# Lying Legs Extension Abduction - Canonical: https://fitwill.app/exercise/9521/lying-legs-extension-abduction/ - Media ID: 9521 - Primary muscle: Hips - Body part: Hips - Equipment: Body Weight - Video: https://fitwill.app/videos/9521/lying-legs-extension-abduction.mp4 ## Description The Lying Legs Extension Abduction is a bodyweight floor movement that combines two actions into one controlled rep: you extend the knees from a tucked position until the legs point straight up, then spread the feet slightly apart at the top before bringing them back together. It is performed lying flat on your back with your arms alongside your body, which means your trunk has to do all the stabilizing while the hips and knees do the moving. The main work comes from the hip flexors, which hold the thighs folded toward the torso and then control the legs as they reach vertical, and from the quadriceps, which straighten the knees. The small split at the top brings the outer hip muscles, particularly the gluteus medius and tensor fasciae latae, into play, while the deep and lower abdominal muscles work isometrically to keep your pelvis and lower back pressed toward the floor. This exercise suits people who want to train hip and knee control without equipment, making it a natural fit for home workouts, warm-ups, and Pilates-style routines. Because you start with the knees drawn toward the chest, the lever arm is short at the hardest point, so it is generally more accessible than straight-leg raises for anyone building baseline hip flexor and core strength. Setup matters more than it looks. Lying with your whole back flat, head relaxed, and palms down beside your hips gives you a stable base to press into. If your lower back peels off the floor or your pelvis tips forward mid-rep, the lumbar spine takes on load it was never meant to handle in this position. Keep the movement slow enough that you could pause at any point without losing shape. To execute it well, draw the knees in first, brace, then push the feet toward the ceiling by straightening the knees. At full extension, separate the legs by a modest distance, roughly hip-width or slightly more, hold for a beat, and reverse the path by bending the knees and drawing them back toward the torso. The return deserves as much attention as the lift; dropping the legs quickly is where most of the quality is lost. Common use cases include rehabilitation-style hip conditioning, warm-up activation before squats or running, and higher-rep core circuits. If you feel it mostly in the front of the hip or the top of the thigh, that is expected. If you feel it in the lower back, shorten the range, move slower, or reduce how far you spread the legs at the top. ## Instructions 1. Lie flat on your back on a mat or firm floor, arms resting alongside your body with palms facing down. 2. Bend your knees and draw both thighs toward your torso so the knees sit above or slightly beyond your hips. 3. Relax your head and shoulders, lengthen the back of your neck, and gently press your palms into the floor. 4. Brace your abdominal muscles and press your lower back flat against the floor before moving. 5. Exhale as you straighten both knees at the same time, pushing the soles of your feet toward the ceiling until the legs are vertical. 6. At the top, spread the legs apart a comfortable distance, keeping the knees fully extended and the feet relaxed. 7. Pause briefly with the legs open, then bring the feet back together without letting the legs drift away from vertical. 8. Inhale as you bend the knees and draw the thighs back toward your torso with control, resisting the pull of gravity. 9. Reset your brace and pelvis position at the bottom of each rep before starting the next extension. ## Tips & Tricks - Press your palms and the backs of your arms into the floor throughout the rep; this anchors the ribcage and stops the upper body from rocking as the legs move. - The most common fault is arching the lower back as the knees extend. If you feel your waist lifting, straighten the knees only partway and build up gradually. - Keep the abduction small and deliberate. Jerking the legs wide at the top usually means momentum, not outer hip strength, is doing the work. - Do not let the legs travel over your head or drift toward your face; the end position is vertical, with the hips stacked directly under the feet. - Point your toes toward the ceiling rather than letting the feet flop inward or outward; a neutral ankle keeps the knee extension clean. - If the front of your hip grips or pinches, reduce how tightly you draw the knees toward the chest at the start and keep the fold slightly shallower. - Tempo beats reps here. Aim for a two-second extension, a one-second hold with the legs apart, and a two- to three-second return. - Keep the head on the floor. Craning the chin to watch your feet rounds the neck and usually coincides with losing the brace. ## Frequently Asked Questions ### What muscles does the Lying Legs Extension Abduction work? The hip flexors drive the position of the thighs, the quadriceps straighten the knees, and the outer hip muscles control the split at the top. The lower and deep abdominals stabilize the pelvis and keep the lower back flat throughout. ### Is the Lying Legs Extension Abduction suitable for beginners? Yes, because the knees start bent, which shortens the leg lever and makes the hip flexors' job easier. Beginners should limit the abduction to a narrow split and prioritize a flat lower back over range. ### Should my lower back stay on the floor during the Lying Legs Extension Abduction? Yes. The lumbar spine should remain in contact with the floor for the entire rep. If it lifts, bend the knees more, reduce the extension range, and slow the tempo until you can keep the pelvis neutral. ### How wide should I spread my legs at the top of the movement? A modest opening of roughly hip-width to slightly wider is enough to engage the outer hips. Going very wide tends to pull the pelvis out of position and reduces control of the vertical leg position. ### Why do I feel the Lying Legs Extension Abduction in the front of my hips? The hip flexors are working hard to hold and move the thighs against gravity, so a working sensation at the front of the hip or top of the thigh is normal. Sharp pinching is not; shallow the knee tuck and reduce range if that occurs. ### How is this different from a standard lying leg raise? A leg raise lowers straight legs toward the floor and lifts them back up, while this exercise extends the knees from a tucked position to vertical and adds an abduction split at the top. It stresses the quadriceps and outer hips more and is usually easier on the lower back. ### Can I do the Lying Legs Extension Abduction without a mat? Yes, any firm, comfortable surface works since the exercise is bodyweight only. A mat simply cushions the spine and the back of the arms as you press them into the floor. ### How many reps should I perform? Eight to fifteen controlled reps per set works well for strength and control, or slower tempo sets of six to ten if you are emphasizing the stabilization demand. Stop the set when your lower back can no longer stay flat. ### What can I use if I want more challenge from the Lying Legs Extension Abduction? Slow the tempo, add a pause with the legs apart, or wear ankle weights once the bodyweight version is smooth and pain-free. Adding resistance before you control the pelvic position usually just recruits the lower back. ### Is it safe to do this exercise every day? For most people, a bodyweight hip and core movement like this can be performed frequently, especially in low-volume warm-up doses. If the front of the hip or lower back feels irritated, take a rest day and reassess your range and tempo.