Cited by 140Hormonal and reproductive studiesNutrition and Health in AgingMuscle metabolism and nutrition

Effects of Testosterone and Progressive Resistance Exercise in Healthy, Highly Functioning Older Men With Low-Normal Testosterone Levels

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Hildreth, Kerry L., Barry, Daniel W., Moreau, Kerrie L., Vande Griend, Joseph, Meacham, Randall B., Nakamura, Tammie, Wolfe, Pamela, Kohrt, Wendy M. +5 more·2013·The Journal of Clinical Endocrinology & Metabolism

Abstract

Aging in men is associated with reduced testosterone (T) levels and physiological changes leading to frailty, but the benefits of T supplementation are inconclusive. We studied the effects of T supplementation with and without progressive resistance training (PRT) on functional performance, strength, and body composition. We recruited 167 generally healthy community-dwelling older men (66 ± 5 years) with low-normal baseline total T levels (200–350 ng/dL). Subjects were randomized to placebo or transdermal T gel [2 doses targeting either a lower (400–550 ng/dL) or higher (600–1000 ng/dL) T range] and to either PRT or no exercise for 12 months. The primary outcome was functional performance, whereas secondary outcomes were strength and body composition. A total of 143 men completed the study. At 12 months, total T was 528 ± 287 ng/dL in subjects receiving any T and 287 ± 65 ng/dL in the placebo group. In the PRT group, function and strength were not different between T- and placebo-treated subjects, despite greater improvements in fat mass (P = .04) and fat-free mass (P = .01) with T. In the non-PRT group, T did not improve function but improved fat mass (P = .005), fat-free mass (P = .03), and upper body strength (P = .03) compared with placebo. There were fewer cardiovascular events in the T-treated groups compared with placebo. T supplementation was well tolerated and improved body composition but had no effect on functional performance. T supplementation improved upper body strength only in nonexercisers compared with placebo.

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  • Adding testosterone supplementation to progressive resistance training improved body composition, including reduced fat mass and improved lean mass.

    “The addition of pharmacotherapy, such as testosterone supplementation, to progressive resistance training augmented the improvements in body composition, including reduced fat mass and improved lean mass357.”
  • Data on the effect of testosterone supplementation on muscle strength and function are conflicting.

    “There are conflicting data on the effect of testosterone supplementation on muscle strength and function50,51,357,414.”

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Authors
Hildreth, K. L., Barry, D. W., Moreau, K. L., Vande Griend, J., Meacham, R. B., Nakamura, T., Wolfe, P., Kohrt, W. M., Ruscin, J. M., Kittelson, J., Cress, M. E., Ballard, R., & Schwartz, R. S.
Affiliations
  • Department of Medicine (K.L.H., K.L.M., T.N., W.M.K., R.S.S.),Aurora, Colorado 80045;
  • Kaiser Permanente (US)
  • University of Colorado School of Medicine; University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences (J.V.G.); Aurora, Colorado 80045;
  • Division of Geriatric Medicine, and Division of Urology (R.B.M.), Aurora, Colorado 80045;
  • Colorado School of Public Health (US)
  • Southern Illinois University Edwardsville (US)
  • University of Georgia (US)
  • Colorado Sleep Medicine (R.B.), Denver, Colorado 80218
Corresponding author
Hildreth, Kerry L.
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2013-05-01
Volume
98
Issue
5
Pages
1891-1900
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W2128339742
Cited by
140
References
46
Citations by year
2026: 3 · 2025: 4 · 2024: 12 · 2023: 7 · 2022: 9 · 2021: 10 · 2020: 16 · 2019: 9 · 2018: 19 · 2017: 15 · 2016: 13 · 2015: 9 · 2014: 12 · 2013: 2
FWCI
9.40
Type
journal article
Language
en
Open access
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
Funders
National Institute on Aging
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
testosterone supplementation, transdermal testosterone gel, progressive resistance training, older men, functional performance, muscle strength, body composition, fat-free mass, fat mass, frailty, cardiovascular events, aging

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