"Splitting your training between upper body and lower days allows you to give more attention to whatever needs it," Gunnar Peterson, a Nashville, Tennessee-based celebrity fitness trainer told Fox ...

Forewarned is forewarned. Life changing turn," he began his post. CELEBRITY FITNESS TRAINER GUNNAR PETERSON ON SPLITTING UPPER AND LOWER BODY WORKOUT ROUTINES LIKE WHAT YOU’RE READING?

Jennifer Lopez, Khloé Kardashian, and Kate Beckinsale share a secret weapon: their personal trainer, Gunnar Peterson. This fitness guru has let slip to a U.S. magazine some of the tricks he uses ...