A gravity sled exercise machine comprising:
- a frame support structure having a horizontal frame member with a front end and a back end;
- a vertical frame member having two upright pieces joined at the top end with a perpendicular tee bar;
- a middle section joined with upper and lower spacer angles;
- a bottom end with means for joining said vertical frame member to the back end of said horizontal frame member;
- a frame support structure to include a biangular arrangement of lineal rail members, consisting of an upper rail, angularly inclined in vertical orientation, with a top end and a bottom end;
- and a lower rail, angularly inclined in horizontal orientation, with a front end and a back end;
- said lower rail having an eyelet receptacle attached near the front end;
- means for joining said rail members to said vertical and horizontal frame members;
- a two piece torso support sled engaged in multiangular movement on said upper and lower rail members;
- a seat truck component of said support sled having a front end and a back end with tow bar receptacle attached to the front end;
- a seat truck tracking means reciprocally engaged in lineal motion on said lower rail to produce fixed angle support of said sled seat truck;
- a tether with attachment means for limiting the reciprocal movement of said seat truck on said lower rail;
- a back rest component of said support sled to include a frame having a top end with a U bracket and guide support means engaged to travel on said upper rail, a bottom end with axial support means to provide pivotal connection to the back end of said seat truck;
- said guide support means in kinematic interaction with said axial support means to provide curvilinear motion with angular adjustment of said back rest during the ascent and descent of said torso sled;
- a backrest component of said support sled having a headrest with integral pulley wing mounts attached the top end of said backrest component;
- a gravity hanger pivotally attached to said back rest U bracket to accept additional weightedness;
- a weighted lever assembly with pulley and line means for adding variable gravity to said torso support sled;
- means for coupling said line to said gravity hanger and to said frame support structure;
- means to pivot said lever on said frame support structure;
- a pulley lift means, having hand rings, pulleys, lines and enabling structure to include an offset pulley bracket and eye hanger mounted at each end of said vertical frame tee bar;
- a pulley lift means having an adjustable clamp means by which said hand rings are fitted to the reach of the exercise client;
- means for attachment of said adjustment clamp to said spacer angles of the vertical frame member;
- a pulley lift means wherein a person, reclining on said torso support sled and grasping said hand rings, could use arm motion to move said sled upward on said biangular rails from a horizontal angle of orientation to a vertical angle of orientation;
- a leg exercise means comprising a leg lever with a top end and an indexed bottom end, said bottom end having pivotal connection means to the front end of said lower rail;
- a foot cradle with pivot mounting means attached to the top end of said leg lever;
- a flexible coupling member with means for adjusting the length of said coupling member at the point of attachment to said leg lever;
- a tensioning spring with means for joining said spring to said leg lever and to the front end of said lower rail;
- a leg lever position indicator with pivotal means of attachment to the front end of said lower rail;
- and
- a leg exercise means whereby said leg lever is coupled by said flexible coupling means to either of two connective receptacles:
- attaching said coupling means to said eyelet receptacle at the front of said lower rail produces a static coupling and cooperative arm and leg interaction;
- attaching said coupling means to said tow bar receptacle produces a dynamic radial movement of said leg lever assembly and structures opposition of arm and leg forces.