Correlation of scapular Dyskinesia and hand grip strength in students with smartphone addiction pursuing a bachelor's degree in healthcare profession education.

Abstract

Hand grip strength is a critical indicator of upper extremity function, especially important in healthcare professions. Effective upper extremity function relies on proximal stability from the scapula and distal mobility from hand actions. This study aimed to examine the relationship between scapular dyskinesia and hand grip strength in healthcare students with smartphone addiction. A descriptive cross-sectional study was conducted with 63 students with smartphone addiction. Scapular dyskinesia was measured using Lateral Scapular Slide Test (LSST) at neutral, 45 and 90 degrees. Hand grip strength was measured using the Jamar Hydraulic hand dynamometer. The Short version of Smartphone Addiction Scale (SAS-SV) questionnaire assessed the severity of smartphone addiction, while the Disability of Arm, Shoulder and Hand (DASH) questionnaire evaluated the impact on upper extremity function. A negative correlation was found between LSST at 45degrees and hand grip strength. However, no significant correlation was observed between SAS-SV, DASH, and scapular dyskinesia. Findings of the present study report a negative association between scapular dyskinesia at 45 degrees of LSST and hand grip strength. This suggests greater the scapular dyskinesis, lower will be the hand grip strength.