SOURCE-LINKED STUDY SUMMARY
Effects of testosterone and progressive resistance exercise in healthy, highly functioning older men with low-normal testosterone levels.
What was studied?
A randomized study examined testosterone supplementation, progressive resistance training and their effects on function, strength and body composition in older men.
What changed?
Testosterone improved fat-free mass and some body-composition outcomes. Resistance training improved function and strength, while the combination did not uniformly outperform training alone on functional measures.
Who was studied?
Healthy, highly functioning older men with low-normal testosterone levels were assigned to testosterone or placebo, with or without progressive resistance training.
Studied exposure
Testosterone supplementation and progressive resistance training were studied over 12 months in a factorial controlled design.
What remains uncertain?
The participants were relatively healthy older men with low-normal testosterone, so the results do not establish benefit for younger men or for nonmedical performance use.
Review record & corrections
Summary prepared: . Source scope: abstract. This is an AI-assisted source summary, not an independent clinician sign-off.
No public field-by-field revision history is available for this card yet. The date above is the summary date, not proof that every field was updated then.
Inspect the source · Correction policyResearch findings apply to the population and conditions studied. This educational summary is not a treatment recommendation or a formal assessment of study quality.
Original publication ↗ · DOI: 10.1210/jc.2013-2227