Patent ID: 7125340

Claim:
A method of exercising a weaker of two muscles used by a person when moving an implement, wherein, if the two muscles were of appropriate strength, the two muscles would desirably apply opposing forces in substantially opposite directions to the implement to maintain the implement in an ideal motion path, the method performed using a muscle trainer comprising a body and a grip disposed on the body, the method comprising: (a) the person moving a device having characteristics of the implement in an actual motion path; (b) determining an orientation of the actual motion path of step (a) relative to the ideal motion path; (c) the person grasping the grip of the muscle trainer with at least one of the person's hands; (d) when it is determined in step (b) that the actual motion path of step (a) deviates from the ideal motion path, applying a force to the muscle trainer body to urge the muscle trainer body further in the direction of deviation from the ideal motion path, where the applied force is independent of any force generated due to movement of the muscle trainer by the person; and (e) the person moving the muscle trainer in an actual motion path while steps (c) and (d) are performed.