HARP line tool

However, the distance from hip center to ankle 1. measures what the knee angle is, flexion/extension 2. measures hip flexion/extension 3. measures the effective spatial orientation to the floor 4. scales everything to patient stature 5. measures (in cms, inches, or statures) forward progression 6. measures (in cms, inches, or statures) clearance contribution All this from the same data as knee angle. So we have the hip to ankle line relative to the room... Hip Ankle Relative Positioning. HARP