When you have knee pain, you’ll want to limit running and jumping activities that can make the discomfort worse. If you’re recovering from an overuse injury, for example, you should avoid or limit the ...

Two physical therapists share ways to modify six popular exercises if you have knee pain and signs it's time to see a doctor.

You’re halfway into a squat or lunge, and your knees start spazzing out. They crack, pop and pretty much create their own less-than-pleasant workout soundtrack. Called crepitus, this crackling can ...