# L Sit - Canonical: https://fitwill.app/exercise/10795/l-sit/ - Media ID: 10795 - Primary muscle: Hips - Body part: Core - Equipment: Assisted Knee Raise Station - Video: https://fitwill.app/videos/10795/l-sit.mp4 ## Description The L Sit on a knee raise station is an isometric hold where you support your body on the machine's handles and forearm pads with your back against the upright pad, then lift your legs until your thighs are parallel to the floor. In the full expression the knees stay straight, so your body forms a clear L shape from shoulder to hip to foot. Unlike a floor L Sit, the station removes the demand on your shoulders to hold your whole weight off the ground, which makes it a practical stepping stone toward harder variations. This movement is one of the most honest tests of hip flexor and lower abdominal strength you can do on equipment. The hip flexors do the primary work of holding the legs up, while the abdominals brace hard to keep your pelvis tucked and your lower back flat against the pad. Your triceps, shoulders, and forearms work statically the entire time to keep your torso tall and stable on the handles. Setup matters more here than in most machine exercises. Because there is no dynamic movement, small details decide whether you train the right muscles: how high you press down through the handles, whether your shoulders stay away from your ears, and whether your pelvis is tucked or your lower back is arching. A sloppy setup turns the hold into a passive hang that strains the shoulders and lower back instead of building the core. To execute it well, mount the station, press your back fully into the pad, and push down through the handles to lengthen your neck. Raise your legs in front of you to thigh height, straighten the knees if you can, and hold that position without letting the hips drift backward or the shoulders shrug. Breathe shallowly but continuously, and step down before your form breaks rather than fighting to the point of collapse. The L Sit fits well into calisthenics and general strength programs as a finisher or as part of a dedicated core block. Gymnasts, martial artists, and sprinters value it because strong hip flexors with a braced trunk carry directly into kicking, sprinting, and leg raises. Beginners can start with bent knees held close to the chest and gradually extend the legs and the hold time as control improves. Keep expectations realistic: most people start with holds of five to ten seconds, and that is perfectly fine. Stop each set when your legs start to drop or your lower back pulls away from the pad, since grinding through a failing hold trains nothing useful and loads the spine unnecessarily. ## Instructions 1. Step onto the station's foot pegs and grip the handles firmly, then place your forearms on the pads so your elbows sit directly under your shoulders. 2. Press your entire back, from pelvis to shoulder blades, flat against the upright back pad before your feet leave the pegs. 3. Push down through the handles to lift your ribcage and keep your shoulders pulled down away from your ears. 4. Brace your abdominals and lightly tuck your pelvis so your lower back stays in contact with the pad. 5. Lift both legs together in front of you until your thighs are parallel to the floor, forming an L shape with your torso. 6. Straighten your knees fully if your strength allows; if not, hold with slightly bent knees and keep the thighs at hip height. 7. Hold the position while breathing steadily through your nose and mouth rather than holding your breath. 8. Keep your eyes forward and your neck long, avoiding the urge to crane your chin up or drop your head between your shoulders. 9. When the hold ends, lower your legs slowly back toward the pegs, place your feet down one at a time, and step off to reset. 10. Rest briefly before the next hold so each set starts with a solid brace rather than leftover fatigue. ## Tips & Tricks - If your shoulders creep up toward your ears during the hold, push harder down through the handles; that downward press is what keeps your neck long and the shoulder joints safe. - A lower back that arches away from the pad usually means the pelvis is not tucked. Reset with a slight posterior tilt before lifting the legs rather than letting the spine compensate. - Shorter holds with straight knees beat long holds with sagging legs. Drop the hold time before you drop the leg position. - Point your toes forward with legs extended and squeeze the quads; this lightens the load on the hip flexors slightly and makes the hold cleaner. - If your grip gives out before your core does, chalk your hands or use a hook grip on the handles so the forearms are not the limiting factor. - Bent-knee holds are a legitimate progression, not a cheat. Keep the knees tucked at roughly 90 degrees and extend them gradually over weeks. - Do not let your hips drift backward off the pad as the legs rise; the back pad only works if your torso stays pressed into it. - Avoid swinging the legs up with momentum. Lift them in a slow, controlled arc so the hip flexors and abs, not the swing, do the work. - Stop the set the moment one leg starts dropping lower than the other, which is the first visible sign the hold is failing. ## Frequently Asked Questions ### Which muscles does the L Sit on a knee raise station work the most? The hip flexors do the main work of holding the legs at thigh height, with the abdominals, especially the lower portion of the rectus abdominis, bracing the pelvis. The shoulders, triceps, and forearms work statically to keep you supported on the handles. ### Is the L Sit on a station easier than a floor L Sit? Yes, because the back pad and forearm supports hold your upper body for you, removing the shoulder and triceps strength a floor L Sit demands. It is a good intermediate step before training the movement on parallel bars or the floor. ### How long should I hold the L Sit? Start with holds of five to ten seconds for three to five clean sets, and build toward 20 to 30 seconds. If your legs start dropping or your lower back lifts off the pad, end the set regardless of the clock. ### My knees will not straighten during the L Sit. Is that a problem? Not initially. Bent-knee holds are a standard progression, so keep the thighs at hip height with knees tucked and extend the legs gradually as your hip flexor and hamstring flexibility improve. ### Why do my shoulders ache instead of my abs during the L Sit? That usually means you are sinking into your shoulder joints instead of pressing down through the handles. Push actively into the station, pull the shoulders down away from your ears, and keep the elbows locked under your shoulders on the pads. ### Can I substitute the L Sit with hanging leg raises? You can, and they train similar hip flexor and abdominal muscles, but hanging versions add grip and shoulder demands and involve more swing to control. The station version isolates the hold itself, which makes the two a good complement. ### Should my lower back stay against the pad during the hold? Yes. The back pad is your reference point: if your lower back arches away from it, the pelvis is tipping forward and the strain shifts to the spine. Tuck the pelvis slightly and re-press the back into the pad whenever you feel it lift. ### How do I breathe during the L Sit hold? Breathe steadily and shallowly rather than holding your breath. Many people instinctively brace by bearing down, but continuous small breaths keep the hold sustainable without losing abdominal tension. ### Is the L Sit safe for people with lower back issues? The supported position is gentler than many core exercises, but the loaded hip flexion still pulls on the lower back if the pelvis is not controlled. Keep the back flat against the pad, use bent knees to reduce leverage, and stop if you feel sharp or radiating discomfort. ### How often should I train the L Sit? Two to four short sessions per week work well since isometric holds recover quickly. Quality matters more than volume, so fresh, tight ten-second holds beat long, sagging sets.