Abstract
Lumbar passive tissue elongation is a potential risk factor for the development of low back pain. In this study, we explored the effect of lumbar passive tissue elongation on lumbar-pelvic coordination pattern during trunk flexion/extension task. Thirteen participants performed 5 trials of trunk flexion/extension task both before and after a lumbar passive tissue elongation protocol. Trunk kinematics were recorded to calculate lumbar–pelvic continuous relative phase (CRP) and CRP variability. Results showed that passive tissue elongation significantly decreased the mean lumbar-pelvic CRP and CRP variability. Our results indicate that prolonged experienced lumbar passive tissue elongation should be avoided in an occupational environment.
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