Document Detail

Energy cost, exercise intensity, and gait efficiency of standard versus rocker-bottom axillary crutch walking.
MedLine Citation:
PMID:  2374777     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to investigate differences in selected biomechanical and physiological measurements and subjective preferences for ambulation with the standard single-tip axillary crutch versus the rocker-bottom-type axillary crutch. Self-selected walking velocities (S-SWVs) and stride length for each crutch type were determined for a two-point, non-weight-bearing, swing-through gait in 24 healthy volunteers. Relative exercise intensity, oxygen uptake (VO2), and gait efficiency were assessed for each crutch type at both S-SWVs. Subjects negotiated two architectural barriers (stairs and ramp) and completed a subjective questionnaire concerning crutch preferences. Walking with either crutch type resulted in slower S-SWVs, greater VO2, higher relative exercise intensity, and reduced gait efficiency compared with values for normal unassisted ambulation. An analysis of variance for these variables revealed nonsignificant between-crutch differences. Based on the subjective data, a preference for the standard single-tip crutch was evident. Within the scope of the study, the results supported no apparent advantage relative to energy expenditure to using the rocker-bottom crutch.
D H Nielsen; J M Harris; Y M Minton; N S Motley; J L Rowley; C T Wadsworth
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Physical therapy     Volume:  70     ISSN:  0031-9023     ISO Abbreviation:  Phys Ther     Publication Date:  1990 Aug 
Date Detail:
Created Date:  1990-08-27     Completed Date:  1990-08-27     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0022623     Medline TA:  Phys Ther     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  487-93     Citation Subset:  AIM; IM    
Graduate Program in Physical Therapy, College of Medicine, University of Iowa, Iowa City 52242.
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MeSH Terms
Energy Metabolism / physiology*
Equipment Design
Gait / physiology*

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

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