Moment and angle measurement set up and example of dissected origin of human gastrocnemius muscle and glenoid cavity. A. The foot strapped to the foot plates, to which also the torque wrench is attached. The gonio meter is used for measuring the angle with the horizontal. The tip of the arrow indicates the location of a reference point used for quantifying the moment measured. B. Medio-dorsal view of the dissected of human cadaver popliteal fossa and gastrocnemius muscle. Two needles (green attachments) are inserted on the most prominent point in dorsal direction of lateral and medial condyles, respectively. The tip of the scalpel inserted indicates the target point for describing the path of GM. Note that by taking this point as the closest obtainable estimate for the origin of GM a small length of GM proximal to the marked point is neglected in SCP and TD subjects. The ruler indicates a scale of cm and mm.