Abstract des Autors

With the competitive nature of college athletics and the lure of lucrative professional careers, athletes are pushing their training regimens to the limit. They lift more weight, run further, and train with greater intensity and duration to excel. While all this effort, for the most part, is commendable, it is important to be aware of possible dangerous training principles and practices. Some strength-enhancing machines provide great benefit to athletes and are dangerous only when overused or operated improperly. Other machines may be inherently dangerous, even when used in the prescribed manner. We report a case of a sacral stress fracture after the "proper" use of a commercial jumping machine in a 20-year-old college athlete. To our knowledge, this injury has not previously been described in this age group or in connection with this type of machine. Verf.-Referat