A Randomized Controlled Trial of Resistance Exercise Training to Improve Glycemic Control in Older Adults With Type 2 Diabetes

By Ty Sevin, Aug 31, 2021

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Castaneda, Carmen: Layne, Jennifer E; Munoz-Orians, Leda; Gordon, Patricia L; Walsmith, Joseph; Foldvari, Mona; Roubenoff, Ronenn; Tucker, Katherine; Nelson, Miriam

Objectives

To determine the efficacy of high intensity progressive resistance training (PRT) on glycemic control in older adults with type 2 diabetes, the researchers performed a 16-week randomized controlled trial. Sixty-two Latino older adults (40 women and 22 men; age 66+/- 8 years) with type 2 diabetes were randomly assigned to supervised PRT along with standard care, or a control group who received only standard care. Glycemic control, metabolic syndrome abnormalities, body composition, and muscle glycogen stores were determined before and after the intervention.

Results

Sixteen weeks of PRT (3Xs/week) resulted in reduced plasma glycosylated hemoglobin levels (approximately 8.7 to 7.6), increased muscle glycogen stores (approximately 60.3 to 79.1), and reduced the dose of prescribed diabetes medication in 72% of exercisers. Control subjects showed no change in glycosylated hemoglobin, a reduction in muscle glycogen (approximately 61.4 to 47.2) and a 42% increase in diabetes medications. PRT subjects versus control subjects also increased lean mass, systolic blood pressure, and decreased trunk fat mass.

Summary

This study demonstrates that high intensity PRT is effective in the management of diabetes in a high-risk population of older adults with poor glycemic control. Resistance training significantly improved glycemic control, increased fat free mass, reduced the requirement for diabetes medications, reduced abdominal fat and systolic blood pressure, and increased muscle strength and spontaneous physical activity.

Keiser Equipment Used

Chest press, leg press, upper back, knee extension, knee flexion 

Published in Diabetes Care, Volume 25, number 12, December 2002

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