scapulohumeral การใช้

What does " scapulohumeral rhythm " mean in plain English?
Links can help, but linking " scapulohumeral rhythm " to rotator cuff, for example, may not be enough.
The movement of the scapula across the rib cage in relation to the humerus is known as the " scapulohumeral rhythm ", and this helps to achieve a further range of movement.
Additional range of motion in shoulder flexion ( typically up to 180 degrees in humans ) is also accomplished by the great mobility of the scapula ( shoulder blade ) through a process known as scapulohumeral rhythm.
*The one sentence that is sourced in the lead says, " Scapular winging has been observed to disrupt scapulohumeral rhythm, contributing to decreased flexion and abduction of the upper extremity, as well as a loss in power and the source of considerable pain . " The source supports the claim.