Paul Katami's signature 4x4 Workout is a challenging bootcamp style interval class based on Paul's sold-out classes in Hollywood. 4x4x2 takes you through Four Minute Blocks of exercises consisting of One Minute Intervals of Cardio, Lower Body, Upper Body and Core Exercises. The Full-Body, Fast-Paced approach will leave you Breathless with Unmatched Results! Shot in real time with real 4x4 class participants to give you the best spot for this incredible workout.

A super-challenging workout that features a huge assortment of creative exercises. The moves are original and effective — this program will truly push your body to its limit. The format is simple: five blocks of four exercises. The exercises also have a consistent sequence: cardio, lower body, upper body and core (60 seconds each). But, even the “toning” intervals are aerobic — mostly fast-paced, explosive moves like “single leg burpees” or “plyometric squats” (so your heart rate never drops and you never stop burning fat). Other unique exercises include “180-degree mat jumps,” “twisting leg push-ups” and “scorpion planks.” DVD has a seven-minute tutorial of the new moves. Requires two sets of dumbbells (e.g. 5 and 10 lb.).