Document Detail


Characteristics of people with chronic lung disease who rest during the six-minute walk test.
MedLine Citation:
PMID:  21044724     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: To examine the incidence of resting during the 6-minute-walk test (6MWT) in patients with chronic lung disease (CLD) and to explore differences in functional exercise capacity and response to pulmonary rehabilitation (PR) between resters and nonresters.
DESIGN: Retrospective chart review.
SETTING: Inpatient PR program.
PARTICIPANTS: Individuals (N=211) who performed the 6MWT at admission and discharge from PR.
INTERVENTIONS: Not applicable.
MAIN OUTCOME MEASURES: Primary outcomes were total distance walked (6-minute walk distance [6MWD]) and rest frequency and duration. Secondary outcomes were walking speed, end-test dyspnea, and the Chronic Respiratory Questionnaire (CRQ).
RESULTS: At admission, 45 people (21%) rested 1 to 4 times during the 6MWT (total duration, 105±80s) and 166 people walked continuously. At discharge, 9 people continued to rest (total duration, 28±55s). At admission, nonresters walked 315±93m, whereas resters walked 197±83m (P<.0001), and 6MWD increased in both groups after PR (P<.0001). Nonresters increased their walking speed at discharge, but resters did not (interaction P<.001). At admission, the mastery domain of the CRQ was 0.8 point lower in resters (3.7±1.2) compared with nonresters (4.5±1.7; P=.01). Resters' end-test dyspnea scores decreased from 5.7±0.3 to 4.3±0.2 from admission to discharge, whereas nonresters' end-test dyspnea scores did not significantly change from 4.5±0.2 to 4.2±0.2 at discharge (interaction P<.05).
CONCLUSIONS: One in 5 individuals with CLD rest during the 6MWT. Decreasing rest duration or increasing walking speed reflects different strategies used to improve 6MWD after rehabilitation, both suggesting a positive effect of PR. This may be related to improvements in an individual's sense of control over dyspnea. Future work should investigate potential factors related to resting during the 6MWT.
Authors:
Rebecca Wong; Kathryn M Sibley; Munira Hudani; Samantha Roeland; Marco Visconti; Joey Balsano; Kylie Hill; Dina Brooks
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Archives of physical medicine and rehabilitation     Volume:  91     ISSN:  1532-821X     ISO Abbreviation:  Arch Phys Med Rehabil     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-03     Completed Date:  2010-12-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985158R     Medline TA:  Arch Phys Med Rehabil     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1765-9     Citation Subset:  AIM; IM    
Copyright Information:
Copyright © 2010 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.
Affiliation:
Department of Physical Therapy, University of Toronto, ON, Canada.
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MeSH Terms
Descriptor/Qualifier:
Aged
Body Mass Index
Disability Evaluation*
Dyspnea / epidemiology
Exercise Test / statistics & numerical data*
Exercise Tolerance / physiology*
Female
Follow-Up Studies
Forced Expiratory Volume
Humans
Incidence
Inpatients
Male
Pulmonary Disease, Chronic Obstructive / physiopathology*,  rehabilitation
Questionnaires
Reproducibility of Results
Rest / physiology*
Retrospective Studies
Walking / physiology*

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


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