OUR TEAM

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JUSTIN HARRIS

Vice President, Co-Creator TeenLIFT

Director of Programming

Athletic Director Forsyth School

Justin is an incredibly experienced youth and adolescent coach and directs the physical education department at one of the premier schools in St. Louis. He and Dr. Greenspon conceptualized and developed the idea behind TeenLIFT and together are working on implementing this methodology nationwide.

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JOSE GREENSPON

President, Co-Creator TeenLIFT

Pediatric Surgeon and Weight Management Specialist

Jose is a double board-certified surgeon in both general and pediatric surgery as well as a youth fitness coach. His area of specialty is metabolism and bariatric medicine and surgery. 

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CIERRA CROWLEY

Assistant Head Coach

TeenLIFT Director of Outreach and Quality Control

Cierra is an incredibly accomplished certified pediatric nurse practitioner and former pediatric critical care nurse whose clinical interest and practice focus on nutrition and lifestyle as medicine. 

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JEFF MARTIN

Co-owner & CEO, The Brand X Method

A co-developer of the CrossFit Kids program, Jeff and his wife Mikki launched The Brand X Method in 2014. As a word leader in youth fitness, TBXM offers a strength and conditioning program designed specifically for kids. 

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MIKKI MARTIN

Co-owner & President, The Brand X Method

A co-developer of the CrossFit Kids program, Mikki and her husband Jeff launched The Brand X Method in 2014. As a word leader in youth fitness, TBXM offers a strength and conditioning program designed specifically for kids. 

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KIM WILLIAMS

Chief Business Development Officer, TOPUCU

Kim has more than 30 years of experience in the Health and Wellness field. Kim is currently the Founder/CEO of a Fitness Facility  Kim competed in the CrossFit Masters Games in 2013 and was ranked 18th in the World.

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NORM MULDER

Founder & CEO, TOPUCU

As an entrepreneur, civic leader, and passionate student of leadership, Norm Mulder brings his lifetime of experience as the founder of TOPUCU.