Strength Training Increases Nonoxidative Glucose Metabolism In Older Men

By Ty Sevin, Aug 31, 2021

< Back to Benefits of Strength Training on Body Composition in Older Adults

J.P. Miller, M.A. Rubin, B. Nicklas, J.J. Smith, M.A. Smith, B.F. Hurley, FACSM, A.P. Goldberg• and R.E. Pratley*, University of Maryland and Baltimore VAMC, College Park and Baltimore, MD.

Objectives

Strength training has been shown to increase insulin sensitivity in older individuals. This study tries to determine whether the increase is due to improvements in glucose metabolism. Before and after a 16 week strength training program, 7 healthy, sedentary men aged 50-75 years underwent a 2-step glucose test consisting of high & low glucose. A caloric measurement was taken at the same time. Subjects trained 3x/week using Keiser K300 machines.

Results

Strength increased by 37%, but there were no significant changes in weight, fat free mass or aerobic capacity. However, body fat decreased by approximately 2%. Total glucose uptake was measured in the beginning of the study and 24 hours after the last strength training session. It increased at both the low and high insulin infusion rates of the 2-step glucose test. Strength training did not change oxidative (with oxygen) glucose metabolism, but non-oxidative (without oxygen) glucose metabolism increased 45% during the high insulin infusion.

Summary

These results suggest that the increase in insulin sensitivity (efficiency of use) is primarily due to increased non-oxidative glucose metabolism. An increase in insulin sensitivity has implication for diabetes prevention and control in older adults.

Keiser Equipment Used

leg press, chest press, leg curl, leg extension, lat pull down, shoulder press, upper back, hip abductor, triceps and abdominal machines.

Presented at the 40th Annual Meeting of the College of Sports Medicine, 1993. Published in Medicine and Science in Sports and Exercise, vol. 25(supplement),pg. S-70, 1993.

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