Manual stretching of scalenes, levator scapulae, pectoralis minor. Pdf assessment of scapulohumeral rhythm for scapular. They also blend with the joint capsule which also assists to reinforce the joint capsule. Pectoralis major transfer for treatment of serratus anterior dysfunction in the setting of long thoracic nerve palsy. The purpose of the scapulohumeral rhythm is twofold. Scapular, humeral and spinal orientations were measured at 100 hz using a multisensor, 6degreeoffreedom electromagnetic tracking system. When there is a change of the normal position of the scapula in relation to the. Thirtytwo healthy women performed unilateral and bilateral arm elevations in three planessagittal, coronal and scapular.
Proper scapulohumeral rhythm is important for shoulder movement because it rotates the glenoid shoulder cavity so that the head of humerus can be in an ideal position for overhead movements. Smidt, ph d, pt esistance uring elevation of the scapular plane f or over a century, studies of the mechanism of the shoulder joint have at tempted to describe the global motion capacity of the shoulder and explain the com. Scapulohumeral rhythm and associated spinal motion. Pectoralis major transfer for treatment of serratus. Pdf the scapulohumeral rhythm quantifies shoulder joint coordination. This interaction is important for the optimal function of the shoulder. First, it allows the glenoid fossa to maintain a good position for the various movements of the head of the humerus. It may increase the functional deficit associated with shoulder. The scapulohumeral muscles are muscles that connect the scapula to. Pdf scapular dyskinesis and its relation to shoulder. Scapulothoracic muscle fatigue associated with alterations in scapulohumeral rhythm kinematics during maximum resistive shoulder elevation. Scapulohumeral rhythm for the entire arc of shoulder elevation was equal to a ratio of 2. Scapulohumeral rhythm also referred to as glenohumeral rhythm is the kinematic interaction between the scapula and the humerus, first published by codman in the 1930s.
Physio fitness physio rehab tim keeley 7,048 views 0. Disturbed scapulohumeral rhythm may be detected by seeing altered, jerky patterns of scapulohumeral movement. Pdf scapulothoracic muscle fatigue associated with. Pdf elucidating the scapulohumeral rhythm calculation. Excessive scapula movement may be due to decreased stability of the glenohumeral joint rotator cuff control, so th e client has to move the scapula to allow abduction of the arm. Second, the changing position of the glenoid fossa allows for a better lengthtension relationship in the muscles acting across the glenohumeral joint to produce shoulder motion. As in position 2 for lsst, manual load is applied in. Scapular dysfunction is found in as june 2006 strength and conditioning journal many as 68% of rotator cuff problems and 100% of glenohumeral instability diagnoses 4, 6, 8, sports medicine researchers have identified the best exercises to train or rehabil. Rotating the glenoid also helps the muscles surrounding the glenohumeral shoulder joint to coordinate lengthening and contracting for proper shoulder. The motion of these two joints is quantifiable with scapulohumeral rhythm shr. Describe the scapulohumeral rhythm questions and study.