TY  - RPRT
TI  - Flexibility development in sprinters using EMG biofeedback and relaxation training.
AU  - M S Cummings
AU  - V E Wilson
AU  - E I Bird
PY  - 1984
DO  - 10.1007/bf00998982
UR  - https://pubmed.ncbi.nlm.nih.gov/6395907/
ID  - 6395907
ER  -