Rotator Cuff Exercise Device Elbow Support Mechanism
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Solution Overview
Problem
Current exercise and physical therapy equipment fail to effectively isolate and strengthen the rotator cuff muscles due to compensatory motions caused by unsupported elbow positions, leading to inefficient upper extremity strengthening.
Innovation Solution
An exercise apparatus comprising a forearm cuff and pelvic plate that fixes the elbow at a perpendicular position to the body's vertical axis, allowing for isolated internal and external rotation of the humerus, thereby reducing compensatory motions and providing optimal strengthening of the rotator cuff muscles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the elbow is left unsupported during rotator cuff exercises, then the exercise equipment is simpler and easier to operate, but compensatory motions occur that reduce the effectiveness of rotator cuff strengthening
Solution Approach 1:
The patent introduces an elbow support mechanism as an intermediary component between the user's arm and the exercise environment. This support structure provides the necessary stabilization to eliminate compensatory motions during rotator cuff exercises, thereby resolving the contradiction between exercise simplicity and exercise effectiveness by adding a targeted support function rather than complexifying the entire system
2Measurement precision
If the elbow is fixed at a perpendicular position using the apparatus, then isolation of rotator cuff movements is improved, but the device complexity increases
Solution Approach 1:
The patent segments the support function into a modular elbow support component that can be independently adjusted and positioned. This segmentation allows the device to provide precise elbow positioning for movement isolation without requiring complex integration across the entire exercise system, thereby reducing overall device complexity while maintaining measurement precision
Solution Approach 2:
The elbow support mechanism incorporates dynamic adjustment capabilities that allow the support position and angle to be modified based on individual user needs and exercise requirements. This dynamic element enables precise movement isolation without fixed complex structures, resolving the contradiction between isolation precision and device complexity
Data Source
AI summary
An apparatus is designed to provide support and correct form in order to perform rotator cuff strengthening exercises, either for rehabilitation or prevention of injury. In an exemplary embodiment, a cuff holds a person's elbow fixed at a position substantially perpendicular to curved plate secured to and parallel to a person's vertical (i.e., longitudinal) axis at the person's torso, which helps isolate internal and external rotation of the humerus and reduce any compensatory motions that can occur when the elbow is not supported. This optimally strengthens these important shoulder movements which in turn allows athletes to improve their upper extremity strength.