How can I jump higher without hurting my knees?

can any one tell me why abdominal muscles are hurting me without me doing any exercise at all. it feels like when you have ju...

I've been having a problem lately. I've started trying to use a stationary bike to exercise, but my knees start to kill me ev...

I hurt my left knee but not to badly,is there anyway I can rehab it before school shopping starts next weekend?

okay well my knee hurts really bad is there anyway I can pop it? or something?

Hey im only 13 but my knees crack worse than my grandmas! Im a runner, so that puts extra pressure on them. They hurt really ...

What do they work on, or improve when you do them?

im bout 5 feet 10 inches and i can get most of my fingers over the rim but i need a few extra inches to get the ball in, so w...

I have herniated discs in my neck and nerve damage down my arms. How can I reduce the size of my upper arms and also my stom...

Is it a good idea if I mix step ups and jump roping? Wouldn't the step ups make my legs bulkier? And how may should I do? Lik...

What parts of your body does jumping rope help?