Allison Westfahl is a certified coach, personal trainer, and fitness nutrition specialist. After earning an undergraduate degree from Yale, Westfahl decided to move to the Rocky Mountains to pursue a career in helping people live a healthy, active lifestyle. She quickly made her mark on the industry, and has been managing and directing personal training teams at high-end health clubs in Boulder and Denver since 2003.

Westfahl's talent for creating innovative, effective core routines is widely recognized. She has helped choreograph workout videos for Gaiam, trained professional athletes needing help with core strength, and has been featured in publications ranging from Shape to Bicycling to the Denver Post.

She holds an MS in Exercise Science, a coaching certification from USA Triathlon, and has earned a CPT, PES, and FNS from the National Academy of Sports Medicine.