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About Us

Cal Dietz

Founder and author of TriPhasic Training

Cal Dietz has been an Olympic Sport Strength and Conditioning coach for numerous sports at the University of Minnesota since 2000. During his tenure, Dietz has trained athletes that have achieved 400+ All-American honors, Teams that have won 33 Big Ten/WCHA championships teams and 10 NCAA Team Champions. He has consulted with Olympic and World Champions in various sports and professional athletes in the NHL, NFL, NBA, MLB, MMA and Professional Boxing.


  • Division 1 Strength and Conditioning Coach
  • Olympic Sports Strength Coach
  • 2 Big Ten Athletes of the Year
  • 34 BIG TEN Titles
  • 11 National Champions
  • 543+ All American Honors

Tyler Bosch, Ph.D.

Tyler Bosch, PhD earned his Master’s and Doctoral degree from the School of Kinesiology at the University of Minnesota. Following his doctorate, he completed a two-year post-doctoral fellowship at the University of Minnesota Medical School studying the effect of exercise on glucose and lipid metabolism using isotopic tracer techniques. His research has focused on body composition and substrate metabolism in several populations and he has collaborated with researchers across the United States. He has been using DXA in research since 2005 and has developed a novel method for measuring the anterior and posterior compartments of the upper leg using DXA.

In between his Master’s and PhD work he served as the Director of Sports Performance for Fitness Revolution in Chicago, IL. Tyler has been involved in sports and performance training for most of his life as both an athlete and coach. He has over ten years’ experience training athletes of all levels as well as coaching soccer across all levels. During his PhD he served as the Director of Coaching and Curriculum at Leftfoot Coaching Academy, a dedicated soccer training facility in Minneapolis, MN.  In addition to Dexalytics, Tyler serves as a Research Scientist in the College of Education and Human Development. He works with a number of collegiate and professional sports teams to improve how they collect, analyze, and interpret the data they collect on their athletes.