Hip Flexion
Setup
1: Lie supine, sacrum centred over gridline on base mat. Hips at 60° (femur to match inclination of housing), feet flat on the floor.
2: Adjust housing height to align flat pad with distal femur (immediately above knee cap).
3: Plane of femur should be parallel to housing to ensure hip flexed at 60°. Pad should make flat contact with distal femur and feel comfortable with application of pressure.
4: Record height of top of carriers
Cues
1: Test unilaterally. Opposing leg's heel can apply counter pressure to floor
2: Slowly draw in femoral head and lift heel of test leg from floor to squeeze pad. Maintain lumbar neutral and flat/hollow abdominal wall. Opposing leg's heel can apply counter pressure to floor
3: Visualise tensioning the 'psoas guy-wire' between spine and inner thigh
4: Maintain pelvic position - keep sacrum flat and spine neutral
5: Monitor excessive transverse and sagittal plane and pelvic rotation
6: Build to maximum force over 5 seconds
