Abstract: An exercise device for uniformly developing and conditioning the parts of the body. The device has a body support unit, an exercise loading unit, a leg support unit, a knee support unit, a reaction restraining unit and a back plate support unit and develops and conditions muscles by providing multidirectional exercises, i.e., upward, downward, frontward, backward, inward and outward exercises, for the upper and lower body. Particularly, this device easily efficiently provides a simple walking exercise of legs as well as a calf muscle exercise according to an ankle exercise, a thigh muscle exercise according to a knee exercise, an abdominal muscle exercise according to the thigh muscle exercise and etc. The exercise loading unit of this invention can be easily located at various positions corresponding to several kinds of exercises.

Abstract: A device for controlling a pneumatic cylinder device, being of a double cylinder construction comprising an outer cylinder and an inner cylinder sealably fitted in the outer cylinder to slide along the outer cylinder. In the inner cylinder, a piston with a valve at one side thereof or valves at both sides thereof is slidably disposed. To control the valve or valves, an adjusting rod is provided which is slidably and rotatably disposed in the piston and its piston rod and adjusted by an operating lever. Alternatively, the double cylinder construction comprises a pair of cylinders disposed axially in parallel to each other. In the cylinders, pistons are disposed, one of which has a valve at one side thereof or valves at both sides thereof. The cylinders are communicated with each other by a communication construction having a communication adjusting groove and an adjusting lever for adjusting the communication area of communication adjusting groove.