If YOU'RE FEELING pain just under your kneecap, you might be dealing with a bout of patellar tendonitis. It's a specific place to feel pain, and if you've ever experienced it, you know all too well ...

If you’re an athlete who does an activity with a lot of jumping involved, or if you have a child or teen who plays such a sport, you may one day find yourself with jumper’s knee. In the medical world, ...

Muscle isn't the only thing that matters. Here's how you can tap your hidden potential—and bulletproof against injury.

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The kicker: he had to do it without adding bulk. In most sports, the easy answer to increasing strength and power is to pack ...