期刊
AGING MALE
卷 14, 期 4, 页码 213-219出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/13685538.2011.606514
关键词
Subclinical hyperthyroidism; physical function; elderly male
资金
- Italian Ministry of Health [ICS 110.1\RS97.71]
- U.S. National Institute on Aging [263_MD_9164_13, 263_MD_821336]
- MURST, Rome [FIL0774249]
Introduction: In the adult, subclinical hyperthyroidism (Shyper) may alter skeletal muscle mass and strength. However, whether these effects are present in elderly subjects is not known. We explored the relationship between mild hyperthyroidism and physical function in a population-based sample of older persons. Methods: In a cross-sectional analysis, calf muscle cross-sectional area (CMA), handgrip strength, nerve conduction velocity (NCV), and Short Physical Performance Battery (SPPB) scores were compared between 364 euthyroid (Eut) and 28 Shyper men as well as between 502 Eut and 39 Shyper women. In a longitudinal analysis, we evaluated the relationship between baseline plasma TSH, FT3 and FT4 and the 3-year change in SPPB score in 304 men and 409 women who were euthyroid at enrolment. Results: At the cross-sectional analysis, Shyper men, but not women, had a significantly (p = 0.02) lower SPPB score than Eut controls, although with comparable CMA, grip strength and NCV, and were more likely to have poor physical performance (odds ratio = 2.97, p < 0.05). Longitudinal analysis showed that in Eut men higher baseline FT4 was significantly (p = 0.02) predictive of a lower SPPB score at the 3-year follow-up. Conclusion: Even a modest thyroid hormone excess is associated with a reduced physical function in elderly men.
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