Hamstring to quadriceps strength ratio and noncontact leg injuries: A prospective study during one season

@article{Kim2011HamstringTQ,
  title={Hamstring to quadriceps strength ratio and noncontact leg injuries: A prospective study during one season},
  author={Dae-Hyun Kim and Junggi Hong},
  journal={Isokinetics and Exercise Science},
  year={2011},
  volume={19},
  pages={1-6}
}
Previous studies have proposed that thigh muscle imbalance is a critical risk factor for the athletic non-contact knee injuries. However, there is a little consensus among prospective studies with regard to the correlation between isokin etic hamstring to quadriceps strength ratio (HQR) and the non-contact knee injury rates. Most of athletic movements at risk are closed kinetic chain movements, and compensatory effect among ankle, knee, and hip joints during the closed kinetic chain movement… 
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