Table 2

Study selection criteria

Sports-related hamstring injuries
Hamstring muscle strain-type injury (primary or recurrent hamstring injuries)Tendon injuries and general, non-specific studies into musculoskeletal injury
Must have discrete data for hamstring injury, assessing some aspect of risk, either intrinsic, extrinsic or bothInterventions trying to reduce risk of hamstring injury
Human subjects
Prospective studiesRetrospective studies, opinion articles, single case studies, cross sectional studies, and non-systematic reviews
Peer reviewed journals and be able to access full text
English language