Patent ID: 6676577
Filing Date: 2004-01-13
Classification: A63B,Y10S

Abstract:
A closed chain quadriceps exercise apparatus, comprising:a frame configured to rest upon a floor surface; a back rest mounted on the frame; a foot platform mounted on the frame in front of the back rest, wherein the back rest and the foot platform are configured and arranged to support a person in a rest position with his back against the back rest, his thighs extending perpendicular to his torso, his knees bent, and his feet flat on the foot platform, and at least one of the back rest and the foot platform is movably mounted on the frame in a manner that maintains an orthogonal angle between the person's thighs and torso as the person straightens his legs at the knees while pressing his feet against the foot platform; and a resistance means for resisting straightening of the person's legs at the knees by resisting an accompanying increase in an angle defined between a line extending normal to a back engaging surface on the back rest and a line extending normal to a foot engaging surface on the foot platform.