powerball

Yo, since a lot of my backhand resolves around my wrist, I bought a powerball to exercise. I think that it can actually help, my problem is that I kinda get "addicted" to it. What I mean is that if I don't have the ball in my hand I feel my arm doing the movement on his own or having the feeling...

A while ago I bought a Powerball for what I thought were early RSI symptoms, but didn't really use it. Shortly after I didn't have to spend that much time behind the PC anymore, so the symptoms didn't get any worse anyway. Recently I noticed it lying on the shelf collecting dust, and I got a...