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Gonadal status and physical performance in older men
Marcello Maggio1, Gian Paolo Ceda, Fulvio Lauretani
1Department of Internal Medicine and Biomedical Sciences, Section of Geriatrics, University of Parma, Italy. marcellomaggio2001@yahoo.it
Summary
In older men, lower testosterone levels are linked to reduced muscle strength and hemoglobin. This gonadal status is an independent factor influencing physical performance determinants.
Area of Science:
- Gerontology
- Endocrinology
- Sports Medicine
Background:
- Testosterone plays a role in muscle health and physical function in aging men.
- Understanding the relationship between gonadal status and physical performance is crucial for healthy aging.
Purpose of the Study:
- To investigate the association between different levels of gonadal status (testosterone levels) and objective measures of physical performance in older men.
Main Methods:
- The study analyzed data from 455 older men (≥ 65 years) from the InCHIANTI study.
- Participants were categorized into severely hypogonadal, moderately hypogonadal, and eugonadal groups based on total testosterone levels.
- Linear models assessed relationships between gonadal status and physical performance determinants like hand grip strength and Short Physical Performance Battery (SPPB) scores.
Main Results:
- Severely hypogonadal men were older and had significantly lower hemoglobin levels, hand grip strength, and SPPB scores compared to eugonadal men.
- Muscle strength and hemoglobin showed a significant trend across the three testosterone groups.
- No significant association was found between testosterone levels and calf muscle mass or walking speed.
Conclusions:
- Gonadal status, specifically testosterone levels, is independently associated with key determinants of physical performance in older men, including muscle strength and hemoglobin.
- These findings highlight the importance of hormonal status in maintaining physical function during aging.
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