当前位置： SCI文献检索 > JOURNAL OF THE AMERICAN GERIATRICS SOCIETY期刊下所有文献 > Low serum vitamin d does not predict new disability or loss of muscle strength in older women.

Low serum vitamin d does not predict new disability or loss of muscle strength in older women.

Abstract：

OBJECTIVES:To determine whether serum levels of 25-hydroxyvitamin D (25(OH)D) and parathyroid hormone (PTH) predict accelerated decline in muscular strength or onset of new disability in mobility and upper extremity functioning over a 3-year follow-up. DESIGN:A community-based prospective cohort study. PARTICIPANTS:Six hundred twenty-eight moderately to severely disabled women aged 65 and older living in the community. MEASUREMENTS:Subjects were divided into three groups of baseline 25(OH)D serum levels (deficiency: <25 nmol/L; low normal: 25-52 nmol/L; high normal: > or =53 nmol/L) and into tertiles of PTH levels. Objective performance measures (hip flexor, knee extensor, and grip strengths; walking speed; and time for repeated chair stands) and disability in activities involving mobility and upper extremity function were assessed at baseline and every 6 months for 3 years. Decline in performance measures and onset of new disability were compared between 25(OH)D and PTH groups using random effects models and proportional hazards models, respectively, while adjusting for age, race, education, body mass index, baseline performance, and chronic conditions. RESULTS:The annual rate of decline over 3 years in muscular strength, walking speed, and time to perform repeated chair stands was similar across 25(OH)D groups. We observed a nonsignificantly faster decline in proximal muscle strength and walking speed with increasing PTH levels. There was no association for either measure between serum levels and the risk of incident disability in activities relating to mobility and upper extremity function. CONCLUSION:This study does not support the hypothesis that vitamin D deficiency is associated with loss in muscular strength and decline in mobility and upper extremity functioning over time in older women who were moderately to severely disabled at baseline.

journal_name

J Am Geriatr Soc

journal_title

Journal of the American Geriatrics Society

authors

Verreault R,Semba RD,Volpato S,Ferrucci L,Fried LP,Guralnik JM

doi

10.1046/j.1532-5415.2002.50219.x

subject

Has Abstract

pub_date

2002-05-01 00:00:00

pages

912-7

issue

eissn

0002-8614

issn

1532-5415

pii

jgs50219

journal_volume

pub_type

杂志文章

在线工具

Low serum vitamin d does not predict new disability or loss of muscle strength in older women.