Celebrity fitness trainer Jeff Cavaliere and creator of the AthLEAN-X Training System shows you the power of AthLEAN-X Burst Training for burningfat faster than ever while keeping your workouts short and intense.Show more. Program Focus BuildMuscle, BurnFat, Athleticism. Equipment Minimal.The ATHLEAN-X Training System™ and the ATHLEAN-RX™ are registered trademarks and may not be copied or used for any purpose without express written consent. The WORST Cardio for Fat Loss (RANKED!) 10:01.The 10 Most EFFECTIVE Bodyweight Exercises forBuildingMuscle. Try This Bodyweight Circuit Workout to BurnFat and Tone Muscle. Buildingmuscular shoulders is one of the most rewarding goals for beginners in strength training. Well developed deltoids improve your overall physique, enhance upper body strength, and support better posture and joint stability. 20-Minute Muscle-Building Workout to BurnFat. This at-home workout is done in a fast, high-intensity HIIT format where you circuit through five exercises with little rest. Each exercise targets the different regions of the body and muscle groups to allow active rest during the circuit. Xtreme FatBurning Circuit - "The Horrible Hundred!" ATHLEAN-X. FATBURNING "BLITZ" WORKOUT - Superbowl XLV Halftime Football Workout. Check out our complete musclebuildingfatburning programs.Our 90 day starting point for athleantraining. Build ripped, lean athletic muscle by training like an athlete.