TY  - SER
AU  - 
AU  - 
AU  - 
AU  - 
AU  - 
TI  - Strength deficits identified with concentric action of the hip extensors and eccentric action of the hamstrings predispose to hamstring injury in elite sprinters
PY  - 2008///
CY  - Estados Unidos: 
PB  - Journal of orthopaedic & sport physical therapy, 
ER  -