1. An exercise assembly comprising: a) a frame; b) a single resistance source; c) a base pivotally attached to said resistance source; d) a first pulley connected to said frame; e) a second pulley connected to said base; f) a first cable disposed around said first and second pulleys and connected to said frame; g) a third pulley connected to said frame; h) a fourth pulley connected to said base; and i) a second cable disposed around said third and fourth pulleys and connected to said frame.