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Are you ready to combine CARDIO and WEIGHTS in one 20-min. workout? MetaCardio is metabolic interval training, a rapid fire, metabolism-raising workout that combines both cardio and weights in one time effecient workout. It is my contribution to the well-researched and effective training technique known as High Intensity Interval Training. With 100 exercises and 50 challenging workouts, MetaCardio will keep you motivated and prevent boredom, helping you to get lean fast!