|Born||October 21, 1942|
|Died||May 14, 2017(aged 74)|
|Other names||"Dr. Squat"|
|Height||5 ft 6 in (1.68 m)|
|Representing United States|
|1981 Santa Clara||100 kg|
|IPF World Powerlifting Championships|
|USPF National Championships|
|AAU National Championships|
Frederick C. Hatfield (October 21, 1942 – May 14, 2017), nicknamed Dr. Squat, was an American world champion powerlifter and PhD holder in sports sciences. He was also the co-founder and president of the International Sports Sciences Association, an organization of fitness experts which certifies personal fitness trainers from around the world. He went on to make the ICOPRO bodybuilding protein and supplements for Vince McMahon's World Bodybuilding Federation. After the promotion folded, McMahon continued to market the product until 1995.
Personal life and career
Hatfield was born in Williamstown, Massachusetts in 1942. He graduated from Cromwell High School. He served in the United States Marine Corps where he worked with the Office of Naval Intelligence in the Philippines  until 1964, when he enrolled in Southern Connecticut State University.
Upon graduating, Hatfield earned his Bachelor of Science degree in health, physical education and recreation. He then attended the University of Illinois at Urbana-Champaign, where he earned his Master's degree in the social sciences of sport. He went on to earn his PhD in psychology, sociology and motor learning from Temple University in Philadelphia.
Hatfield held positions at Newark State College, Bowie State University, and the University of Wisconsin–Madison. He taught undergraduate students, and conducted research in sport psychology. He has written over 60 books, some of them best-sellers. His best-selling seminal work Bodybuilding:A Scientific Approach set the standard for many fitness books today. He wrote hundreds of academic and fitness articles which have been cited by experts, including Anabolic Steroids expert James Wright.
He was diagnosed with metastatic skeletal cancer in 2012 and was advised by 3 doctors that he had 3 months to live. However, he told CBN News that he had tried to slow progression with a ketogenic diet and the cancer went away completely. 
He was inducted in the National Fitness Hall of Fame in 2016.
Hatfield died May 14th, 2017 from sudden heart failure at age 74.
Accomplishments in powerlifting
As a powerlifter, Hatfield won 2 IPF World Powerlifting Championships titles in 1983 and 1986. At the age of 45, he set a squat world record by lifting 1,014 pounds (460 kg) in the 125 kg (276 lb) weight class, which at the time was the heaviest squat in history regardless of bodyweight. He weighed 255 lbs.
|Clean and Jerk||369 pounds|
- "Archived copy" (PDF). Archived from the original (PDF) on 2012-05-22. Retrieved 2012-03-30.CS1 maint: archived copy as title (link)
- "Hatfield Frederick - results in powerlifting and benchpress, records, personal data, photos and video".
- "Obituary for Frederick C Hatfield". Sunset Point Funeral Home. Retrieved 2017-12-14.
- Biography Archived 2007-12-12 at the Wayback Machine from DrSquat.com. Archive link.
- "Frederick C. Hatfield, MSS, Ph.D., ISSA Co-Founder and President". ISSAOnline.com. International Sports Sciences Association. Archived from the original on June 10, 2008.
- "Fred "Dr Squat" Hatfield Passes Away at 74".
- Dr. Squat on Bodybuilding.com
- Altered States: Wright, James E et.al Brown and Benchmark, 1990 ISBN 0697148343
- Hatfield, Frederick C. Hardcore Bodybuilding, McGraw Hill,199 93
- "SUGAR is CANCER FOOD ~ Fred Hatfield's Terminal Cancer Story".
- "National Fitness Hall of Fame".
- "Obituary for Frederick C Hatfield".
- "Archived copy". Archived from the original on 2011-08-10. Retrieved 2007-12-03.CS1 maint: archived copy as title (link)