The Simple Hamstring Stretch
Let's get started with this simple hamstring stretch. If you have low back pain or sciatica , this exercise may place a strain on your back, so proceed with caution. Sit on the floor with both legs out straight. Extend your arms and reach forward by bending at the waist as far as possible while keeping your knees straight. Hold this position for 15 to 30 seconds. Relax back into the starting position. Repeat three times. Be sure to stretch until a gentle pull is felt in the back of your thighs. If you feel any excessive pain, you should stop the exercise.