Wall sits strengthen your quadriceps, knee caps, and quadricep tendons. Doing hamstring curls boosts knee strength and lowers stress and injury risk. Clam shells target your gluteus medius and minimus ...

The key to healthy joints is often strengthening the muscles on either side of them. The key to healthy joints is often strengthening the muscles on either side of them. Credit... Supported by By Jen ...

Lunges are popular for toning and strengthening your legs, including a group of muscles called the quadriceps. Your quad muscles extend from your hips to your knees at the front of your thighs. Having ...

When you have achy, sore knees, working out is probably the last thing you want to do. But generally speaking, exercising bad knees can actually help them feel better. "While you might not feel like ...