@misc{indiciaed07f51ad9a4e, title = {Surface electromyography during sustained isometric contractions.}, author = {A J Lloyd}, year = {1971}, doi = {10.1152/jappl.1971.30.5.713}, url = {https://pubmed.ncbi.nlm.nih.gov/5572794/}, note = {Source identifier: 5572794} }