Abstract: An exercise machine comprising a base, a horizontal turntable mounted on the base to rotate about a vertical axis, and two hydraulic assemblies each connecting the turntable to the base. The outboard portions of the hydraulic assemblies are mounted on upstanding base studs affixed to and spaced 2" inwardly from the rim of the base, using adjustable sleeves threadably engaging the outboard distal ends of the pistons of the hydraulic assemblies. The base studs are angled 721/2.degree. to either side of the support affixed to the base. The inboard ends of the hydraulic assemblies are affixed to studs depending from the turntable about 5" radially outwardly from the turntable's rotational axis. The turntable studs are positioned angularly 120.degree. to either side of the center line of the turntable. The resistance against rotation of the turntable increases sinusoidally when the turntable's center line is 471/2.degree.

Abstract: The present invention is a torso building exercise machine including the following elements: (a) a stationary base; (b) a horizontally disposed rotatable turntable mounted generally centrally of the base, the turntable having a single degree of freedom about its vertical axis; (c) at least one tank-like compartment for holding an adjustable amount of liquid located near the periphery of the turntable; and (d) an upright stationary stanchion mounted on the base, the stanchion carrying an array of horizontal handholds at various vertical levels and selectively grippable by a person while performing various torso twisting exercises on the turntable.

Abstract: One embodiment of the present invention is a torso building exercise machine including the following elements: (a) a stationary base; (b) a horizontally disposed rotatable turntable mounted on the base, the turntable having a single degree of freedom about its vertical axis; (c) posts for holding adjustable weights located near the periphery of the turntable; and (d) an upright stationary stanchion mounted on the base, the stanchion carrying a headrest and horizontal handholds in curved array at various vertical levels and selectively grippable by a person while performing various twisting exercises on the turntable.