Greg is a best-selling author, speaker and fitness entrepreneur. He opened AYC Health & Fitness, Kansas City’s Original Personal Training Center, in May 1986, and has personally trained nearly 60,000 one-on-one sessions. Today, AYC specializes in onsite corporate wellness, personal and small-group training. 

Greg is the co-founder and CEO of the National Corporate Fitness Institute (NCFI), a certifying body for fitness professionals, and the co-founder of Scriptor Publishing Group.  

Greg holds a master’s degree in HPER (exercise science) (1986) and a bachelor’s degree in Health & Physical Education (1983) from Morehead State University, Morehead, KY.  He has been actively involved in the fitness industry for more than three decades as a club manager, owner, personal fitness trainer, and corporate wellness supervisor. He has worked with athletes and non-athletes of all ages and physical abilities and served as a conditioning coach at the collegiate level. He worked with the Kansas City Chiefs, during the offseason, in the early 1980’s, along with professional baseball, soccer and golf athletes. 

He writes articles and contributes for many international publications and websites including, Men’s Fitness, Women’s Health, Prevention, Time, US News & World Report, New York Times, IDEA Fitness Journal, Corporate Wellness Magazine, and has a monthly column called “Treadmill Talks” in Personal Fitness Professional magazine.  Greg has authored twelve books.