The present invention relates to an exercise load controller and a lumbar joint rehabilitation exercise apparatus using the same, and more particularly to an exercise load controller, which can perform torque production, brake control, and other controls by combining DC motors, a powder clutch, and an amplifier, and a lumbar joint rehabilitation exercise apparatus constructed using the same. The exercise load controller is constructed to amplify and use the inherent torque with a rated capacity provided by a DC motor and the basic brake power of a power clutch through an amplifier with an amplification rate for the interlocking. A pelvis/thigh holder, a footstool, and a pelvis back holder are controlled using DC motors having sub-functions and a holding support controller for controlling these motors so as to allow control with an accurate control force to suit the physical state and the intensity of exercise of the user. The exercise load controller and an integrated controller for controlling it are adopted and constructed so that it is possible to perform automatic adjustment and selection according to real-time changes of the intensity of exercise of the user using feedback or to allow adjustment by the operator to suit the state or situation and it is thus possible to dynamically handle the exercise load that is based on the exercise angle range, muscular strength, and the like of the user, thereby maximizing the exercise efficiency.
LOAD CONTROLLER AND THE LUMBAR EXTENSION EXERCISE APPARATUS USING THE LOAD CONTROLLER