Fitness Injury: What to Do When Injury Strikes (cont.)

Even if you're already in good shape, experts say problems can occur if you overuse any one set of muscles. To keep this from happening, ease into the activity slowly and never skip warm-ups.

"For example, take five minutes out to stretch your muscles before jumping on that treadmill or bicycle, and don't push yourself to the point of pain -- even if you have done the routine before," says Schlifstein.

Some more advice: Stop immediately if you do feel pain, and rest for a day. If pain begins when you do the same motion again, says Schlifstein, it's a sure bet you've got an injury.

But how do you know you've got an injury and are not just sore from working out?

"Soreness usually shows up one or two days after you work out, and does not usually occur while you are actually doing the activity," says Rich Weil, MEd, CDE, an exercise physiologist at St. Luke's-Roosevelt Hospital in New York and consultant for the WebMD Weight Loss Clinic.

If you try to work out when you're feeling sore, the pain usually subsides after 10-15 minutes of activity, Weil says. Not so when an injury is involved.

"Pain related to an injury gets worse when you are working out," says Schlifstein. "That's when you know it's time to stop and listen to your body."

When Injury Occurs

Of course, while precautions like warming up and starting slowly can reduce your risk of injury, there's always a chance you'll get hurt anyway. The experts say it's important to remember that all but the most severe workout injuries usually heal on their own. Most do so in four weeks or less, says Schlifstein, and you can recover from many muscle strains in less than 10 days.

"Most people can usually heal their injury on their own using the RICE procedure, which is rest, ice, compression and elevation," Schlifstein says. "And the sooner after the injury you begin, the more you reduce the risk of inflammation setting in, and the quicker you can get back on your feet."

Until you're healed, avoid doing whatever activity you were doing when you got the injury, as well as other moves that involve the injured area.

"Don't try to be a hero and 'work through' the pain," says Schlifstein. "You'll only do more damage."

If the injury doesn't feel significantly better within a week -- and certainly if it feels worse -- seek medical care. Any numbness, tingling, or weakness in the leg, or sudden bladder- or bowel-related problems should be reported to a doctor right away.

And what about regaining the weight during the time an injury slows you down?

Because 80% of all injuries usually heal on their own -- often in less than a month -- the threat of weight gain is small during the recovery period, Gatlin says. But for some, Weil cautions, the forced break in activity can be enough of a mental blow to trigger overeating.

"The lack of activity after being injured can cause some people to feel a lack of control in their lives, and together with changes in brain chemistry that also occur when activity stops, can sometimes lead to depression, and that can sometimes lead to overeating," he says.