Stretching exercises encourage lengthening of your muscles and associated tendons. Short and tight muscles can lead to pressure on nerves and pain. By its effect of lengthening muscles, stretching promotes flexibility and full range of motion about your joints.
Place your right foot on a bench or chair with your leg extended straight
Slowly lean forward while reaching your hands toward your right shin
Keep torso straight
Feel stretch along the back of your right thigh
Keep head up and looking forward so you bend from waist and don’t hunch
Repeat for opposite leg