The normal contribution of the ST joint is generally expressed as the ratio of ST movement with regards to that occurring simultaneously at the GH articulation. The scapulohumeral rhythm is quantified by dividing the total amount of shoulder elevation (humerothoracic) by the scapular upward rotation (scapulothoracic).

Normal kinematics of the shoulder are believed critical to preserving the subacromial space and preventing impingement during arm elevation. The length-tension relationship and load of the rotator cuff and scapular muscles and tendons are also …

Rotator cuff arthropathy with loss of active arm elevation can be successfully treated with nonanatomic reverse total shoulder arthroplasty to restore active elevation. Shoulder kinematics in this context predominantly focus on glenohumeral motion, ...

For the shoulder to move properly, there needs to be good range of motion both at the shoulder joint and the shoulder blade, as well as good strength and flexibility in all the shoulder muscles.

2016年8月21日 · There is increasing appreciation that there is a wide variety of factors that affect shoulder range of motion. This chapter will discuss traditional methods of measuring shoulder range of motion and critically examine them in light of new biomechanical and clinical knowledge.

Given the weight-bearing demand and shoulder elevation of an exercise in determining scapular-stabilizer activation levels, the purpose of our study was to examine the effect of shoulder position on scapular kinematic patterns in a traditional push-up.

2024年3月21日 · The average extension (or posterior elevation) of the shoulder is approximately 60 degrees, and the maximum range is limited by capsular tension. The posterior and middle heads of the deltoid are the prime movers for extension of the arm. The supraspinatus and subscapularis are continually active throughout arm extension to

2013年9月30日 · To compare scapular kinematics between active and resisted shoulder elevation performed in the sagittal (flexion), frontal (abduction), and scapular (scapular abduction) planes.

2021年9月4日 · Body postures affect shoulder kinematics during humeral elevation. This knowledge will be useful to optimize rehabilitation exercises and for diagnostic insight. Keywords: Shoulder kinematics, Scapular kinematics, 3D analysis, Scapulohumeral rhythm, Supine, 3D/2D registration technique, Fluoroscopy.

2016年9月8日 · According to Dempster, six actions occur at the sternoclavicular joint: elevation, depression, protrusion, retraction, and upward and downward rotation. 1 The amount of potential motion present at this articulation has been studied by disarticulating the scapula.