Abstract: An exercise apparatus particularly designed to strengthen the gluteus and hamstring muscles is disclosed. A pivot arm includes a weight arm which can be loaded with weights as desired. The pivot arm pivots in a longitudinal direction at one side of the base of the apparatus. The pivot arm includes a paddled hip engagement bar which extends over the base. A handhold member is mounted to the base and is pivotable at a right angle to the pivot movement of the pivot arm. A latching on the pivot arm can engage a catch on the handhold member when the apparatus to be placed is in a parked position.

Abstract: A weight lifting simulator exercises the hip girdle and shoulder girdle. A user standing on an inclined foot plate grabs a pair of handles which are free to swivel and raises a head member which slides along an upright mast which is slightly inclined toward the user positioned on the foot plate.

Abstract: Exercise apparatus for strengthening the triceps, deltoid and pectoral muscles. A moveable yoke is dual hinged to an upright support mounted to a base. The yoke has a pair of spaced apart levers each perpendicularly fixed to a weight moment arm. Free weights may be attached to the weight moment arms. The yoke may be rotated about a vertical axis over a limited non-symmetrical range from a park position to an operating position. The yoke is also pivotable about a horizontal axis in the operating position. A seat and back rest are supported on the base spaced apart from the upright support.

Abstract: Exercise apparatus for strengthening the arm, shoulder, and back muscles. A weight bearing bar capable of holding free weights is moved through a path as the user draws a pair of elongate handles over the front of the body. As the weight bearing bar is moved, the moment arm of the weight is reduced, thereby reducing the effort required to draw the elongate levers downward as the leverage of the user's muscles declines. The elongate handles are mounted to a moveable assembly which is rotatable over a limited range and also is pivotable toward the user. The apparatus may be placed in a storage position when use is complete.

Abstract: Exercise apparatus for building strength in the lower extremities while reducing the risk of injury to knee joints. A weight-bearing lever is pivotable upon a first post located forward and to the side of a seat for the user. A second pivotable arm which has a cushioned leg bar mounted to it is pivotable about a second pivot point on the first post. A roller bearing extends from the pivotable arm and is received by a bearing race fixed to the underside of the weight-bearing lever. As the user moves the leg bar forward and upward, the roller urges the weight-bearing lever upward. The Rolling Fulcrum.TM. pivot support of the weight-bearing lever moves away from the user reducing the moment arm of the weight on the weight-bearing arm as the user's legs approach full extension at the knee.

Abstract: An improved exercise apparatus for muscles of the upper extremities, mid-back, and posterior shoulder girdle provides negative variable resistance as the muscles are contracted over a wide range of motion while maintaining proper joint alignment in the shoulders, elbows, and wrists. A movable weight carrying assembly has a transverse handlebar from the ends of which extend handle members which the user grasps to pivot the weight carrying assembly toward himself or herself while moving the arms from an outstretched position to a position with the elbows flexed, scapulae adducted, and the trapezius muscles contracted in a shrugging action. The weight carrying assembly is adjustable for varying heights of user.

Abstract: Exercise apparatus for building strength in the lower extremities while reducing the risk of injury to knee joints. A bench provides a surface on which a user may lie in a prone position. A pivot support member stands beside the bench. A weight-bearing lever is pivotable upon the pivot support member at a horizontal pivot located alongside the bench for the user. A second pivotable lever which has a cushioned leg bar mounted to it is pivotable about a second pivot point on the pivot support member. An arm depends below and perpendicularly to the second pivotable lever. A roller bearing extends from the arm and is received by a bearing race fixed to the underside of the weight-bearing lever. As a user lying prone on the bench moves the leg bar upward by flexion of the leg muscles below the knee, the roller urges the weight-bearing lever upward. The Rolling Fulcrum.TM.

Abstract: Exercise apparatus for strengthening the legs and hips of a user. A weight carrying pivot arm rides up and down a pivotable mast when the user squats and rises, causing the resistance of the apparatus to increase as the user approaches a standing position. An optional toe plate may be added to allow exercise of ankle and foot structures.

Abstract: Exercise apparatus for strengthening the legs and hips of a user. A weight carrying pivot arm rides up and down a pivotable mast when the user squats and rises, causing the resistance of the apparatus to increase as the user approaches a standing position. An optional toe plate may be added to allow exercise of ankle and foot structures.