1 : Lie supine, sacrum centred over the middle gridline on the base mat. Position hips at 0° flexion.
2 : Adjust housing height to align flat pad with apex of medial femoral condyles.
3 : Feet in line with knees/hips and patella (knee caps) pointing to the ceiling.
4 : Record height of top of carriers for future reference.
1 : Test bilaterally.
2 : Squeeze into pads, pulling upper thighs together.
3 : Maintain lumbar neutral, flat/still sacrum and abdominal wall flat/hollow.
4 : Discourage gluteal contraction (buttock squeeze).
5 : Feel fatigue/work in the adductor group.
6 : Build to maximum force over 5 seconds.