Cardio, Power & Strength all in one great workout. This is an extremely intense workout, designed for the fitness enthusiast seeking a higher level in human performance. Kettlebell: Butts & Guts trains power, cardio and strength, and delivers one enormous kick in the pants in all three categories. Be ready to shake up your routine, shock your body and rock your world. See more about Brook Benten in the GoFit Fitness Expert Section of our website.