Summary An understanding of the relationship between the hamstring muscles and certain pelvic and trunk postures may be useful when developing therapeutic interventions (Gregor et al 1991). The hamstring muscles not only contribute to motion but also to postural stability. It is important to realize the forces that are placed on the kinetic chain when an injury occurs to this muscle group, and be able to recognize the need to care for fixations of osseous or soft tissue. Additional education of the athlete regarding the aetiology of their injury is important. In the case of JF, her injury occurred during the middle of her workout, there was no sudden overextending of the musculature. This leads me to believe that there was muscle cramping secondary to dehydration, causing the sudden muscle tear. My recommendation for this athlete is to concentrate on drinking approximately 3 litres of water a day to stay well hydrated. Finally, we must remember that the athlete frequently feels that they are not an athlete if they are not competing or training. This holds true for JF, her running programme provided essential stress relief. As clinicians we must strive to apply alternative training methods until the athlete can return to their normal training schedule.