Document Detail

Walking performance and cardiovascular response: associations with age and morbidity--the Health, Aging and Body Composition Study.
MedLine Citation:
PMID:  12902529     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The long-distance corridor walk is a timed 400-meter walk test used to assess walking endurance in well-functioning men and women aged 70-79 in the Health, Aging and Body Composition Study. METHODS: We examined walking time along with heart rate and blood pressure response in relationship to prevalent chronic conditions, weight, physical activity, and markers of subclinical disease. Of 3075 participants, 2324 (76%) completed the test with heart rate and blood pressure responses in the range expected for a moderate level of exertion. RESULTS: Slower walking time was influenced by both clinical and subclinical disease, and also was strongly related to both low and high body weight and low self-reported physical activity. Heart rate and blood pressure responses were higher with several clinical and subclinical diseases, but heart rate response and recovery were more strongly related to walking time than to disease. Higher body mass index and lower physical activity were associated with greater heart rate response and recovery. CONCLUSIONS: The independent contribution of both clinical and subclinical disease to walking time supports the use of walking tests as a summary measure of disease in older adults. The independent association of walking time with physical activity suggests that it is sensitive to levels of fitness as well. Together these findings show that walking performance is a valid indicator of physiologic reserve in older adults.
Anne B Newman; Catherine L Haggerty; Stephen B Kritchevsky; Michael C Nevitt; Eleanor M Simonsick;
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The journals of gerontology. Series A, Biological sciences and medical sciences     Volume:  58     ISSN:  1079-5006     ISO Abbreviation:  J. Gerontol. A Biol. Sci. Med. Sci.     Publication Date:  2003 Aug 
Date Detail:
Created Date:  2003-08-06     Completed Date:  2003-09-16     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9502837     Medline TA:  J Gerontol A Biol Sci Med Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  715-20     Citation Subset:  AIM; IM    
Division of Geriatric Medicine, Department of Medicine, University of Pittsburgh, Pennsylvania 15213, USA.
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MeSH Terms
Aging / physiology*
Blood Pressure / physiology
Body Mass Index
Body Weight
Cardiovascular Physiological Phenomena*
Health Status
Heart Rate / physiology
Motor Activity / physiology
Walking / physiology*
Grant Support
Comment In:
J Gerontol A Biol Sci Med Sci. 2003 Aug;58(8):712-4   [PMID:  12902528 ]

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