NEW YORK (Reuters Life!) - Its all in the bounce when it comes to rebounding, the group fitness class that uses mini-trampolines to pump up the cardio without slamming the knees and joints. And if the ...

I’m a rebounder. Not the romantic kind but the trampoline kind. Up and down I go bouncing among the tall pines in my suburban backyard, winter, spring and fall. Summer, too, of course! The two large ...