Document Detail


Determinants of peak V(O2) in peripheral arterial occlusive disease patients.
MedLine Citation:
PMID:  10843347     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Peripheral arterial occlusive disease (PAOD) patients with intermittent claudication are functionally limited and deconditioned. This study examined whether peak aerobic capacity (V(O2) peak) was associated with PAOD severity, muscle mass, and comorbidities in 109 PAOD patients (93 men and 16 women) aged 48-86 years. The V(O2) peak (1.12+/-0.34 L/min), percentage body fat (30.6+/-8.3%), lean tissue mass of the total body (51.4+/-8.4 kg), lean tissue mass of the legs (16.6+/-3.0 kg), and appendicular skeletal mass (22.8+/-4.2 kg) were determined. The lean tissue mass of the total body (r = .44), lean tissue of the legs (r = .43) and resting ankle/brachial systolic pressure index (ABI; r = .41) correlated with peak V(O2) (all p < .001). None of the comorbidity variables (obesity, arthritis, coronary artery disease, hypertension, diabetes, and smoking history) were significantly associated with peak V(O2) except smoking status. The final model for the prediction of peak V(O2) included lean tissue mass of the legs, resting ABI, smoking status, and ABI x smoking status (r2 = .37,p < .001). In older patients with intermittent claudication, lean tissue mass is an important determinant of physical performance independent of PAOD severity and smoking status. Prevention of muscle atrophy may preserve ambulatory function and peak exercise capacity in older PAOD patients.
Authors:
A S Ryan; L I Katzel; A W Gardner
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The journals of gerontology. Series A, Biological sciences and medical sciences     Volume:  55     ISSN:  1079-5006     ISO Abbreviation:  J. Gerontol. A Biol. Sci. Med. Sci.     Publication Date:  2000 Jun 
Date Detail:
Created Date:  2000-06-27     Completed Date:  2000-06-27     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9502837     Medline TA:  J Gerontol A Biol Sci Med Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  B302-6     Citation Subset:  AIM; IM    
Affiliation:
Department of Medicine, University of Maryland School of Medicine, and the Geriatric Research, Education and Clinical Center, Baltimore, USA. alice@grecc.umaryland.edu
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Arterial Occlusive Diseases / metabolism*
Body Mass Index
Female
Humans
Male
Middle Aged
Oxygen / metabolism*
Peripheral Vascular Diseases / metabolism*
Severity of Illness Index
Grant Support
ID/Acronym/Agency:
KO1-A600747//PHS HHS; KO1-AG-00657/AG/NIA NIH HHS; P60-AG12583/AG/NIA NIH HHS
Chemical
Reg. No./Substance:
7782-44-7/Oxygen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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