Document Detail


Comparison of treadmill walking and stair climbing over a range of exercise intensities in peripheral vascular occlusive disease.
MedLine Citation:
PMID:  8480912     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Although claudication pain and hemodynamic responses to exercise are related to the degree of arterial narrowing in the lower extremities, the nature of these responses to different exercise tasks and intensities is less clear. Thus, the purpose of this study was to compare claudication and hemodynamic responses to graded walking, level walking, and stair climbing over a range of exercise intensities. Ten patients with peripheral vascular occlusive disease performed five tests within each of the three exercise tasks. Similar values of oxygen consumption were obtained among exercise tasks at each intensity (p = ns). Time to onset of claudication pain and to maximal pain were similar among exercise tasks (p = ns), and both demonstrated a curvilinear decrease as intensity increased (p < 0.05). Foot transcutaneous oxygen tension, ankle systolic blood pressure, and ankle/brachial systolic pressure index were also similar among the three exercise tasks (p = ns); however, each decreased linearly as exercise intensity increased (p < 0.05). Thus, in peripheral vascular occlusive disease, the imbalance between oxygen delivery to the exercising lower extremity musculature and the local metabolic demand is similar during different weight-bearing activities. Second, even though the peripheral circulation is progressively impaired with increased exercise intensity, anaerobic metabolism in the ischemic lower extremity musculature may prevent a continual decline in claudication times. The clinical implication is that a more thorough assessment of the functional limitations imposed by claudication pain is not obtained by using different types of weight-bearing exercise tests as opposed to using on ly one type.
Authors:
A W Gardner; J S Skinner; N R Vaughan; C X Bryant; L K Smith
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Angiology     Volume:  44     ISSN:  0003-3197     ISO Abbreviation:  Angiology     Publication Date:  1993 May 
Date Detail:
Created Date:  1993-05-25     Completed Date:  1993-05-25     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0203706     Medline TA:  Angiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  353-60     Citation Subset:  IM; S    
Affiliation:
Exercise and Sport Research Institute, Arizona State University, Tempe.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Aged
Arterial Occlusive Diseases / physiopathology*
Blood Pressure
Exercise Test / methods*
Hemodynamics
Humans
Intermittent Claudication / physiopathology
Leg / blood supply
Oxygen / blood
Weight-Bearing
Chemical
Reg. No./Substance:
7782-44-7/Oxygen

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


Previous Document:  Echocardiographic Doppler evaluation of left ventricular diastolic function in athletes' hypertrophi...
Next Document:  Risk factors for varicose disease before and during pregnancy.