TY  - RPRT
TI  - Quantitative surface EMG during sustained and intermittent submaximal contractions.
AU  - H Christensen
AU  - A Fuglsang-Frederiksen
PY  - 1988
DO  - 10.1016/0013-4694(88)90084-3
UR  - https://pubmed.ncbi.nlm.nih.gov/2458230/
ID  - 2458230
ER  -