Association between sarcopenia and erectile dysfunction in older males.
Level 4 - case-series / case-control
Cross-sectional observational study
PubMed 34998130 · doi:10.1016/j.archger.2021.104619
What was done
A cross-sectional study evaluated 193 men aged 60 years and older (median age 71.9, range 60–93). Sarcopenia was defined using European Working Group on Sarcopenia in Older People 2 (EWGSOP2) diagnostic criteria, assessing muscle mass, muscle strength, and gait speed. Erectile dysfunction (ED) was measured via the 5-item International Index of Erectile Function (IIEF-5) questionnaire and categorized into no ED, mild-moderate ED, and moderate-severe ED. Total testosterone was measured, and multivariate analyses adjusted for age and the Charlson Comorbidity Index.
What was found
Sarcopenia prevalence was 24.9%, and moderate-severe ED prevalence was 49.2%. Moderate-severe ED was more frequent in men with sarcopenia than those without (70.8% vs 42.1%, p < 0.001). After adjusting for age and Charlson Comorbidity Index, sarcopenia remained significantly associated with moderate-severe ED (OR 2.71, 95% CI 1.29–5.73, p = 0.009). Multivariate analysis of individual components showed significant associations with moderate-severe ED for muscle strength (OR 0.93, 95% CI 0.89–0.98) and muscle mass (OR 0.68, 95% CI 0.54–0.86), but not for gait speed.
Why it matters
This study links sarcopenia and its core components (reduced muscle mass and strength) to higher rates of clinically significant erectile dysfunction in older men, highlighting shared physical decline pathways.
Limits
The cross-sectional design precludes establishing temporal order or causality. The sample size was modest (193 participants from a single study population), and potential confounders such as specific medications, smoking status, or psychological factors were not detailed in the abstract.
Cited by
- partial Men who maintain their muscle mass through resistance exercise are three times less likely to develop erectile dysfunction.