Hamstring stretch with strap supine Lie on your back with a strap around the foot of your affected leg. Pull the knee in towards your chest, then straighten the leg up towards the ceiling until you feel a stretch in the back of the thigh. Hold this position. Key Benefits of the Supine Hamstring Stretch with a Strap 1. Maximizes Stretch on the Hamstrings Optimal Pelvic Positioning: By lying on your back, it is much easier to maintain a neutral spine and prevent your lower back from rounding (post