In college I played like 5-6 times a week. By my late 20s, I stopped playing altogether. My cousin got me to start playing ball again 2 years ago after not playing at all for almost 8 years. I had achilles problems right away, as well as being way out of shape. I've severely sprained both ankles multiple times when I was younger. What I do now is I wear those elastic ankle braces on both feet (the hard ankle braces hurt imo), wear two socks, and tie my basketball shoes tight as . It won't completely prevent me from ever encountering problems, but it makes me feel better about things. Lastly, once you get passed 30 or so, being compe ive at basketball isn't more important than leaving healthy, so don't bust your ass like you're still 21 years old. Even if you're playing in a compe ive rec league, it's not worth diving for basketballs or going for a blocked shot every time down. It's just not worth it.