INSANITY: 60-Day Total Body Conditioning Workout DVD Program

INSANITY: 60-Day Total Body Conditioning Workout DVD Program
Shaun T's Insanity workout is a 60-day cardio-based total-body conditioning program that’s perhaps the most intense workout ever put on DVD. Interval training allows you to beat the “stress adaptation response,” and stops improving. An interval workout includes a set where you perform at your maximum, followed by one of lower intensity, with the cycle repeated to achieve a cumulative effect.

Shaun T's Max Interval Training

INSANITY: 60-Day