International Journal For Multidisciplinary Research

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Effect of Hamstring Extensibility Training on Non-Specific Lower Back Pain Physiotherapy Management

Author(s) Eleen Kuriachen
Country India
Abstract Background: Non-specific low back pain (NSLBP) is a prevalent musculoskeletal condition associated with pain, reduced physical function, work limitations, and healthcare burden. Hamstring tightness may contribute to altered lumbopelvic movement and is commonly addressed during physiotherapy rehabilitation.
Objective: To evaluate the effect of adding hamstring extensibility training to conventional physiotherapy on pain intensity and hamstring flexibility in individuals with NSLBP.
Methods: A comparative pre–post study was conducted among 64 individuals with NSLBP. Participants were allocated into a control group (CG; n=32) and an experimental group (EG; n=32). Both groups received conventional physiotherapy for a duration of 1 week, consisting of electrotherapy, moist heat, manual therapy, lumbar mobility exercises, core and gluteal strengthening, non-hamstring stretching, and back-school education. In addition, the experimental group received hamstring-focused myofascial release and passive hold-relax PNF and self-assisted hamstring stretching. The intervention was provided over 1 week. Pain was assessed using the Numerical Pain Rating Scale, while hamstring flexibility was assessed using active knee extension and passive straight-leg raise. Within-group pre-post changes were analysed using paired t-test.
Results: Statistical analysis suggests that both groups have significant improvement in hamstring range of motion after the treatment protocols. The experimental group shows a significant decrease in subjective pain scores.
Conclusion: Hamstring extensibility training helped improve pain levels and hamstring range in NSLBP and may be used as an adjunct to the conventional treatment protocol.
Keywords Non-Specific Low Back Pain; Hamstring Extensibility; Active Knee Extension; Passive Straight-Leg Raise
Published In Volume 8, Issue 5, September-October 2026
Published On 2026-09-20
DOI https://doi.org/10.36948/ijfmr.2026.v08i05.87945
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