User force application device for an exercise, physical therapy, or rehabilitation apparatus

摘要

The present invention relates to a user force application device which will optimally be used with a computerized exercise, physical therapy, or rehabilitation apparatus, preferably, an apparatus which permits concentric and eccentric isokinetic exercise by a user. One embodiment of the user force application device comprises a main support structure; securing assembly for securing the main support structure in an exercise position desired by a user; a shaft having a cable end and a handle end, the shaft being received by the main support structure and moveable therein, the cable end and the handle end extending from the main support structure; controlling assembly for controlling movement of the shaft within the main support structure; a handle detachably connected to shaft handle end; and detachably connecting assembly for detachably connecting the shaft cable end to the tension transmitting device of an exercise apparatus. Preferably, the user force application device of this second embodiment is attachable to the securable "U"-shaped push assembly of the apparatus. Handle grips of different size and shape can be provided which can easily be attached to the handle end of the shaft. A cam follower in a helix are employed to restrict the push/pull and rotational movement of the shaft. The user force application device allows a user to perform various combinations of multiplaner movements of the joints from the shoulder to the fingers.