Your muscles will beg for mercy as your strength training starts with Tabata-style "20 seconds on, 10 seconds off" power moves. Your muscles will beg for mercy as your strength training starts with ...
A 60-day cardio-based total-body conditioning program, INSANITY® is likely the hardest workout curriculum ever put on DVD. Fitness trainer Shaun T pushes the limits with 10 workouts packed with ...
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