Evaluating the Relationship Between Muscle Activation and Spine Kinematics Through Wavelet Coherence.

@article{Hay2016EvaluatingTR,
  title={Evaluating the Relationship Between Muscle Activation and Spine Kinematics Through Wavelet Coherence.},
  author={Dean C. Hay and Mark P. Wachowiak and Ryan B. Graham},
  journal={Journal of applied biomechanics},
  year={2016},
  volume={32 5},
  pages={526-31}
}
Advances in time-frequency analysis can provide new insights into the important, yet complex relationship between muscle activation (ie, electromyography [EMG]) and motion during dynamic tasks. We use wavelet coherence to compare a fundamental cyclical movement (lumbar spine flexion and extension) to the surface EMG linear envelope of 2 trunk muscles (lumbar erector spinae and internal oblique). Both muscles cohere to the spine kinematics at the main cyclic frequency, but lumbar erector spinae… CONTINUE READING