alexa Physical Performance in Elderly Outpatients with Subclinical Hypothyroidism Compared with Euthyroid Counterparts
ISSN: 2167-7948

Journal of Thyroid Disorders & Therapy
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Research Article

Physical Performance in Elderly Outpatients with Subclinical Hypothyroidism Compared with Euthyroid Counterparts

Abraham A. Vázquez-García1, Lilia Cárdenas- Ibarra2*, Jesús Z. Villarreal-Pérez2, Sandra Meza1, Daniel Gamez1, Jorge Platt1, Guillermo Guajardo-Álvarez1, David Saucedo1 and Francisco Torres-Pérez1

1Geriatric Service, Universidad Autonoma de Nuevo Leon, University Hospital Dr. Jose E. Gonazalez, Monterrey, Mexico

2Endocrinology Service, Department of Internal Medicine, Universidad Autonoma de Nuevo Leon, Hospital Universitario Dr. Jose E. Gonazalez, Monterrey, MexicoA

*Corresponding Author:
Lilia Cárdenas-Ibarra
Endocrinology Service
Department of Internal Medicine
University Hospital Dr. Jose E. Gonazalez and Faculty of Medicine
Universidad Autonoma de Nuevo Leon. Av. Madero s/n
Colonia Mitras Centro, Monterrey, Nuevo Leon, Mexico C.P. 64460
Tel: 528183487871
E-mail: [email protected]

Received date: March 02, 2017; Accepted date: March 16, 2017; Published date: March 22, 2017

Citation: Vázquez-García AA, Cárdenas-Ibarra L, Villarreal-Pérez JZ, Meza S, Gamez D, et al. (2017) Physical Performance in Elderly Outpatients with Subclinical Hypothyroidism Compared with Euthyroid Counterparts. Thyroid Disorders Ther 6:212. doi: 10.4172/2167-7948.1000212

Copyright: © 2017 Vázquez-García AA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Background: There continues to be controversy on the clinical relevance of elderly mild subclinical hypothyroidism (SH), defined as a TSH elevation (4.0-9.99 μIU/L) with normal free thyroxin levels. Objective: To compare physical performance (PP) in elderly individuals with a TSH level above normal range versus normal counterparts. Design: Case-control study of ambulatory patients enrolled between January 2009 and December 2010. Setting: Outpatient geriatric service. Participants: Elderly individuals 65-84 years old (y/o) with SH and without conditions known to affect physical mobility. Measurements: The Short Physical Performance Battery (SPPB) was performed. The statistical analysis used the Mantel-Haenszel odds ratio (M-H-OR) method and Student’s t test with an alpha of 0.05. Results: Of the183 individuals screened, 28 (15.3%) had SH. The study response was 89.3%, thus 25 individuals with SH were compared to 27 euthyroid controls matched by age and sex. Gender and age influence SPPB, increased age was associated with <4 points balance: 13.8% in 65-74 y/o vs. 44.0% in 75-84 y/o, χ2=6.1, p<0.05; strength of dominant leg and SPPB score were higher in men than women (both, p<0.05). Body mass index was higher in SH than controls in men (29.3 ± 2 vs. 23.4 ± 3, t=3.2, <0.02). Women with SH had a worse SPPB score than the control group, M-H-OR=8.4, p<0.05. Confidence intervals of mean gait speed were 0.73-0.95 vs. 0.98-1.14 m/s, respectively with results in men lacking significance. Chair stands were longer in SH than controls: 13.5 ± 2.4 vs. 10.0 ± 1.7 seconds for men and 20.6 ± 12.6 vs. 14.8 ± 2.9 seconds for women, both p<0.05. Conclusions: These data suggests an association between SH and lower physcial performance. This warrants further study to define if T4 supplementation improves physcial performance, thus preventing frailty.

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