Hamstring injuries continue to prevail in sports in which a sudden explosive movement of the lower extremity is required after a relative resting position. Oftentimes these injuries occur biomechanically with forceful hip extension and simultaneous hip rotation. Rehabilitation programs should emphasize rotational movements, both for stretching and strengthening, for hamstring strains. Incorporating hip-rotational resistance in a closed kinetic chain might also benefit the athlete and minimize the risk of recurrence of a hamstring strain.