TY  - RPRT
TI  - Exercise with concentric and eccentric muscle contractions.
AU  - H G Knuttgen
AU  - F B Petersen
AU  - K Klausen
PY  - 1971
DO  - 10.1111/j.1651-2227.1971.tb05690.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5289796/
ID  - 5289796
ER  -