Any jumping, skipping rope, jumping on the bench with varying levels of intensity great cardio exercise. (best-powertower.com)
You'll get great cardio while you're doing the work since you use so much more muscles than you need to do with any other kind of weight training. (best-powertower.com)
Both are low - impact, provide great cardio benefits and are the perfect excuse to head outside for some fresh air. (fitpregnancy.com)