Known best for developing the TurboFire and TurboJam fitness video series, she also published a New York Times bestselling self-help book titled PUSH: 30 Days to Turbocharged Habits, a Bangin' Body, and the Life You Deserve!
After graduating from Michigan State University and while holding a day job as a paralegal, she began pursuing her interest in fitness training.
Her popular workout videos combine elements of martial arts and dance.
She and her husband Bret met during college at Michigan State; they married in 1995 and co-founded a company called Team Johnson. They have a son named Brock and a daughter named Cierra.
She and Jillian Michaels both produced bestselling fitness videos.