Gary Mullen

  • Elected a member of the advisory board for the International Society of Swim Coaches
  • Owner of COR, a physical therapy and personal training studio in Santa Clara, California
  • Has a Doctorate in Physical Therapy from the University of Southern California in 2011
  • Published in ​Swimming World magazine, Swimmer magazine, and the Journal of the International Society of Swim Coaches​​
  • Masters World Record holder


Dr. Gary John Mullen is a former writer for ThoughtCo who contributed articles about swimming and sports training for over three years. Mullen was also a collegiate swimmer at Purdue University,  a Masters World Record holder, and elected to the advisory board for the International Society of Swim Coaches.

Along with pursuing multiple degrees in physical therapy and health sciences, Mullen is the creator of Swimming Sciencethe monthly Swimming Science Research Review, the "Swimmer’s Shoulder System," Swimmer's Troubleshooting, and "Mobility for Swimmers." He is the swimming expert for both STACK Magazine and Sports Rehab Expert and consults many sports teams regarding weight training and biomechanics.

Mullen is a Certified Strength and Conditioning Specialist with certification through the National Strength and Conditioning Association (NSCA) and the owner of a training studio called COR in Santa Clara, California.


  • Doctorate in Physical Therapy from the University of Southern California (USC), with a special focus on physical activity and type II diabetes as well as lung adaptations in swimmers
  • Bachelor of Science in Health Sciences from Purdue University

Awards and Publications

  • USC Josette Antonelli Division Service Scholarship
  • USC Order of the Golden Cane
  • USC Order of Areté
  • Academic Honorable Mention All-American at Purdue University
  • Masters Swimming and World and Pacific Swimming record-holder
  • STACK Magazine
  • Sports Rehab Expert
  • Editor for the NSCA personal trainer quarterly
  • Swimming Science

Gary Mullen

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