America's most experienced ISAK instructors

Body Composition Measurement Certification for Professionals

Physique & Frame Assessment, Muscle & Size Potential, Talent, Injury Risk Analysis, Official ISAK training & certification

ISAK approved coursesISAK Level 1, 2 and 3Pro, college and military teams

Book a meeting with Body Quantification

A free 30 minute Teams call about ISAK courses, athlete testing, consulting or research. You'll be matched with whoever is free first: Dr. Jordan Moon or Kelley Altom.

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2026 and 2027 ISAK Courses by Body Quantification

Bonus access to advanced BQ Calculators. See the bonus →

Measuring and Training the Best

Our graduates work for the Yankees, Dodgers, Bears, Seahawks, Bucks, U.S. Soccer, Duke, the U.S. Army and 60+ more. See where →

Meet The Experts

Kelley Altom, MSEd, ISAK-L4 Criterion Anthropometrist

Body Composition Pioneer
Global Leader in Anthropometric Education

U.S. Director and internationally recognized authority in elite anthropometric training and assessment
Developer of the Illinois Wrestling Minimum Weight Certification Program
Trusted instructor and advisor to NFL, NBA, NHL, MLB, and MLS organizations on physique and performance assessment
Body composition consultant to high-profile clients, including President Barack Obama

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Dr. Jordan Moon, PhD, NSCA-CSCS, ACSM-EP-C, ISAK-L3

Research & Performance Lead
Sports Nutrition • Body Composition • Human Performance

Award-winning presenter and internationally recognized researcher in sports nutrition and body composition
Published 140+ peer-reviewed research articles and abstracts
Certified Exercise Physiologist (ACSM-EP-C) and Strength & Conditioning Specialist (NSCA-CSCS)
Directed and secured funding for 45+ trials across 30+ institutions
Distinguished Alumnus, Grand Valley State University
Delivered 50+ invited lectures nationally and internationally
International patent inventor and author

Learn About Dr. Moon's Research

SI by Body Quantification and the BQ Engine

Meet Dr. Skully

Dr. Skully is Body Quantification's SI: a full knowledge base trained on the BQ Library and run on the BQ Engine. Ask her about your results, methods and equations, and she cites the author, year and page for every fact.