期刊
PHYSICAL THERAPY
卷 88, 期 11, 页码 1365-1374出版社
OXFORD UNIV PRESS INC
DOI: 10.2522/ptj.20080016
关键词
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资金
- National Heart, Lung, and Blood Institute [N01-HC-85079, N01-HC-85086, N01-HC-35129, N01-HC-15103, N01-HC-55222, N01-HC-75150, N01-HC-45133, U01 HL080295]
- National Institutes on Aging and American Federation of Aging Research Paul Beeson Career Development [1 K23 AG026766-01]
- University of Pittsburgh Older Americans Independence Center [1 P30 AG024827-01]
Background and Objective. Gait characteristics differ in individuals with diabetes compared with those without diabetes. Limited information regarding potential explanatory factors for this association exists. This study examined the association between diabetes and gait characteristics in older adults and explored potential explanatory factors. Design. A cross-sectional, observational study design was used. Methods. At the 1998-1999 clinic visit, 558 ambulatory older adults (mean age=79 years) from the Pittsburgh site of the Cardiovascular Health Study, had an assessment of their gait characteristics, diabetes, health status, cognition, mood, lower-extremity circulation and sensation, vision, lower-extremity strength (force-producing capacity), physical activity, and body mass index (BMI). A series of linear regression models. were developed to examine the association between diabetes and gait characteristics and to examine potential explanatory factors for the associations. Results. Diabetes was related to gait speed (beta=-.06 m/s); however, the association was partially explained by health status variables, cognition, mood, lower-extremity circulation and sensation, visual impairment, lower-extremity strength, physical activity, and BMI. Health status and lower-extremity strength each explained the greatest proportion of the association (beta reduced 66'% by each). Diabetes was related to step width (beta=.02 m), and the association could not be explained by the examined factors. Conclusions. Diabetes was associated with gait alterations in older adults. slowed gait speed appears to be secondary to the peripheral effect of the disease on other body systems. The effect of diabetes on step width was not explained in the analyses and may be related to peripheral motor nerve function or central influences of the disease, which could not be assessed in this study.
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