The NikkiFitness Slimnastics workout is boot camp meets yoga - but keep your sneakers on, you are going to need them The Slimnastics Workout combines cheerleading and gymnastics-style balancing, strength and cardio moves with yoga-based toning that requires no equipment other than your body weight. Plyometric cardio intervals cut workout time and boost metabolism. There is also a Slimnastics DVD you can buy if you'd like a workout buddy at www.slimnasticsworkout.com. NikkiFitness recreated the intense workout she achieved doing cardio jumping routines and the toning from pyramids and...