Abstract: The exercise machine in the present disclosure utilizes novel machine mechanics that accommodate and adjust to the spines shifting axis of rotation. Through the use of a multiple, articulating axes a back exercise machine or device that promotes pure and isolated spinal flexion and extension with no need for mechanical anatomical restraint to succeed has been created. Using these mechanics when users attempt to extend their trunk, the device adjusts to the natural shifting axis of rotation of the spine thereby dis-involving the contribution of the hip extensor muscles. In other works, the exercise back machine of the present disclosure is designed to accommodate the complex biomechanics of the spine and to facilitate targeted strengthening of the spinal erectors and deep intrinsic spinal muscles.

Abstract: The exercise machine in the present disclosure utilizes novel machine mechanics that accommodate and adjust to the spines shifting axis of rotation. Through the use of a multiple, articulating axes a back exercise machine or device that promotes pure and isolated spinal flexion and extension with no need for mechanical anatomical restraint to succeed has been created. Using these mechanics when users attempt to extend their trunk, the device adjusts to the natural shifting axis of rotation of the spine thereby dis-involving the contribution of the hip extensor muscles. In other works, the exercise back machine of the present disclosure is designed to accommodate the complex biomechanics of the spine and to facilitate targeted strengthening of the spinal erectors and deep intrinsic spinal muscles.

Abstract: Exercise equipment includes a stationary dock and a user support frame engaging the dock in docking relation, including application as a weight training rack and bench including a weight rack frame and a bench frame releasably lockable to the weight rack frame at a plurality of selectable locking locations therealong. A pair of collapsible spotter platforms are mounted to respective upstanding support posts.

Abstract: Exercise equipment includes a stationary dock and a user support frame engaging the dock in docking relation, including application as a weight training rack and bench including a weight rack frame and a bench frame releasably lockable to the weight rack frame at a plurality of selectable locking locations therealong. A pair of collapsible spotter platforms are mounted to respective upstanding support posts.

Abstract: Exercise apparatus for resistance training includes an adjustment mechanism raising and lowering a platform, e.g. a stand-upon platform supporting the feet of the user. The adjustment mechanism both: a) journals the platform to pivot about a pivot axis parallel to a first lateral axis into and out of engagement with a detent lock; and b) linearly guides translational up and down movement of the platform and prevents side to side canting of the platform about a second lateral axis.

Abstract: Exercise apparatus has a belt tracking pulley having a hub insert with an eccentric bore therethrough for changing tracking angle. The tracking pulley mounting structure has adjustable eccentricity.

Abstract: A method and apparatus for exercising the abdominal muscles where the exerciser is seated and the legs are spread apart and held in that position during the exercise which is accomplished by bending the upper torso forwardly and rearwardly through exertion of the abdominal muscles against a resistance offered by a weight stack. The machine includes a movement arm having a resistance pad engageable by the chest of the exerciser as the exerciser moves forwardly to perform positive work and rearwardly to perform negative work. The movement arm includes two parts one of which includes the resistance pad and is mounted to the other part by means of a spring mechanism so that the pad is spring mounted and may be moved to a raised position to allow easy entrance and exit from the machine. A cam fixed to the movement arm is connected to the weight stack pin by means of an actuating lever located below the weight stack.

Abstract: A lateral raise exercise machine having a movement arm pivotable about an axis extending in a horizontal plane but inwardly at an angle of about 25.degree. relative to the forward-rearward direction, a weight stack having at least one resistance weight, and transmission including a belt and pulley and a linkage interconnecting the movement arm and the weight to raise the weight when the movement arm is raised to a first position. The movement arm has a handle bar, mounted for adjustment about an axis which generally coincides with the axis of the humerus of the exerciser. A forearm pad is fixed to the handle bar to be adjustable together with the handle bar relative to the movement arm.

Abstract: A rotary torso exercise machine, including an upper torso engagement means comprising a back rest, a right side bar and a left side bar. The user hooks elbows around the side bars and presses his or her back against the back rest thereby immobilizing the shoulder muscles, isolating the torso rotation muscles for the rotation exercising movement allowed by the exercise machine.The invention also comprises a home style rotary torso machine wherein a base member supports a seat on which the lower torso is immobilized and the upper torso engagement means, with all working parts of the machine being mounted in or on the base.