A therapy aid device for improving rotation of shoulder complex is provided. The device includes an upper portion and a lower portion joined together by an angled connector. The upper portion is configured to attach to a user's upper arm and the lower portion is configured to attach to the user's lower arm. The lower portion may also be configured to keep a user's hand in a flexed angled position. Using the device, the user may rotate the shoulder and move while keeping the upper and lower arms and wrist in specific positions. For example, the user may rotate his shoulder such that the user's hand and forearm move away from the torso while the elbow generally remain in the same location.
