Abstract: An exercise resistance mechanism provides resistance to unwinding of a flexible line from about a reel. In a preferred embodiment, an arbor is mounted on a shaft by a one-way clutch in such a manner that the arbor rotates in one direction together with the shaft, and rotates in a second, opposite direction relative to the shaft. A first portion of the arbor is connected to an end of a spring extending from a recoil spring pack. A second portion of the arbor is connected to the reel in such a manner that the reel rotates together with the arbor. The arbor and spring end are in full view during assembly of the resistance mechanism. Two holes are provided near the hub of the reel so that a replacement line can be secured to the reel while the original flexible line remains connected thereto and provides a handle for maintaining tension in the recoil spring.

Abstract: The present invention provides an apparatus that selectively facilitates exercises that approximate the motions involved in walking and cross-country skiing. A base extends from a front end to a rear end, and a treadmill is operatively mounted relative to the base. Each of a pair of foot skates is selectively placed in rolling engagement with an upwardly facing portion of the treadmill or upper treadmill surface. Each of the pair of foot skates includes a one-way clutch roller for rolling forward relative to the upper treadmill surface and preventing rolling rearward relative to the upper treadmill surface. Thus, rearward movement of either skate requires coincidental rearward movement of the upper treadmill surface.

Abstract: The present invention provides a flexible line guidance and tension measuring device for use on an exercise apparatus to guide a flexible line from a resistance mechanism to an exercise member and measure tension in the flexible line. A fixed member is operatively secured to the exercise apparatus, and a movable member is movably mounted to the fixed member. The flexible line passes over a load bearing pulley rotatably mounted on the movable member. Tension in the flexible line causes the movable member to move relative to the fixed member, and an incremental deflection measuring means measures the relative movement.

Abstract: An exercise device (1) capable of performing three discrete exercise activities, and including a treadmill (9) suitable for simulating a running or walking exercise, and further including a pair of slidable foot restraints (34, 35) mounted within rails (56, 57) adjacent to the treadmill (9) in order to simulate a cross country skiing exercise. A pair of reciprocating, pivotable foot paddles (58, 59) are cooperatively attached in a first embodiment to pneumatic cylinders (89, 90), while in a second embodiment are cooperatively attached to conical resistance mechanisms (112, 113) so as to simulate a stair climbing activity. A pivotable torso support (11) is provided to assist the balance of a person performing any of the three exercise activities.

Abstract: The present invention provides an apparatus 100 of a type on which a person 190 receives back therapy. The apparatus 100 includes a frame 101 designed to rest upon a floor surface 109. A support member 102 is pivotally mounted to the frame 101 above the floor surface 109, and a pelvic belt 103 is secured relative to the support member 102. In operation, the pelvic belt 103 stabilizes the person's pelvis relative to the support member 102, and the support member supports some portion of the person's torso including the pelvis. The support member 102 pivots among several positions, including a mounting position suitable for mounting by a person, and a locking mechanism 104 secures the support member 102 in any of a plurality of back therapy positions.

Abstract: A multiple exercise unit capable of providing a user with a wide range of strength and conditioning exercises. The exercise unit provides resistance through an isokinetic device which utilizes a clutch mechanism. Lines extend out of the isokinetic device and attach to various exercise elements such that a variety of upper and lower body strength exercises may be performed.

Abstract: Disclosed is a rowing machine (10) having two resistance mechanisms or flywheels (44, 49). The dual resistance is applied through the movable handle (19) and movable seat (12). The handle (19) is interconnected by means of a cord (28) to the first flywheel (44), and the seat (12) is interconnected by means of a cord (29) to the second flywheel (49). The seat (12) is mounted upon an inclined track (11) and is anatomically contoured. The resistance mechanisms (44, 49) are adjusted by means of drag straps (53, 54) and an adjuster (55). The inclination of the track (11) and the position of the foot plates (23) is adjustable.