Narrator: This is Science Today. One of the most common sports injuries is a stress fracture. These are often called overuse injuries and occur when muscles become fatigued and are unable to absorb added shock, eventually causing a tiny crack in a weightbearing bone, usually located below the knee. Dr. Keith Donatto, an assistant clinical professor of orthopaedic surgery at the University of California, San Francisco, says certain sports do predispose athletes to stress fractures.
Donatto: Jogging or running is probably the most common sport that we see the injury in.
Narrator: And although professional athletes are not immune, Donatto says it's the weekend warriors who are more prone to stress fractures.
Donatto: Their jobs are not to stay fit, their jobs are not to be professional athletes, so they're less likely to maintain a very rigid training program.
Narrator: To prevent these injuries, Donatto recommends warm-up stretches and conditioning. Once diagnosed, the most important treatment is rest - giving the stress fracture six to eight weeks to heal. For Science Today, I'm Larissa Branin.