Leg extension, leg curl, hip, thigh, back and buttocks machine

摘要

Disclosed herein are devices which are characterized in their ability to isolate a specific lower body muscle and by working against weights through a system of pulleys and cams, provide concentrated development of that specific lower body muscle. The mechanisms described hereinafter include a place to accommodate the machine user, a substantially cylindrical cushioned element oriented for engagement by the users legs, and a cable and gearing network including chain and cam and pulley mechanisms associated with weights the magnitude of which are selectable so that the work done against the weights focuses on a specific lower body muscle depending upon the orientation of the user and additionally provides an orientation of the weights relative to the user such that any sudden release of the load or work being done against the weights can in no way engage and harm the user.