this week staying well now. trampolines, they're not just for kids. watch. >> come on. pick it up. pick it up. >> rebounding is the fitness term for bouncing on a trampoline. rebounding works out your entire abdomen core, your glutes, hamstrings, all the muscles in the legs. the basic bounce is the main position. we also do jogs on the trampoline. pulling knees up to the chest. we do jumping jacks. >> i have always had knee issues. i used to do cross country in high school and had to stop that because of joint awe pain. the great cardio workout but you don't have the impact on your joints. we try to keep the movement small and controlled. anyone who has a recent injury should check with their doctor. >> rebounding is great for circulation. it's great for balance. it's great for improving