Sphinx & Prone Hip Extension (Restore Lumbar Curve)
strengthenlumbar
A video demonstration is coming soon. Follow the step-by-step instructions below.
How to do it
- Lie prone and prop onto the forearms in the sphinx position to extend the lumbar spine.
- Hold a comfortable extension and breathe.
- Progress to prone single-leg hip extension: lift one straight leg ~10 degrees, keeping the pelvis down.
- Alternate legs; also actively practice leaning back through the day.
Form cues
- Lift the leg, not the lower back, to bias the erectors
- Keep extension gentle and pain-free
Dosage
Sphinx hold 2 min/day; leg lifts 10 reps each side
Muscles worked






Stretches: abdominals, hamstrings, glutes
Strengthens: erector spinae, iliopsoas, rectus femoris
Target muscles
Related exercises
Reference: Postural Correction (Johnson) p.102-103