Patent ID: 7150702

Claim:
An exercise machine for performing leg curl and leg extension movements, comprising: a frame configured to rest on an underlying surface; an upper leg-supporting assembly pivotally interconnected with the frame, the upper leg supporting assembly having a seat pad; a torso-supporting assembly pivotally interconnected with the frame and with the upper leg-supporting assembly, the torso-supporting assembly having a backrest pad; a leg curl assembly arm pivotally interconnected with the frame about a first pivot axis; a leg extension assembly arm pivotally interconnected with the frame about a second pivot axis; a resistance-imparting unit coupled with the leg curl movement arm and the leg extension movement arm; and a conversion mechanism interconnected with the frame and at least one of the torso-supporting assembly and the upper leg-supporting assembly, the conversion mechanism being configured to move the torso-supporting assembly and the upper leg-supporting assembly between a leg extension position, in which the seat pad and the backrest pad combine to form a backrest and seat for a seated exerciser, and in which the second pivot axis is positioned in front of a front edge of the seat pad, and a leg curl position, in which the seat pad and backrest pad combine to form a curl platform for a prone exerciser, and in which the first pivot is positioned above a plane defined by an upper surface of the seat pad.