PREVALENCE OF GLENOHUMERAL INTERNAL ROTATION DEFICIT ON RECREATIONAL BADMINTON PLAYERS, VOLLEYBALL PLAYERS AND TABLE TENNIS PLAYERS OF GANGTOK

Dr. Priyanka Kalita (PT)

ABSTRACT

Background: Glenohumeral Internal Rotation Deficit (GIRD) is a condition in which there is loss of Internal Rotation in the throwing shoulder. GIRD can be defined by a loss of >20° of internal rotation as compared to the contralateral shoulder. Overhead throwing games usually affects joints and tissues of shoulder as it places high loads and stresses on it. Aim: To compare the prevalence and severity of GIRD among Volleyball, Table Tennis and Badminton players of Gangtok. Method: Measurements of passive ROM of Glenohumeral GER and GIR were taken with a bubble inclinometer. IR was measured first followed by GER and the sum of GIR and GER was done to find TAM. All the assessments i.e. GIR, GER and TAM were done in supine lying. In this position, examiner was first position the shoulder and elbow at 90º of abduction and flexion, respectively. The inclinometer was placed on the dorsal surface of the forearm. The Individuals were asked to relax. Then, the shoulder was passively rotated into GER or GIR depending on the randomization. Once the maximum range achieved, the measurements were read and recorded by examiner. TAM was calculated by summing ER and IR ROM tested position. Results: In this study the mean GIRD value for Badminton is more than TT and Volleyball as Badminton is predominantly an overhead sport compared to Volleyball & TT. In the graphical representation it is seen that comparison of Internal Rotation, External Rotation and Total Arc of Motion of right and left side in Badminton is more than Volleyball and Table Tennis. Conclusion: This study allows us to conclude that Gleno humeral ROM adaptation is sport specific and is seen more in Badminton as compared to the Volleyball & TT players.

Keywords: GIRD, GIR, GER, TAM, ROM.