Jimmy Peña MS, CSCS
Jimmy received his Master’s Degree in clinical exercise physiology from the University of Texas at Tyler in 1998. He then published his thesis summay in the renowned journal Medicine & Science in Sports and Exercise. Jimmy served as the fitness director for Muscle & Fitness and Muscle & Fitness Hers magazines and for over a decade, authored and edited hundreds of articles on training and fitness, making him one of the nation’s most published training experts.

In 2006, Jimmy designed the women’s training programs for LL Cool J’s New York Times Best Seller, “Platinum Workout” (Rodale Books 2006), and later that year served as creator and host of the Muscle & Fitness DVD series, THE ROCK-HARD CHALLENGE. In early 2007, Jimmy began working with Mario Lopez, contributing to his book, “Knockout Fitness” (Rodale Books 2008), while also helping prepare his physique for appearances in People, TV Guide and on FX’s acclaimed primetime show Nip Tuck. In 2009, Jimmy began working as the exercise physiologist to movie mogul, Tyler Perry. And in May of 2010, Jimmy’s latest project, “EXTRA LEAN”, a nutrition book with Mario will hit newsstands.