Document Detail

A comparison of the visual analogue scale and modified Borg scale for the measurement of dyspnoea during exercise.
MedLine Citation:
PMID:  2924519     Owner:  NLM     Status:  MEDLINE    
1. The intensity of breathlessness during exercise was measured in ten normal subjects using a visual analogue scale (VAS) and a Borg scale to compare the use of the scales and their repeatability, both within the duration of a period of exercise and between tests. For each scale, subjects performed two exercise tests separated by a period of 2-6 weeks. Each exercise test consisted of two cycles of progressively increasing and decreasing workload. 2. All subjects felt confidently able to use both scales to quantify their feelings of breathlessness exclusively of other sensation. Equal preference was expressed for use of a particular scale. 3. With both scales there was a large intersubject variation in the relationship between dyspnoea score and minute ventilation (VE) (P less than 0.01), and in the range of the scale used. 4. There was a good correlation between the VAS and Borg scores at each level of VE (r2 = 0.71), but the VAS score was used over a wider range than the Borg score. 5. The relationship between VE and the dyspnoea score measured by the two techniques was predominantly linear. The mean r2 for VAS score/VE was 0.68 (SD 0.19) and for Borg score/VE the mean r2 was 0.75 (SD 0.13). 6. The relationships VAS score/VE and Borg score/VE were unaffected by the direction in which the workload was varied (P greater than 0.05). 7. VE, measured at each work rate, did not differ between the two cycles (P greater than 0.05) or between the 2 days (P greater than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
R C Wilson; P W Jones
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical science (London, England : 1979)     Volume:  76     ISSN:  0143-5221     ISO Abbreviation:  Clin. Sci.     Publication Date:  1989 Mar 
Date Detail:
Created Date:  1989-05-09     Completed Date:  1989-05-09     Revised Date:  2009-09-29    
Medline Journal Info:
Nlm Unique ID:  7905731     Medline TA:  Clin Sci (Lond)     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  277-82     Citation Subset:  IM    
Department of Medicine 1, St George's Hospital Medical School, London.
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MeSH Terms
Dyspnea / diagnosis*,  psychology
Exercise Test
Perception / physiology
Physical Exertion*
Psychophysiology / methods*
Reproducibility of Results
Grant Support
//Wellcome Trust

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