Patent ID: 7282015

Claim:
Exercise apparatus for resistance training comprising a cable trained around a pulley and coupled to a resistance for resisting a given user motion, said pulley having a camming profile providing a load curve in a plot of force versus displacement, such that resistive force opposing said user motion varies during such motion according to said displacement, said pulley having an adjustable camming profile for changing said load curve, wherein said pulley is eccentrically mounted on a shaft for rotation about a rotation axis, the eccentricity providing said camming profile, and comprising an adjustment mechanism comprising a first member mounted to said shaft, and a second member mounted to said pulley, said first and second members being movably coupled to each other to change said eccentricity according to movement of said second member relative to said first member, wherein said pulley is translational across said shaft in a direction transverse to said axis to change said eccentricity, said second member being translationally movable relative to said first member along said transverse direction, and wherein said pulley has a slot receiving said shaft extending axially therethrough, said pulley slot having an extended dimension along said transverse direction receiving said shaft at a plurality of translational positions therealong.