiling, one leg at a time. •Hold the position initially for 10 seconds, and gradually work up to 20 to 30 seconds. It is due weakness of muscles.