Sprint Performance in Football Players With a Previous Hamstring Injury

Inclusion Criteria Controls: * Able to participate fully in regular football training and matches Exclusion Criteria Controls: * Self-reported hamstring strain injury resulting in loss of regular football training sessions or football matches in the preceding 12 months. * Longstanding injury (\>6 weeks) in the lower extremities or trunk in the preceding 12 months. * Any pain in the lower extremity, pelvis, or spine during testing Inclusion Criteria Cases: * Able to participate fully in regular football training and matches * Self-reported hamstring strain injury resulting in loss of regular football training sessions or football matches in the preceding 12 months. Exclusion Criteria Cases: * Longstanding injury (\>6 weeks) in the lower extremities (except hamstring strain injury) or trunk in the preceding 12 months. * Any pain in the lower extremity, pelvis, or spine during testing