Lyn Lamoure runs calisthenics during a Cardio Tennis class at Davis Senior High School in Davis, Calif. Perhaps you should consider Cardio Tennis. It’s not your leisurely recreational court game.

Tennis can be a great workout if you have skilled, competitively matched partners playing singles. For others, the game is more stop than go, sprinkled with cuss-muttering frustration: hit, run, whack ...

NEW YORK (Reuters Life!) - As the pros hit the courts for the start of the U.S. Open, tennis beginners and aces alike are burning calories and practicing their lobs, drop shots and backhands with ...

It took a while to find my tennis racket in the garage. I was about to try the latest fitness craze, Cardio Tennis, at the San Francisco Tennis Club, and I wanted to at least show up with equipment. I ...

I should've brought more water. I'm sprinting through my second obstacle dash around the tennis court -- batting back a blitz of balls, hopscotching through a rope ladder on the ground, zigzagging ...