Examining the effectiveness of PNF technique with Theraband Vs. Closed kinetic chain exercises for alleviating pain and enhancing functional status in individuals with Rotator Cuff Tendinopathy-A Pilot Study

Background: Shoulder dysfunction is a common musculoskeletal condition affecting daily functional activities, causing pain, reduced range of motion (ROM), and diminished strength. Theraband training and closed kinetic chain exercises are widely used rehabilitation strategies, but their comparative effectiveness remains unclear. This study aims to evaluate and compare the impact of these two exercise modalities on pain, ROM, muscle strength, and functional outcomes in individuals with shoulder dysfunction. Methods: A randomized controlled trial was conducted involving 30 participants with shoulder dysfunction, divided equally into two groups: PNF training with Theraband (n=15) and closed kinetic chain (n=15). Baseline and post-intervention assessments were conducted, including pain levels using the Visual Analog Scale (VAS), shoulder ROM across flexion, extension, abduction, adduction, internal rotation, and external rotation, muscle strength (measured in kg), and functional status using the Shoulder Pain and Disability Index (SPADI). Data were analyzed statistically to compare pre- and post-intervention results. Results: Both exercise groups demonstrated significant improvements in pain, ROM, strength, and functional status post-intervention (p<0.05). However, the Closed kinetic chain group exhibited superior outcomes in ROM and muscle strength compared to the Open kinetic chain group (p<0.001). Pain reduction and functional improvements were comparable between the groups, indicating the effectiveness of both modalities in addressing shoulder dysfunction. Conclusion: While both PNF training with Theraband and Closed kinetic chain exercises are effective in managing shoulder dysfunction, closed kinetic chain exercises demonstrated superior improvements in ROM and muscle strength. These findings suggest that closed kinetic chain exercises should be prioritized in rehabilitation protocols for patients with shoulder dysfunction.