Ready for a new cardio workout that will keep you on your toes? This routine is all about using minimal space to complete an effective and challenging round of cardio. Using standing moves, constant movement, and little rest, you’ll be pushing yourself to the limit, packing in a full cardio blast in just 15 minutes. Cardio can act as a workout all on it’s own or as part of your weight training regime. Either way, it’s win win for your fitness.