Patent ID: 7766760

Claim:
A muscle trainer for exercising rotational muscles used by a person in gripping and moving an implement in performance of a useful or recreational function, wherein if the rotational muscles were of appropriate strength, the rotational muscles would desirably apply appropriate rotational forces to the implement to maintain desired rotation of the implement as the implement is gripped and moved by the person, the muscle trainer thereby training the rotational muscles to consistently maintain desired rotation of the implement during performance of the useful or recreational function, the muscle trainer comprising: a body having a first section extending in a first axial direction and a second section joined to the first section at a juncture, the second section extending in a second axial direction that is different from the first axial direction; and a force generator located on the second section and positioned for urging the second section of the body in a third direction which is different from the second axial direction, thereby creating a rotational force about the first axial direction.