Hip Extension
Setup
1: Lie prone, pelvis centred on middle gridline on base mat. Hips at 30° flexion (use foam roller or similar to position hip). Knees at 60° flexion (use plyometric box to position shank)
2: Adjust housing height and subject position to align the flat pad immediately above popliteal crease (back of knee).
3: Fine tune housing rotation to ensure flat pad is providing good contact and the sensor arm is at right angles to the femur.
4: Place plyometric box under shin to achieve 60° flexion at knee
5: Depending on width of pelvis subject may need to fine tune position by sliding hips slightly to left or right to keep thigh in neutral in frontal plane and make contact with sensor
Cues
1: Test unilaterally. Opposing thigh can apply counter pressure to floor
2: Extend hip by lifting thigh from floor to squeeze pad
3: Maintain neutral spine. Focus on activating gluteus maximus to extend hip
4: Build to maximum force over 5 seconds
