Re: whenever I play ball my knees hurt
Yeah, have had a ton of knee pain over the years.
A more long term, difficult solution for me was weight training. It really helped me strengthen my legs, and stabilize my knee a bit.
An easier route were some fitted running shoes, or just a good pair of basketball shoes (not as effective, but it's okay..). Also, those neoprene knee sleeves help tremendously. Keep your knee very warm, feels great.