Figure 2: (a) Illustrative model of the deformations of the two different tissues (tendon and skin) due to a stretch with respect to a common fulcrum to correct equinus. The size of the force exerted to deform individual tissue is inversely proportional to the distance between the tissue and the fulcrum. (b) Diagram of the medial side of a foot with the red line indicating the talus-Achilles length and blue line indicating the talus-skin length.