Biomechanical changes at shoulder girdle among the frozen shoulder patient attended at CRP

Abstract

Purpose: The purpose of the study was to explore the biomechanical changes at the shoulder girdle among the frozen shoulder patient attended in CRP. Objectives: To find out the variation of active range of motion among the patient with frozen shoulder, to evaluate changes of muscle contraction, to check out the severity of muscle wasting, to distinguish any alteration of bony alignmentand to identify any alteration in gleno-humeral rhythm. Methodology: A quantitative research model in the form of a cross sectional type survey in design is used also with a simple random sampling technique. Results: Most (60%) of the participants (n=18) with frozen shoulder had 67% loss of active shoulder lateral rotation, 80% participants (n=24) had 33% loss of active shoulder abduction, 70% articipants (n=21) had 33% loss of active shoulder medial rotation and about 57% participants (n=17) had 33% loss of active shoulder flexion. About 87% participants (n=26) had Grade-4 muscle contraction in their shoulder lateral rotator. Another muscles- shoulder abductor, medial rotator and flexor had normal Grade-5 muscle contraction. 7% participants (n=2) had mild (less than 5mm) abductor muscle wasting and muscle wasting occurred due to inactivity or in case of chronic frozen shoulder patient. Left shoulder elevation (13%, n=4) was more common than right shoulder (7%, n=2). Left shoulder was rounded in most of the participants (10%, n=3) than right shoulder (3%, n=1). Left side scapular elevation (14%, n=4) was more common than right side (3%, n=1). Chance of Subluxation or dislocation is less in frozen shoulder patient, only 13% participants (n=4) had positive anterior apprehension test. Moderate (1.5:1) glenohumeral alteration found in maximum (80%, n=24) case. Conclusion: From this study some things can be concluded that- frozen shoulder patient have variation in active range of motion, changes occur in muscle power, sometimes muscle wasting is also seen in shoulder abductor group, bony alteration also common and alteration of gleno-humeral rhythm also seen.