What are the risk factors for index and recurrent hamstring strain injury in sport?
Older age and a history of previous injury are the strongest risk factors for hamstring strain injuries in sports.
Older age and a history of HSI are the strongest risk factors for HSI. Future research may be directed towards exploring the interaction of risk factors and how these relationships fluctuate over time given the occurrence of index and recurrent HSI in sport is multifactorial.
Green et al. (Thu,) studied this question.