Hamstring Strains: Basic Science and Clinical Research Applications for Preventing the Recurrent Injury

Hamstring Injuries Occur Frequently, With a High Recurrence Rate, in Sports That Require Either High-Speed Skilled Movements or Excessive Hip Flexion With Knee Extension. A Previous Hamstring Injury Is the Greatest Risk Factor for a Future Hamstring Injury, Which Has Led Sports Medicine Professionals to Search for Improved Postinjury Rehabilitation Strategies. Athletes May Show Postinjury Structural Changes in the Muscle-Tendon Unit and Be at Risk for Reinjury for Up to a Year After Return to Sport. Understanding the Postinjury Changes Can Help Create Practical Applications for Appropriate Reconditioning and Sports Performance Programs.