i'm almost 30 and have knee pain, but only when i bend. it starts at about 45 degrees, goes away when my ass is parallel to the floor, and comes back again when push up. i'm sure it's from the 5 days/week basketball i used to play for a good 5 years. haven't been playing much the last 1.5 years but i definitely feel the effects. my question is, is there something i can take that'll improve it longterm? also, what's a good alternative to squats? i've got a high pain tolerance but i've had enough of trying to do a squat and always thinking my knees are gonna give out. it's just the front of my knees.