What is the suggested type and amount of cardio for powerlifters? i dont care if i have a six pack or if im a fatty, i just want to lift the biggest weight. currently my only exercise is lifting weights, im working with the current theory that every calorie i spend on anything but lifting is one less calorie used to build muscle, but my buddy suggests that by doing cardio i will have more oxygen and ill be lifting heavier weights. Should i be doing cardio??