# Lying Vertical Hamstring Stretch - Canonical: https://fitwill.app/exercise/8208/lying-vertical-hamstring-stretch/ - Media ID: 8208 - Primary muscle: Hamstrings - Body part: Thighs - Equipment: Exercise Mat - Video: https://fitwill.app/videos/8208/lying-vertical-hamstring-stretch.mp4 ## Description The Lying Vertical Hamstring Stretch is a supine flexibility exercise that targets the hamstrings along the back of the thigh by taking the hip through a full, supported range of flexion while the knee stays long. You lie on your back with one foot flat on the floor and the other leg raised straight up toward the ceiling, then use your hands to gently draw the lifted leg closer to your torso. Because your spine is fully supported by the floor, this position lets you stretch deeply without the lower back having to hold you up, which is exactly why many coaches prefer it to standing or seated hamstring stretches. This stretch is useful for almost anyone. Desk workers who sit for long hours tend to develop short, tight hamstrings that pull on the pelvis and contribute to a stiff lower back. Runners, cyclists, and lifters use it as part of a cool-down after training, and it is a common rehabilitation and warm-up tool for people returning from hamstring strains. It is also a reliable starting point for beginners working toward deeper poses like standing forward folds or supine strap stretches, since the floor gives immediate feedback about where the leg actually is. The main muscles lengthened are the hamstrings, particularly the biceps femoris on the outside of the thigh and the semitendinosus and semimembranosus toward the inside. As the leg travels toward vertical, you will also feel the calf and the tissue behind the knee, and the glutes and hip flexors of the working leg help control the position. The bent leg anchored on the floor keeps the pelvis from tipping, which concentrates the stretch where you want it instead of letting the lower back round and absorb the movement. Setup matters more here than most people expect. Keep your head, shoulders, and hips stacked on the mat, and only bring the leg up as far as the back of the thigh allows while the knee stays nearly straight. Pulling with the hands behind the thigh, never on the knee or shin, keeps the joint supported. The moment you feel the stretch turn into a sharp or grabbing sensation behind the knee or in the lower back, back off slightly and hold a comfortable, steady tension. In practice, hold each side for twenty to thirty seconds and breathe slowly throughout, letting the leg drift a little closer on each exhale as the muscle relaxes. One to three rounds per leg works well either after a workout, during a dedicated flexibility session, or as a morning mobility routine. Consistency over weeks is what changes your range, not forcing a deeper angle in a single session. ## Instructions 1. Lie on your back on an exercise mat with both legs extended or both knees bent and your feet flat on the floor. 2. Draw one knee toward your chest, then straighten that leg up toward the ceiling so the sole of your foot faces the sky. 3. Bend the opposite leg and plant that foot flat on the floor to anchor your pelvis and keep your lower back in contact with the mat. 4. Reach both hands up and clasp them behind the thigh of the raised leg, gripping near the back of the knee or the upper calf, not on the knee itself. 5. Gently pull the straight leg toward your head until you feel a firm but comfortable stretch along the back of the thigh and behind the knee. 6. Keep the raised knee as straight as you comfortably can and press the heel toward the ceiling to lengthen the hamstring further. 7. Relax your shoulders and neck, keep your head resting on the mat, and hold the position while breathing slowly and deeply. 8. With each exhale, ease the leg a fraction closer if the tissue allows, but never force or bounce the movement. 9. Slowly release your grip, bend the knee, and lower the leg back to the floor with control before switching to the other side. 10. Repeat on the other leg, holding each side for about twenty to thirty seconds, and complete one to three rounds. ## Tips & Tricks - The most common mistake is pulling on the knee or shin, which loads the joint; keep your hands behind the thigh so the hamstring does the stretching. - If your knee bends as the leg rises, you are chasing height at the expense of the stretch — lower the leg slightly and straighten the knee instead. - Watch that the hips stay level: if the pelvis on the stretching side lifts off the mat, ease the leg down a few degrees. - The opposite foot should press gently into the floor; letting that leg wander reduces the anchoring effect on your pelvis. - A mild pull behind the knee is normal, but sharp pain there usually means an overly aggressive angle or a locked knee — soften the position. - Keep your neck relaxed and your head on the mat; craning forward to watch your leg creates unnecessary tension in the upper body. - If your hamstrings are very tight, let the raised knee bend slightly or place a towel looped around the foot and hold the ends instead of reaching with your hands. - Do not bounce at the end range; the floor-supported position is ideal for long, static holds, which is where most of the flexibility benefit comes from. - Breathe steadily through the hold — holding your breath tends to tense the hamstrings and shortens the stretch. ## Frequently Asked Questions ### What muscles does the Lying Vertical Hamstring Stretch target? It primarily lengthens the hamstrings, including the biceps femoris, semitendinosus, and semimembranosus. You will also feel the calf and the tissue behind the knee as the leg approaches vertical. ### Why stretch the hamstrings lying down instead of standing? Lying on your back supports the spine completely, so you can stretch the hamstring deeply without the lower back or postural muscles having to stabilize you. This makes it easier to relax into the stretch and harder to cheat with a rounded back. ### Is the Lying Vertical Hamstring Stretch suitable for beginners? Yes, it is one of the most beginner-friendly hamstring stretches because the floor provides support and feedback. Beginners should start with the leg at a lower angle and only reach a comfortable tension rather than trying to get the leg fully vertical. ### Should my raised leg be completely straight? Aim for a nearly straight knee, but do not lock or force it. A very slight bend keeps the joint comfortable while still loading the hamstring, and the stretch will deepen over time. ### Can I use a towel or strap instead of my hands? Yes. Looping a towel or strap around the foot or ankle and holding the ends is a great option if tightness in the hamstrings or shoulders makes reaching behind the thigh awkward, and it keeps the knee supported at the same time. ### How long should I hold each side? Twenty to thirty seconds per leg is a solid standard, repeated one to three rounds. For a post-workout cool-down, longer holds of thirty to forty-five seconds are also fine as long as the sensation stays comfortable. ### Why does my lower back lift off the mat when I pull the leg up? That usually means the pelvis is tipping backward because the hamstring cannot lengthen enough at that angle. Lower the raised leg a few degrees and make sure the opposite foot stays planted to anchor the hips. ### Is it normal to feel the stretch behind the knee rather than in the thigh? Yes, this is common because the tissue behind the knee is often tighter than the hamstring belly. Soften the knee slightly and focus on pressing the heel toward the ceiling so the tension shifts back into the thigh. ### When is the best time to do the Lying Vertical Hamstring Stretch? It works best after training, when the muscles are warm, or during a dedicated flexibility session. It can also be used gently in the morning, just keep the intensity lower until the body has warmed up. ### Are there safety concerns I should know about? Avoid bouncing, pulling directly on the knee, and pushing into sharp pain, especially if you have a recent hamstring strain or a history of back problems. Move slowly, stay within a comfortable stretch, and stop if you feel any grabbing or nerve-like sensation down the leg.