Standing Knee Raise With Resistance Bands
Build unilateral hip flexor strength and core stability with band-resisted knee drives.
Primarily trains: Primarily develops the hip flexors (iliopsoas, rectus femoris) through resisted unilateral hip flexion, with secondary demand on the standing leg's glute and core for stabilisation.
Step-by-step demonstration
3 sets × 12–15 reps per leg, 45–60 s rest between legs — this rep range targets hypertrophic endurance in the hip flexors, appropriate for beginners building foundational strength.
2-1-2 — a 2-second lift, 1-second hold at the top, and a 2-second controlled lower maximises time under tension in the hip flexors and reinforces stability at end range.
Exhale as you drive the knee up (concentric); inhale as you lower the leg back to the start (eccentric).
Step 1 of 2
Setup
Get into position before the first rep.
- 1Anchor the resistance band at floor level — the base of a door anchor or a low fixed point works best.
- 2Attach an ankle strap to the looped end of the band and secure it firmly around the ankle of your working leg.
- 3Step 3–4 feet away from the anchor, facing away from it, so the band is already under slight tension before movement begins.
- 4Stand tall with feet hip-width apart, brace your core, and place your hands on your hips or lightly touch a wall for balance if needed.
Step 2 of 2
Execution
The actual movement, one rep.
- 1Inhale and brace your core. Shift your weight onto the standing leg, keeping a soft knee — never locked.
- 2Drive the working knee upward in a smooth arc, leading with the thigh until the hip reaches 90° (thigh parallel to the floor).
- 3Keep the shin vertical throughout — foot dorsiflexed (toes up), lower leg hanging perpendicular to the floor, not swinging forward.
- 4Pause briefly at the top with the hip fully flexed and core still engaged.
- 5Lower the leg in a controlled manner under band tension back to the start position — resist the pull; don't let the band snap your leg back.
- 6Complete all reps on one side before switching.
Form cues
What a good coach would say in your ear.
- Stand tall — ribs down, no lower-back arch as the knee rises.
- Drive the knee up, not the foot forward — think 'thigh parallel, shin vertical'.
- Keep the standing hip level; don't hike or drop on the support side.
- Squeeze your core before every rep, not just at the top.
- Control the descent — the eccentric phase is where the strength is built.
Avoid these
Common mistakes.
The technique errors that quietly undo your training.
- Leaning forward or arching the lower back at the top: this compensates for insufficient hip flexor range or core weakness and shifts load to the lumbar spine — keep the torso upright throughout.
- Letting the band snap the leg back: a fast, uncontrolled return removes the eccentric stimulus and risks hip flexor strain — lower slowly against resistance.
- Foot swinging forward like a kick: this recruits momentum and hip extensors rather than isolating the hip flexors — keep the shin vertical.
- Standing too close to the anchor: insufficient band tension at the start means the exercise only loads the last portion of the range — position yourself so there is light tension even at rest.
- Hiking the standing-side hip: this indicates the stabilising glute and lateral hip are not engaged, causing compensatory movement in the pelvis — consciously keep both hip bones level.
Variations & progressions
Make it harder. Make it easier. Make it fit.
- Regression — Bodyweight standing knee raise: remove the band entirely to master balance and hip flexion mechanics before adding resistance.
- Progression — Higher band resistance: move the anchor attachment point to create greater tension, or use a heavier band, once 15 clean reps feel easy.
- Progression — Standing knee raise with trunk rotation: at the top position, rotate the opposite elbow toward the raised knee to increase core and oblique demand.
- Alternative — Cable machine standing knee raise: use a low cable pulley with an ankle cuff for consistent linear resistance throughout the range of motion.
Safety
Avoid this exercise or reduce resistance significantly if you have an active hip flexor strain, groin pull, or recent hip surgery. Individuals with lower-back pain (particularly anterior pelvic tilt or lumbar hyperlordosis) should ensure core bracing is solid before adding band resistance, as weak stabilisers will cause the lumbar spine to compensate. If you feel a sharp pinching sensation at the front of the hip joint at the top of the movement, reduce your range of motion and consult a physiotherapist before continuing.
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