Greg Justice

Greg Justice, MA, is a bestselling author and personal trainer who writes about fitness, the psychology of performance, and staying independent as we age.

In May 1986, Greg opened AYC Health & Fitness, Kansas City’s first personal training studio. He has personally led more than 100,000 one-on-one training sessions. Before opening AYC, he worked with the Kansas City Chiefs during the offseason and served as a collegiate conditioning coach. He earned his master’s degree in exercise science from Morehead State University and was inducted into the National Fitness Hall of Fame in 2017.

Greg co-founded Scriptor Publishing Group and has written or co-written more than 30 books. In Treadside Manner, he shares what his clients taught him about coaching. He teamed up with former Kansas City Chief Art Still to write Mind Over Head Chatter, a book about the mental side of sports. He also co-authored Pride & Discipline: The Legacy of Jack LaLanne with Elaine “LaLa” LaLanne and wrote the foreword to HER Legacy, a tribute to her influence on generations of women.

Greg still finds reasons to test what he teaches. After competing on NBC’s American Ninja Warrior, he took on 65 obstacles on his 65th birthday to raise funds for Still4Life.