Vol. 8, Issue 9, Part C (2022)

Introduction: The shoulder joint is a complex joint. It consists of a web of soft tissue structures which connect the joints and permit mobility within its limits. The biomechanics of shoulder joint is complicated since the shoulder joint complex consists of 4 joints. The GH joint is one of the most mobile joints in the body which has 6 degrees of freedom and hence it is very important to stabilize it. Scaption is a functional movement pattern involved in shoulder biomechanics and is an excellent exercise for muscle strengthening.

Purpose of the study: To measure the scaption angle of the scapula at three different levels.

Case description: The subject is asked to sit on a high stool with hips and knees flexed and after palpation at the superior, mid and inferior level by flexing the patient's arm at 30 degrees and the thumbs positioned upward; the planes of the scapula and humerus are aligned and are measured.

Method: The study population includes normal subjects of all ages who will be participating in this study for the duration of 3 months. Arbatary sampling was done with a sample size of 30 subjects. (May increase or decrease depending upon intra class correlation values).

Conclusion: This study concludes that the digital protractor is a device that has reliability values ranging from moderate to very good.