Tennis balls are having a second life beyond the tennis court. Many fitness freaks are using the quintessential green tennis ball as an exercise tool. Tennis ball exercises are an easy way to relieve ...

It was just this past week that we told you about the T-Apex, a mobile tennis-ball-serving robot that tracks and assesses players' returns. Well, the Acemate bot goes a step further, by actually ...

There are a lot of ways to work out with a ball in the gym. You have the ball sports—soccer, basketball, tennis, to name a few. Then, there are medicine balls, BOSU balls, and stability balls. They ...