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Standing Hip Flexor March

Also called: High-knee march

Simplified front view of the pelvis showing the wing-shaped hip bones meeting at the pubic symphysis, the ball-and-socket hip joint where each femur meets the acetabulum, and the iliopsoas running from the lower spine across the front of the hip to the femur. — Pelvis & hips — hip bone, hip joint, and iliopsoas (simplified). A beginner-level schematic of the pelvis's bony ring, the hip joint, and the iliopsoas hip-flexor muscle.
Illustration: Anatomy Learning Platform (original) · CC0-1.0 (public domain dedication)

Primary muscles: Iliopsoas

Joints / actions: Hip joint (coxal joint) (flexion)

Plane: sagittal

Equipment: bodyweight

What it is

Standing tall and alternately lifting each knee toward the chest in a controlled marching motion.

Purpose

Builds control and strength through the hip-flexion range while challenging single-leg balance.

Starting position

Stand tall, feet hip-width apart, core gently braced.

Step by step

Lift one knee toward the chest, keeping the standing leg tall and the trunk upright (avoid leaning back).
Lower the leg with control back to the floor.
Repeat on the other side, alternating in a marching rhythm.

Breathing

Exhale as you lift the knee; inhale as you lower it.

Coaching cues

"Tall spine, lift the knee, don't lean back to help it up."

Common mistakes

Leaning the trunk backward to swing the leg up (using momentum instead of the hip flexor); rushing the tempo; letting the standing-leg hip drop sideways.

Easier regression

Hold onto a support and reduce how high the knee lifts.

Harder progression

Add a resistance band around the thighs, or slow the tempo for more time under tension.

Alternatives

Seated or lying knee raises; band-resisted hip flexion.

Who may benefit

Beginners building hip-flexor strength and control, and anyone working on single-leg balance.

Who should modify or avoid it

Those with current groin or hip joint pain should get clearance before loaded hip-flexor work.

Why this exercise works

It isolates hip flexion — the iliopsoas's main job — while also demanding single-leg balance and trunk control, transferring directly to walking, stair climbing, and sprinting mechanics.

⚠ Safety note

Hold onto a wall or rail for balance if needed; a sharp groin pinch (versus normal muscular effort) is a stop signal.

Sources

“The iliopsoas is the primary flexor of the thigh at the hip joint.”

Anatomy and Physiology 2e — OpenStax, Rice University · Ch. 11.6 Appendicular Muscles of the Pelvic Girdle and Lower Limbs

Peer-reviewed textbook · License: CC BY-NC-SA 4.0 · Last checked 2026-07-19