EMG activity of low back extensor muscles during cyclic flexion/extension.

  title={EMG activity of low back extensor muscles during cyclic flexion/extension.},
  author={Gwanseob Shin and Clive D'Souza},
  journal={Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology},
  volume={20 4},
Cyclic trunk flexion/extension is known to be a risk factor for low back pain or disorders. Changes in the in vivo low back musculature associated with cyclic flexion/extension have not been adequately examined. The purpose of this study was to investigate the effects of cyclic flexion/extension on muscle activity of the low back extensors by quantifying changes in activation timing and mean amplitude of electromyography (EMG). Trunk flexion angle and EMG were recorded during 30 cyclic flexion… CONTINUE READING

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