Friction at the residual-limb socket interface affects amputees' comfort since it has a direct
impact on the pain and functionality of the prosthesis. In this research, the coefficient of
friction was measured at the volar forearm and three regions of the transfemoral residual
limb (ie, pressure tolerant, pressure sensitive, and scar region). The socket internal texture
was replicated on a probe made of polypropylene to resemble the interface conditions.
Besides the anatomical location, the presence and absence of sweat at the interface were …