Physiotherapy clinic in Tambaram Are you...

Physiotherapy clinic in Tambaram Are you Looking for Physiotherapy Treatment in Tambaram, Sunshine Super Speciality Physiotherapy Clinic, We Provide Electrotherapy, Exercise and Manual Therapy, Orthopedic, Neuro, Cardio, Pediatric, Sports and Geriatric Rehabilitation, Post Operative Physiotherapy Treatment, Fracture Rehabilitation, pain free movement. Scapula Kinematics in Shoulder Elevation🙋🙋‍♂️ https://pubmed.ncbi.nlm.nih.gov/30797676/ 👉 The trapezius and serratus anterior act synergistically to produce many actions of the scapula or clavicle (Fig. 1 & 2, https://pubmed.ncbi.nlm.nih.gov/30737019/, https://pubmed.ncbi.nlm.nih.gov/30797676/), typically associated with flexion or abduction of the shoulder. From a broad functional perspective, the trapezius may be considered a dominant stabilizer of the scapula, while the serratus anterior a dominant mover of the scapula, although considerable overlap exists in these generalized functions. 👉 As the arm is elevated during abduction or flexion, the scapula upwardly rotates, internally/externally rotates, and posteriorly tilts. https://pubmed.ncbi.nlm.nih.gov/10696154/, https://pubmed.ncbi.nlm.nih.gov/11408911/, https://pubmed.ncbi.nlm.nih.gov/19181982/, https://pubmed.ncbi.nlm.nih.gov/22388171/, https://pubmed.ncbi.nlm.nih.gov/25103135/ 👉 By far, upward rotation is the most obvious and extensive motion, which can be verified by palpating the path of movement of the inferior angle of the scapula. Other more subtle accessory motions refine the position of the scapula as it upwardly rotates. Simultaneous with the upward rotation, for example, the scapula internally or externally rotates, depending of the plane of arm elevation and portion of the range of motion. https://pubmed.ncbi.nlm.nih.gov/19181982/ 👉 Internal and external rotations of the scapula are also commonly referred as to protraction and retraction, respectively. Although variable, the scapula tends to internally rotate slightly during flexion to project the glenoid fossa more anteriorly; slight external rotation typically occurs at the end range of flexion. Abduction closer to the frontal plane, however, is typically associated with slight external rotation of the scapula, which projects the glenoid fossa closer toward the frontal plane for better congruency with the abducting humerus. 👉The position of the upwardly rotating scapula is further refined by a posterior tilting motion. This relatively consistent motion takes the acromion posteriorly, away from the advancing humeral head. This is likely a mechanical strategy that favours an increase in the subacromial space, thereby reducing likelihood of excessive contact between humeral head and acromion or other soft tissues. 👉 Acting in concert with the serratus anterior (SA), forces produced by each of the three parts of the trapezius are essential to the fluid motion of the scapulothoracic joint and therefore the entire shoulder complex. 👉 Because the upper trapezius (UT) attaches distally only to clavicle, most of its influence on scapulothoracic mobility is due to forces applied directly to this bone. Contraction of the upper trapezius creates a strong elevation and a retraction pull on the clavicle at the sternoclavicular joint (Fig. 2A& B). https://pubmed.ncbi.nlm.nih.gov/23916077/, https://pubmed.ncbi.nlm.nih.gov/20888284/ 👉 The middle (MT) and lower trapezius (LT) produce scapular retraction by a direct translational pull on the bone. These muscles also externally rotate the scapula via a torque produced across the acromioclavicular joint (Fig. 2C). The external rotation force produced by the middle and lower trapezius is particularly important during shoulder abduction or flexion, as these muscles must offset the strong lateral translation (protraction) and internal rotation force produced by simultaneous activation of the serratus anterior. https://pubmed.ncbi.nlm.nih.gov/23916077/ 👉 The lower trapezius along with the serratus anterior are the primary upward rotators of the scapula (Fig. 2D), especially during the early and middle range of shoulder abduction. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6849087/ 👉 Although the middle and lower trapezius may partially assist with posterior tilting of the scapula, the primary muscle for this action by far is the serratus anterior (Fig. 2E). https://pubmed.ncbi.nlm.nih.gov/20888284/ SUNSHINE ® SUPER SPECIALITY PHYSIOTHERAPY CLINIC - #DrParthiban #Sunshinephysioclinic.in #Physiotherapyclinicintambaram #shoulderpain #impingementsyndrome DR.M.P. PARTHIBAN.M.P.T (Ortho), Chief Orthopedic Physiotherapist, Call for Appointments: - 9345122177 East Tambaram, CHENNAI