Back muscle fatigue in healthy men and women studied by electromyography spectral parameters and subjective ratings.

@article{Elfving2000BackMF,
  title={Back muscle fatigue in healthy men and women studied by electromyography spectral parameters and subjective ratings.},
  author={Britt Elfving and Gunnar N{\'e}meth and Inga Arvidsson},
  journal={Scandinavian journal of rehabilitation medicine},
  year={2000},
  volume={32 3},
  pages={117-23}
}
To obtain reference data for future studies of patients with low back pain, back muscle fatigue was studied by surface electromyography at L1 and L5 lumbar levels in 55 healthy subjects exerting 80% of maximal voluntary contraction of the back extensors in a sitting position. Reference data were the initial value and rate of decrease (slope) of the median frequency during the contraction. The aim was also to study the effects of contraction time, gender differences, electrode locations and… CONTINUE READING