Electromyographic studies of the lumbar trunk musculature during the generation of low-level trunk acceleration.

@article{Marras1993ElectromyographicSO,
  title={Electromyographic studies of the lumbar trunk musculature during the generation of low-level trunk acceleration.},
  author={William S. Marras and Gary A. Mirka},
  journal={Journal of orthopaedic research : official publication of the Orthopaedic Research Society},
  year={1993},
  volume={11 6},
  pages={811-7}
}
An understanding of how the support mechanisms of the spine behave during lifting may yield insight into the loading of the spine under occupational conditions and help shed light on the etiology of low-back disorders. Previous controlled laboratory studies of spinal loadings have been limited to isometric and isokinetic conditions. To evaluate the behavior of the trunk during acceleration, we recorded intra-abdominal pressure and trunk muscle activities during low-level acceleration. Twenty… CONTINUE READING

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