Supporting and Stabilizing the Scapulohumeral Rhythm With a Body- or Robot-Powered Orthosis

The versatile functionality of the human upper limb is owed to coordinated rotation scapula and humerus, a pattern called scapulohumeral rhythm (SHR). Various medical conditions can alter SHR, frequently leading limitations in activities daily living. However, date, supporting SHR practice often not feasible. We present textile orthosis that assists both stand-alone use combination with ANYexo, therapy exoskeleton, or Myoshirt, an assistive exomuscle. Orthosis comprised harness interface was coupled arm promote scapular upward rotation. In technical evaluation including four participants without impairments one partial hemiparesis, followed desired average deviation less than 5°, thus providing accurate support guidance towards physiological SHR. substituted for ≤ 42.0 % normal forces, 19.6 tangential forces required stabilization rotation, sufficient patients remaining muscular function. At last, provides practicable life, during conventional therapy, robots.