Knee Flexion H45/K30
Setup
1: Lie prone with hips at 45° flexion (use 135 degree wedge as shown)
2: Adjust housing height and knee angle until housing is parallel with shank and cuff touching at level of lateral malleolus
3: Check knees are at 30° flexion and cuff flat against low calf / achilles
4: This position has been selected to test and strengthen the knee flexors (hamstrings) in the most common position in which hamstring injuries occur during locomotor sports
Cues
1: Test unilaterally, with opposing leg relaxed
2: Feel fatigue/work in belly of hamstring
3: Maintain lumbar and pelvic posture throughout
4: Build to maximum force over 5 seconds
