Fred Hahn

ACE certified personal trainer, owner of Serious Strength Personal Training, co-author of Slow Burn Fitness and author of Strong Kids Healthy Kids

Fred has been involved with exercise ever since he became a member of The Charles Atlas Club when he was 10 years old. He began training clients in the early 1980s at several of NYC's leading health clubs, including the Equinox and New York Health and Racquet Club.

Fred began developing his Slow Burn system as a physical therapy aide at the Hospital for Joint Diseases Sports Medicine Center in NYC. In 1994, Fred, along with one of New York’s leading orthopedic surgeon’s co-founded a private physical therapy clinic located at New York Methodist Hospital in Brooklyn New York. As Director of clinical exercise, Fred ran the clinic until 1996.

In June of 1998, after nearly 10 years of continuous refinements and application, Fred founded and established Serious Strength, a Slow Burn personal training and rehabilitative exercise center in NYC. His clients include CEO’s of some of the country’s largest corporations, famous actors, writers, journalists and TV personalities.

In an effort to provide the best nutritional guidance possible for his clients, Fred initiated an intellectual partnership with the authors of the New York Times bestselling book Protein Power, Drs. Michael and Mary Dan Eades and together authored The Slow Burn Fitness Revolution (Jan. 2003, Random House). It is currently in its ninth printing and is one of the best selling fitness books in Random House history. His new book Strong Kids Healthy Kids teaches parents and their children how to lift weights safely and eat healthfully.

Fred has appeared on the NBC’s The Today Show, CNN’s The Biz, WABC Morning Show, NBC Live at Five, 700 Club, Fox Five News, ABC Eyewitness News, and more. He has been interviewed by the New York Times and the Washington Post and appears on radio shows around the country including National Public Radio, Dr. Oz, Bob Greene, WFAN in New York City, and many more.

Fred has lectured extensively on exercise including Princeton University, Chelsea Piers, Hospital for Joint Diseases, Mt. Sinai Hospital as well as abroad. He was a senior staff writer for Women’s Basketball Magazine and has his articles published in numerous fitness publications. He studied at Castleton State College and Long Island University and has an extensive continuing education resume.

Fred is also a board member of the Nutrition and Metabolism Society. He is professionally certified by the American Council on Exercise as a personal trainer since 1993.

Got a tip?

Do you have info to share with HuffPost reporters? Here’s how.