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Optoelectronic plethysmography compared to spirometry during maximal exercise.
MedLine Citation:
PMID:  23022440     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The purpose of this study was to compare simultaneous measurements of tidal volume (Vt) by optoelectronic plethysmography (OEP) and spirometry during a maximal cycling exercise test to quantify possible differences between methods. Vt measured simultaneously by OEP and spirometry was collected during a maximal exercise test in thirty healthy participants. The two methods were compared by linear regression and Bland-Altman analysis at submaximal and maximal exercise. The average difference between the two methods and the mean percentage discrepancy were calculated. Submaximal exercise (SM) and maximal exercise (M) Vt measured by OEP and spirometry had very good correlation, SM R=0.963 (p<0.001),M R=0.982 (p<0.001) and high degree of common variance, SM R(2)=0.928,M R(2)=0.983. Bland-Altman analysis demonstrated that during SM, OEP could measure exercise Vt as much as 0.134L above and -0.025L below that of spirometry with an average difference of. For M, OEP could measure exercise Vt as much as 0.188L above and -0.017L below that of spirometry. The discrepancy between measurements was -2.0± 7.2% at SM and -2.4±3.9% at M. In conclusion, Vt measurements at during exercise by OEP and spirometry are closely correlated and the difference between measurements was insignificant.
Authors:
Aimee M Layton; Sienna L Moran; Carol Ewing Garber; Hilary F Armstrong; Robert C Basner; Byron M Thomashow; Matthew N Bartels
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-25
Journal Detail:
Title:  Respiratory physiology & neurobiology     Volume:  -     ISSN:  1878-1519     ISO Abbreviation:  Respir Physiol Neurobiol     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-10-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101140022     Medline TA:  Respir Physiol Neurobiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
Affiliation:
Department of Biobehavioral Sciences, Teachers College, Columbia University, 525 120(th) St. NY, NY, 10027 USA; Department of Surgery, Columbia University Medical Center, 622W 168(th) St, NY, NY, 10032 USA. Electronic address: aml2135@columbia.edu.
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