Cardio Workout Plans - HIIT vs LSD

Interval training (also called HIIT - High Intensity Interval Training) is a very popular cardio workout plan right now. It's pretty much the polar opposite of LSD - Long Slow Distance. Interval training is short and ultra intense - like sprinting would be. LSD, on the other hand, is much longer and done much slower - like jogging might be. Scientific studies have shown that interval training is much more effective than LSD. It gives you many of the same benefits that

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