Develop active hip flexion strength at passive end range with this seated passive range hold drill — the upright counterpart to the supine hip flexion PRH, delivering the same powerful end range stimulus to the hip flexors in a seated position that adds the challenge of maintaining postural integrity while the hip works at its absolute limit.

Seated upright, one knee is pulled toward the chest — drawing the hip into its maximum available passive flexion range with both hands assisting the pull. Find the true passive end range of the hip, pulling as close to the chest as possible while keeping the spine tall and the pelvis neutral. From this fully loaded passive position, the task shifts from passive to active — creating a muscular contraction through the hip flexors to catch and hold the leg as close to that passive end range as possible, releasing the hands and sustaining the isometric hold under pure muscular effort while continuing to pull the knee toward the chest for the full duration of the hold.

The seated position adds a postural demand that the supine version does not — the spine must remain tall and the pelvis neutral throughout, without the floor providing the lumbar support available in the supine variation. This makes the seated PRH a natural progression from the supine version, increasing the total demand on the hip flexors and core simultaneously.

As with the supine version, the passive range hold targets the hip flexors at their most shortened, most compressed end range position — where active capacity is almost universally weak and undertrained. The seated position changes the mechanical environment by removing lumbar floor support, demanding that the core and spinal stabilisers work in concert with the hip flexors to maintain position throughout the hold. The continuous pulling cue — actively trying to draw the knee closer throughout the hold — ensures the hip flexors are working at maximum effort rather than simply holding a fixed position, creating a more powerful and complete adaptation stimulus. The gap between what can be passively achieved with hands and what can be actively held without them is the clearest measure of end range hip flexor deficit — and the target this drill is designed to close.

Expect a deep, intense contraction through the front of the hip and hip flexors as the leg is held near passive end range without hand support. The effort will feel disproportionately large for what appears to be a still, small movement — that is completely correct. The spine should remain tall, the pelvis neutral, and the torso should not collapse or round to assist the hold. Any loss of spinal height or pelvic tilt signals that the range needs to be reduced slightly until the position can be held with full postural integrity. Over time, this drill closes the passive-to-active hip flexion gap, builds the core and hip flexor integration needed for athletic performance, and develops the active end range strength that supports deeper squatting, smoother gait, and long-term hip health.