About the Center
    Physical Activity
    Resources and Bibliography
    Aging Network
    Long Term Care Institute
    Contact Us
    Subscribe to NAN
Association between change in bone mineral density and decline in usual walking speed in elderly community-dwelling Japanese women during 2 years of follow-up.
  OBJECTIVES: To investigate the association between change in bone mineral density (BMD) and change in usual walking speed in elderly community-living Japanese women during 2 years of follow-up. DESIGN: Longitudinal cohort study. SETTING: Community-based. PARTICIPANTS: A total of 182 women aged 70 to 84 who completed a baseline survey and a follow-up survey 2 years later. MEASUREMENTS: An interview, anthropometric measurements, blood analysis, and physical performance tests were performed at baseline and at follow-up 2 years later. BMD was evaluated using dual-energy X-ray absorptiometry measured at the forearm. Annual percentage changes in BMD and usual walking speed during the 2-year follow-up period were calculated; annual percentage changes in BMD were summarized in quartiles. The association between annual bone loss rate and decline in usual walking speed was analyzed using multiple linear regression adjusted for changes in muscle strength, balance capability, and other potential confounders. RESULTS: Change in BMD was significantly related to change in usual walking speed during the 2-year follow-up. After multivariate adjustment, usual walking speed declined significantly more in elderly women whose BMD decreased (-3.5% change in walking speed in the first quartile of percentage change in BMD and -3.1% in the second quartile) than in women whose BMD increased (+1.5% in fourth quartile). CONCLUSION: Elderly women whose BMD decreased had a significantly greater decline in usual walking speed than women whose BMD increased, even after multivariate adjustment of potential confounders.
Type Journal - Bibliographic Record
Resource Type
(If applicable)
Author(s) Kwon J, Suzuki T, Yoshida H, Kim H, Yoshida Y, Iwasa H, Sugiura M, Furuna T.
Book Publisher
Journal Publisher J Am Geriat Soc
Year 2007
Pages 240-4
Article Title
Edition 55
Contact Information
(If applicable)
(If applicable)
     »  Search Resource Center
       Type Keyword:

National Resource Center on Nutrition, Physical Activity & Aging
| Florida International University, OE 200, Miami, FL 33199
Phone: 305-348-1517 | Fax: 305-348-1518 | E-mail: nutrionandaging@fiu.edu

This website is supported, in part, by a grant from the Administration on Aging, Department of Health and Human
Services (DHHS). Grantees undertaking projects under government sponsorship are encouraged to express freely their
findings and conclusions. Points of view or opinions do not, therefore, reflect official DHHS policy.