Abstract

Background: Hamstring tightness is a prevalent musculoskeletal condition, especially among young adults, leading to reduced flexibility, altered biomechanics and increased injury risk. Traditional management approaches include static stretching, while post-isometric relaxation (PIR) and myofascial release have gained attention for their potential synergistic effects. Objective: To compare the effectiveness of static stretching combined with remote myofascial release versus post-isometric relaxation combined with remotemyofascial release on hamstring flexibility in young adults with hamstring tightness. Methods: A total of 46 participants aged 18–25 years with hamstring tightness were randomly assigned into two groups: Group A (Static Stretch + Remote Myofascial Release) and Group B (PIR + Remote Myofascial Release). Outcome measures included the Sit and Reach Test, Active Knee Extension (AKE) Test, and goniometric measurement of hip flexion. Assessments were taken at baseline, after intervention, and at follow-up. Data were analyzed using paired and unpaired t-tests, with significance set at p < 0.05. Results: Both groups showed significant improvement in hamstring flexibility post-intervention (p < 0.05). Group B demonstrated a slightly greater improvement in AKE and Sit and Reach scores compared to Group A, though differences were not statistically significant. Conclusion: Both static stretching and PIR, when combined with remote myofascial release, are effective in improving hamstring flexibility in young adults. PIR may provide a marginal advantage in functional outcomes.

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