# Suspender Hip Lift Knee Tuck - Canonical: https://fitwill.app/exercise/10344/suspender-hip-lift-knee-tuck/ - Media ID: 10344 - Primary muscle: Abs - Body part: Core - Equipment: Suspension - Video: https://fitwill.app/videos/10344/suspender-hip-lift-knee-tuck.mp4 ## Description The Suspender Hip Lift Knee Tuck is a suspension trainer exercise that combines a plank hold with a powerful knee-tucking hip lift. Your feet rest in the suspension straps behind you while your forearms stay planted on the floor, and from that long plank position you draw both knees in toward your chest and drive your hips upward before extending back out. Because the feet hang from an unstable anchor, every rep forces your trunk to work overtime just to hold its shape. This movement targets the lower abs and deep core as the primary drivers, with strong assistance from the hip flexors as the knees travel forward. The glutes and hamstrings light up on the lift and during the controlled return, and the shoulders, chest, and upper back hold you steady on your forearms throughout. The highlighted areas in the movement pattern are exactly where you should expect to feel it: the front of the hips, the lower belly, and the backside. The suspension setup is what separates this from a floor-based knee tuck or V-up. With your feet suspended, the feet-to-anchor point is unstable and slightly behind your center of mass, so your abs must brace continuously to stop your hips from sagging. It also changes the leverage: the farther the straps hang from vertical, the harder the plank and the tuck become. Anchor height and strap length are your main dials for difficulty, so set them deliberately rather than by guesswork. To execute it well, keep the movement driven by the hips and spine rather than momentum. Tuck the knees until they approach the elbows or chest, let the hips rise into a piked position at the top, then extend the legs back to the full plank without letting the low back dip. Move at a pace you can fully control on the way out as well as the way in; the return is where most people lose tension. This exercise suits intermediate to advanced trainees who can already hold a solid plank for 45 seconds or more and want a serious anterior core challenge. It fits well as a core finisher after lower body or pulling sessions, and it is a staple in suspension-based conditioning circuits. Beginners can scale it by walking the hands farther from the anchor or by performing single-knee tucks instead of moving both legs together. A few safety points matter here. Keep the straps positioned at the midfoot or instep so the feet cannot slip out, and check that the anchor point is rated for your body weight before loading it. Stop the set as soon as your hips start sagging or your shoulders start creeping toward your ears, because a tired plank is where low back strain creeps in. ## Instructions 1. Set the suspension straps to roughly mid-calf height and thread both feet into the foot cradles, placing the straps across the middle of each foot so they cannot slide off. 2. Walk your hands out and lower onto your forearms into a plank, positioning your elbows directly under your shoulders and your body in one straight line from head to heels. 3. Adjust your distance from the anchor so the straps hang close to vertical for an easier set, or step back slightly for more load on the core. 4. Brace your abs and squeeze your glutes before moving, and take a breath in through your nose. 5. As you exhale, pull both knees in toward your chest and let your hips rise, piking your body so the knees travel under or toward the elbows. 6. Pause briefly at the top with the knees fully tucked and your weight shifted slightly toward the shoulders. 7. Slowly extend the legs back, lowering the hips until you reach the full forearm plank again, resisting the straps as your body lengthens. 8. Keep breathing steadily throughout, exhaling on the tuck and inhaling on the extension. 9. Complete your reps with the same range each time, then carefully pull one foot out of its strap at a time while staying on your knees to avoid the straps yanking your legs back. ## Tips & Tricks - If your lower back arches and hips sag in the plank before you even start the tuck, you are set too far from the anchor; move your hands closer so the straps hang more vertically. - Do not let the knees just swing loosely under you. The tuck should come from curling the pelvis, otherwise the hip flexors do the work and the abs get little out of it. - A common mistake is pushing the hips too high and turning this into a pike with straight legs. If you want that range, keep knees bent first and only add hip height once you control the knee path. - Keep your neck relaxed and eyes slightly down rather than craning to look forward, which loads the neck and pulls your shoulders out of position. - If the foot cradles slide toward your toes, reposition them to the midfoot; a strap slipping to the toes changes your leverage and can cause an awkward fall mid-set. - Control the return for two to three seconds. Most of the core benefit is lost when the legs shoot straight back and the hips drop into an arch. - If your shoulders fatigue before your abs, shorten your sets or widen your elbow placement slightly under the shoulders so the upper body is not the limiting factor. - Avoid doing this exercise on a slick floor with your forearms sliding; use a mat or non-slip surface so the elbow position stays fixed. - Dismount one foot at a time and settle onto your knees first, because jumping both feet out of hanging straps at once often ends with the straps snapping back. ## Frequently Asked Questions ### What muscles does the Suspender Hip Lift Knee Tuck work? The lower abs and deep core do most of the work, supported by the hip flexors during the tuck. The glutes and hamstrings contribute on the lift and return, while the shoulders and upper back stabilize you on your forearms. ### Is the Suspender Hip Lift Knee Tuck suitable for beginners? It is generally too demanding as a first core exercise because the suspended plank alone requires solid trunk control. Beginners should master a standard forearm plank and a floor knee tuck first, then start with the straps set close to vertical or single-knee variations. ### How high should I set the suspension straps for this exercise? Mid-calf to lower-shin height works well for the tuck. Lower anchors make the plank and tuck easier, while higher anchors increase instability and core load. ### Why do my hips sag between reps of the Suspender Hip Lift Knee Tuck? That usually means fatigue in the abs or a setup that is too far from the anchor, giving the straps extra leverage over your trunk. Shorten the set and step your hands slightly closer to the anchor so the straps hang more vertically. ### Should the knees tuck to the chest or the hips simply pike up? The intended path draws the knees toward the chest with the hips rising into a pike at the top, which the movement highlights in the lower belly and front of the hips. If your hips rise but the knees barely bend, the glutes and hamstrings are doing more than the abs. ### What can I use if I do not have a suspension trainer? Floor slider knee tucks from a plank position are the closest substitute, and a stability ball pull-in also trains the same tuck pattern. Both remove the hanging setup but keep the hip flexion and pelvic curl. ### How many reps of the Suspender Hip Lift Knee Tuck should I do? Work in the 8 to 15 rep range for controlled sets, or use 20 to 30 second intervals if you prefer time-based training. Stop when your plank position breaks down, since quality of the tuck matters more than total volume. ### Is it safe to do this exercise with lower back discomfort? The hanging plank stresses the low back when the hips sag, so anyone with back issues should be cautious and keep the range conservative. If discomfort appears, regress to floor knee tucks and rebuild trunk control before returning. ### Where should the straps sit on my feet? Position them across the midfoot or instep, not the toes. That keeps the feet secure inside the cradles and prevents the straps from slipping off mid-rep.