Half-Kneeling Psoas & Hip Flexor Stretch
The psoas muscle attaches directly to the front of the lumbar vertebrae (L1-L5) and the femur. When shortened from sitting, it pulls the lower back into hyperlordosis and anterior pelvic tilt. Lengthening it removes immense lumbar shear stress.
Step-by-Step Execution
CLINICAL PROTOCOL- 1 Begin in a half-kneeling position with one knee on a padded mat and the front foot flat on the floor, both knees at 90 degrees.
- 2 Tuck your pelvis underneath you (posterior pelvic tilt) and squeeze the glute on the kneeling side.
- 3 Keeping your torso upright, gently shift your entire body weight forward by 1-2 inches until you feel a deep stretch in the front of your kneeling hip.
- 4 Optionally reach the arm on the kneeling side straight overhead and lean slightly toward the opposite side.
- 5 Hold for 30 seconds while breathing calmly. Switch sides and repeat.
KEY FORM CUES
- ✓ Do not arch your lower back to lean forward; keep your pelvis tucked and spine tall.
- ✓ Squeeze the glute on the kneeling leg throughout the stretch to reciprocal-inhibit the hip flexor.
MISTAKES TO AVOID
- ✗ Do not hyperextend your lumbar spine to get deeper forward.
- ✗ Avoid letting your front knee collapse inward.
CONTRAINDICATIONS & WHEN TO AVOID
Do not perform this movement or modify strictly under clinical supervision if you have:
- Severe knee joint pain or patellar bursitis on kneeling leg (use thick cushion or standing variation)
Clinical Biomechanics & Evidence
This exercise protocol utilizes proven spinal mechanics: active core co-contraction (McGill stabilization), directional preference extension (McKenzie MDT), and non-compressive axial elongation to facilitate nutrient exchange in the avascular intervertebral disc matrix.