# Lying Legs Extension Toes Flexion - Canonical: https://fitwill.app/exercise/9657/lying-legs-extension-toes-flexion/ - Media ID: 9657 - Primary muscle: Abs - Body part: Core - Equipment: Body Weight - Video: https://fitwill.app/videos/9657/lying-legs-extension-toes-flexion.mp4 ## Description Lying Legs Extension Toes Flexion is a floor-based core movement that combines a reverse-style hip curl with a full leg extension toward the ceiling. You start lying on your back with your knees drawn in toward your chest, then extend the legs straight up while peeling your tailbone slightly off the floor, finishing with the feet actively flexed so the toes pull back toward your shins. Because the hips lift at the same time the legs lengthen, the lower portion of the abdominals has to work through both actions rather than just holding on for the ride. The primary work comes from the lower abs, particularly the lower fibers of the rectus abdominis, which control the posterior tilt of the pelvis as the hips rise. The hip flexors assist strongly as the legs move from the tucked position to vertical, and the quadriceps help lock the knees straight in the extended position. The glutes and stabilizers around the pelvis work isometrically to keep the low back from arching as the legs travel. This setup matters more than people expect. With the knees starting tucked, the lever arm is short, which gives the lower abs a chance to initiate the movement instead of the hip flexors yanking the legs up from a dead hang. Pressing the arms and upper back into the floor anchors the ribcage, so the curl happens at the pelvis rather than as a full-body rock. Keeping the toes flexed adds a small but useful finishing detail: it keeps the legs active at the top instead of letting them go limp overhead. To execute it well, lie flat with your arms alongside your body and exhale as you curl the hips up, thinking about lifting your tailbone toward the ceiling rather than swinging your feet. Pause briefly with the legs vertical, then lower with control, letting the hips return to the floor before the knees tuck back in. The tempo should be slow enough that you could stop at any point and hold the position. This exercise suits people who find hanging leg raises or lying leg raises too demanding on grip or lower back control, since the tucked starting position shortens the lever and keeps the lumbar spine supported. It also works well as a finisher after heavier compound lifts, or as a progression step toward strict hanging hip raises. If you feel it more in your hip crease than your stomach, slow down and reduce the range until the abs re-engage. From a safety standpoint, the main risk is letting momentum take over, which usually shows up as a bouncing pelvis or an arched low back on the way down. Move deliberately, keep the arms planted, and stop the lowering phase at the point where your back starts to lift off the floor. As control improves, you can slow the descent further or add a longer pause at the top. ## Instructions 1. Lie flat on your back on an exercise mat with your legs together and your arms resting alongside your body, palms facing down. 2. Draw both knees in toward your chest so your hips are flexed and your lower back stays flat against the floor. 3. Brace your abdominal wall gently and press your upper back and arms into the floor to anchor your ribcage. 4. Exhale and extend both knees, straightening the legs toward the ceiling while simultaneously curling your tailbone and hips a few centimeters off the floor. 5. At the top, the legs should be nearly vertical with the knees straight and the toes flexed back toward your shins; squeeze the lower abs to hold the position for a moment. 6. Inhale and reverse the path with control: bend the knees first, then let the hips and tailbone lower back to the floor without dropping. 7. Keep the movement smooth from start to finish, avoiding any swing or bounce at the pelvis. 8. Complete your rep, then reset by tucking the knees fully in and re-bracing before beginning the next repetition. ## Tips & Tricks - If your hips never leave the floor, you are only straightening your legs and the lower abs are missing the curl — think about pushing your feet toward the ceiling as your tailbone lifts. - A common mistake is pulling the legs up with the hip flexors from a loose start; keep the knees tucked and the abs braced before each extension so the abdominal muscles initiate. - Do not let the feet drift behind your head at the top — if they do, the hips have lifted too high and momentum is doing the work; stop at vertical. - Keep the toes actively flexed throughout the top position; pointing the feet makes it easy to let the legs go passive and lose abdominal tension. - If your lower back arches on the way down, stop the lowering phase where your back starts to lift and shorten the range until you build more control. - Avoid pressing your head or neck into the floor to generate force — the arms and upper back provide the anchor, and the neck should stay relaxed. - Slowing the descent to a three-count is more productive than adding reps quickly, because the lowering phase is where the lower abs work hardest here. - Keep the legs together as they extend; letting them drift apart turns this into a different movement and reduces the pelvic curl. ## Frequently Asked Questions ### What muscles does Lying Legs Extension Toes Flexion primarily work? The lower abs take the main load because they curl the pelvis as the legs extend. The hip flexors and quadriceps assist with lifting and straightening the legs, and the glutes help stabilize the pelvis. ### Why does this exercise start with the knees tucked toward the chest? Starting tucked shortens the leg lever, which makes it easier for the lower abs to initiate the pelvic curl instead of the hip flexors dominating. It also keeps the lower back supported throughout the movement. ### Is Lying Legs Extension Toes Flexion suitable for beginners? Yes, it is one of the more accessible lower-ab exercises because the tucked start reduces the leverage demand. Beginners should focus on a small, controlled hip lift rather than a big range. ### Should my toes be pointed or flexed at the top of the movement? Flex the toes back toward your shins, as the name indicates. This keeps the legs actively engaged at the top instead of hanging passively overhead. ### Why do my hips need to lift off the floor at all? The hip lift is what separates this from a simple leg extension — it forces the lower abs to curl the pelvis rather than just stabilize. Without it, the hip flexors do most of the work. ### My lower back arches when I lower my legs. How do I fix this? Stop the descent the moment your tailbone starts to leave the floor on the way down and work within that shorter range. Pressing your arms and upper back firmly into the floor also helps keep the ribcage anchored. ### How is this different from a regular lying leg raise? A standard leg raise starts with straight legs on the floor, which is much harder on the lower back and hip flexors. Here the knees start tucked, the hips curl upward with the extension, and the toes stay flexed, making it a more abdominal-focused and back-friendly variation. ### What can I use as a substitute if Lying Legs Extension Toes Flexion is too difficult? A basic reverse crunch without the full leg extension is the closest easier option. Once you can control that, gradually straighten the legs more to progress toward this version. ### Can I do this exercise every day? The abdominals recover quickly compared to larger muscle groups, so frequent practice is possible. Still, treat it like any strength exercise and allow at least a day of recovery between challenging sessions. ### How many reps should I aim for? Start with 2-3 sets of 8-12 slow, controlled repetitions. If you cannot keep your hips lifting smoothly on every rep, reduce the range or the set count rather than swinging through the movement.