Acute and Chronic Resistive Exercise Increase Urinary Chromium Excretion in Men as Measured with an Enriched Chromium Stable Isotope

By Ty Sevin, Aug 31, 2021

< Back to Benefits of Strength Training on Chromium Supplementation in Older Adults

Michelle A. Rubin, John P. Miller, Alice S. Ryan, Margarita. Treuth, Kristine Y. Patterson, Richard E. Pratley, Ben F. Hurley, Claude Veillon, Phylis B. Moser-Veillon and Richard A. Anderson. Department of Nutrition and Food Science, Department of Kinesiology, University of Maryland, College Park, MD; USDA Beltsville Human Nutrition Research Center, Nutrient Requirements and Functions Laboratory, Beltsville, MD; and division of Gerontology, Department of Medicine, University of Maryland at Baltimore, Baltimore VA Medical Center, Baltimore, MD.

Objectives

The researchers measured the effects of short term (acute) and long term (chronic) strength training on the amount of chromium that is excreted in the urine. 10 men aged 53-63 years, consumed diets in compliance with the American Heart Association Phase 1 diet with a set amount of Chromium content, and participated in 16 weeks of strength training. Chromium excretion was measured after single bouts (acute) of strength training and after completion of the 16 weeks (chronic).

Results

Strength training led to an ≈ 41% increase in total body strength, increases in fat-free mass and decreases in the percentage of body fat. Both short term and long term strength training increased Chromium excretion.

Summary

This study demonstrates that there may be an increase in Chromium absorption in response to strength training as determined by the increased excretion of the Chromium isotope. It also suggests that some of the improvements in glucose and insulin metabolism due to exercise could be related to increased Chromium absorption.

Keiser Equipment Used

Leg press, leg extension, chest press, lat pull down, shoulder press, upper back

Published in Journal of Nutrition, vol. 128; pgs. 73-78, 1998.

Abstract #20 under the Diabetes abstracts also refers to Chromium.

Link to Original Research

About the author

Ty Sevin

Director of Human Performance, Education and Research

Articles by Ty Sevin >

With over 25 years of coaching experience at both the collegiate and Olympic levels, Ty Sevin is one of the most influential track and field coaches in the country. Ty has worked for the United States Olympic Committee, serving as the Director of the Track and Field Residency Program at the USOC Olympic Training Center in Chula Vista, CA. He has also served as an assistant coach for Team USA on three separate occasions, for both the men’s and women’s teams. Ty himself was a four-time U.S. Olympics Trials qualifier in javelin. Ty most recently spent four years as the Associate Head Coach at the University of Texas at Austin for both the men’s and women’s track and field teams. Prior to that, he led the men’s and women’s track and cross-country teams at the University of New Orleans and McNeese State.

Currently, Ty applies his vast industry experience to the role of Director of Human Performance, Research and Education for Keiser Corporation, where he consults with college and professional sports teams regarding the utilization of Keiser strength equipment. He is also responsible for creating educational curriculum relating to human performance and overseeing Keiser research projects