A rotator cuff therapy device assists a user in accomplishing orbital motion of the users arm to provide a therapeutic effect that strengthens and rehabilitates the arms, shoulders, and related joints and tissues. The device may be adjustable so that an unevenly-weighted rotatable portion can be moved along a desired path with varying speed and effort according to a pre-selected friction setting, and while being held in different positions relative to the users body. This allows the device to be used by people with varying degrees of dexterity, strength, or injury, while targeting different tissues for therapy.
