The wrong gym shoes can cause ankle pain, redness, fatigue, or other foot discomfort. If you vary activities, consider a cross-trainer. If you mainly stick to one, such as tennis, look for shoes made specifically for that sport.

If you're looking for a good running shoe, fit is key. Read our advice on choosing a running shoe that's right for you and check out our Ratings (subscribers only). Watch our video (right) to find out what we looked at during our running shoe tests.

And for more on preventing sports injuries, read our 12 tips.