Shoulder Range of Motion Test Frame

An interest in shoulder kinematics, primarily the shoulder joint, has led to many literature studies and bio-mechanic research to establish what actually occurs within the glenohumeral joint upon various degrees of motion. The purpose of this study is to depict the pressures being exerted on the glenoid region of the scapula as the humeral head of the humerus undergoes motion, respectively. To simplify the study of our project, our group aims to simulate the abduction/adduction motion of the shoulder joint by simulating the mechanics of the rotator cuff. Key factors that control shoulder range of motion (in terms of Abduction and Adduction) will be investigated in terms of specific muscles involved and their respective dynamic forces required to simulate the desired motions of the human anatomy. Worst case scenario testing can be developed to look at overloaded conditions, commonly experienced in various activities that cause stress to the glenohumeral joint. This study will lead to the development of orthopedic hardware testing for shoulder implants and orthopedic hardware as we can create a test frame to determine the pressures at various points of interest within the glenohumeral joint.