Document Detail

Cardiovascular responses during nonweight-bearing and touchdown ambulation.
MedLine Citation:
PMID:  6691048     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to compare selected physiological responses of nonweight-bearing (NWB) and touchdown (TD) ambulation using axillary crutches. Ten subjects walked at a constant rate for five minutes at a mean velocity of 48.42 m/min for NWB and 48.95 m/min for TD. Weight bearing was controlled with an augmented sensory feedback device. Heart rate, blood pressure, oxygen consumption, and perceived exertion were measured. Myocardial oxygen consumption was estimated from heart rate alone and from the double product of systolic blood pressure and heart rate. Oxygen consumption and systolic blood pressure were similar for NWB and TD. Heart rate and myocardial oxygen consumption were significantly higher during NWB, and this was attributed to greater upper and lower extremity isometric exercise required for NWB versus TD ambulation. Physiologically, TD may be preferable to NWB for persons who are deconditioned or limited in their exercise capacity.
B P Kathrins; S D O'Sullivan
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Physical therapy     Volume:  64     ISSN:  0031-9023     ISO Abbreviation:  Phys Ther     Publication Date:  1984 Jan 
Date Detail:
Created Date:  1984-02-15     Completed Date:  1984-02-15     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0022623     Medline TA:  Phys Ther     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  14-8     Citation Subset:  AIM; IM    
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MeSH Terms
Blood Pressure
Body Weight*
Cardiovascular Physiological Phenomena*
Heart Rate
Oxygen Consumption
Physical Exertion*

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

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