Just How Brutal Is The Insanity Fitness Test?
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10 12th, 2018 in
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More On This Topic: Rockhampton Farm Sheds Blue Print Sheds By Phillip Tucker The INSANITY workout program by Shaun T is based on the concept of Max Interval Training, where he inverts the traditional concept of brief periods of high intensity exercise with long moments of low intensity such that you kill yourself for extended […]