About the Author

Andy Dumasis a professional, certified boxing instructor, coauthor ofThe One-Two Punch Boxing Workout, and the host and producer of several TV fitness shows. He has been featured in such health and fitness publications asMen's Health,Muscular Development,Oxygen,Self, andMuscle Mag.

Jamie Dumas's training is in classical ballet and fitness boxing. She is a certified boxing instructor and, as such, has taught hundreds of students of all ages, abilities, and fitness levels.