Active Mobilization of Hamstring for Non-specific Low Back Pain and Musculoskeletal Discomfort During Prolonged Sitting

Plain-language summary

Hip flexion is a normal part of everyday functional activities, including walking and sitting. The length of the hamstring influences on movement of the pelvis during hip flexion, consequently influencing lumbar lordosis. In most activities, the hamstring muscles are active and it is necessary to keep them at normal length. Sitting posture is responsible for the loss of the natural curvature of the lumbar spine, because the hip flexion and pelvic extension flatten the lumbar vertebrae (i.e., lumbopelvic rhythm). Furthermore tightened hamstring increases posterior pelvic tilt and reduces lumbar lordosis, which can tend to low back pain (LBP). Stretching exercises play an important role in both the prevention and treatment of LBP. One important option will be exercise protocol which will combine the active hamstring flexibility exercises with hip flexion mobilization and the development of the habit of correct hip flexion technique, protecting the lower spine. The aim of this RCT is to present a protocol for evaluating the effect of 8-week active hamstring flexibility exercises with hip flexion mobilization in reducing LBP and perceived musculoskeletal discomfort during prolonged sitting in young adults with non-specific LBP.

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