An Equation for the Prediction of Oxygen Consumption in a Brazilian Population

Detalhes bibliográficos
Autor(a) principal: Almeida,Antonio Eduardo Monteiro de
Data de Publicação: 2014
Outros Autores: Stefani,Charles de Moraes, Nascimento,João Agnaldo do, Almeida,Narla Miranda de, Santos,Amilton da Cruz, Ribeiro (in memoriam),Jorge Pinto, Stein,Ricardo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Arquivos Brasileiros de Cardiologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2014002200005
Resumo: Background: The equations predicting maximal oxygen uptake (VO2max or peak) presently in use in cardiopulmonary exercise testing (CPET) softwares in Brazil have not been adequately validated. These equations are very important for the diagnostic capacity of this method. Objective: Build and validate a Brazilian Equation (BE) for prediction of VO2peak in comparison to the equation cited by Jones (JE) and the Wasserman algorithm (WA). Methods: Treadmill evaluation was performed on 3119 individuals with CPET (breath by breath). The construction group (CG) of the equation consisted of 2495 healthy participants. The other 624 individuals were allocated to the external validation group (EVG). At the BE (derived from a multivariate regression model), age, gender, body mass index (BMI) and physical activity level were considered. The same equation was also tested in the EVG. Dispersion graphs and Bland-Altman analyses were built. Results: In the CG, the mean age was 42.6 years, 51.5% were male, the average BMI was 27.2, and the physical activity distribution level was: 51.3% sedentary, 44.4% active and 4.3% athletes. An optimal correlation between the BE and the CPET measured VO2peak was observed (0.807). On the other hand, difference came up between the average VO2peak expected by the JE and WA and the CPET measured VO2peak, as well as the one gotten from the BE (p = 0.001). Conclusion: BE presents VO2peak values close to those directly measured by CPET, while Jones and Wasserman differ significantly from the real VO2peak.
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spelling An Equation for the Prediction of Oxygen Consumption in a Brazilian PopulationOxygen ConsumptionForecastingRespiratory Function TestsPopulationBrazil Background: The equations predicting maximal oxygen uptake (VO2max or peak) presently in use in cardiopulmonary exercise testing (CPET) softwares in Brazil have not been adequately validated. These equations are very important for the diagnostic capacity of this method. Objective: Build and validate a Brazilian Equation (BE) for prediction of VO2peak in comparison to the equation cited by Jones (JE) and the Wasserman algorithm (WA). Methods: Treadmill evaluation was performed on 3119 individuals with CPET (breath by breath). The construction group (CG) of the equation consisted of 2495 healthy participants. The other 624 individuals were allocated to the external validation group (EVG). At the BE (derived from a multivariate regression model), age, gender, body mass index (BMI) and physical activity level were considered. The same equation was also tested in the EVG. Dispersion graphs and Bland-Altman analyses were built. Results: In the CG, the mean age was 42.6 years, 51.5% were male, the average BMI was 27.2, and the physical activity distribution level was: 51.3% sedentary, 44.4% active and 4.3% athletes. An optimal correlation between the BE and the CPET measured VO2peak was observed (0.807). On the other hand, difference came up between the average VO2peak expected by the JE and WA and the CPET measured VO2peak, as well as the one gotten from the BE (p = 0.001). Conclusion: BE presents VO2peak values close to those directly measured by CPET, while Jones and Wasserman differ significantly from the real VO2peak. Sociedade Brasileira de Cardiologia - SBC2014-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2014002200005Arquivos Brasileiros de Cardiologia v.103 n.4 2014reponame:Arquivos Brasileiros de Cardiologia (Online)instname:Sociedade Brasileira de Cardiologia (SBC)instacron:SBC10.5935/abc.20140137info:eu-repo/semantics/openAccessAlmeida,Antonio Eduardo Monteiro deStefani,Charles de MoraesNascimento,João Agnaldo doAlmeida,Narla Miranda deSantos,Amilton da CruzRibeiro (in memoriam),Jorge PintoStein,Ricardoeng2015-01-06T00:00:00Zoai:scielo:S0066-782X2014002200005Revistahttp://www.arquivosonline.com.br/https://old.scielo.br/oai/scielo-oai.php||arquivos@cardiol.br1678-41700066-782Xopendoar:2015-01-06T00:00Arquivos Brasileiros de Cardiologia (Online) - Sociedade Brasileira de Cardiologia (SBC)false
dc.title.none.fl_str_mv An Equation for the Prediction of Oxygen Consumption in a Brazilian Population
title An Equation for the Prediction of Oxygen Consumption in a Brazilian Population
spellingShingle An Equation for the Prediction of Oxygen Consumption in a Brazilian Population
Almeida,Antonio Eduardo Monteiro de
Oxygen Consumption
Forecasting
Respiratory Function Tests
Population
Brazil
title_short An Equation for the Prediction of Oxygen Consumption in a Brazilian Population
title_full An Equation for the Prediction of Oxygen Consumption in a Brazilian Population
title_fullStr An Equation for the Prediction of Oxygen Consumption in a Brazilian Population
title_full_unstemmed An Equation for the Prediction of Oxygen Consumption in a Brazilian Population
title_sort An Equation for the Prediction of Oxygen Consumption in a Brazilian Population
author Almeida,Antonio Eduardo Monteiro de
author_facet Almeida,Antonio Eduardo Monteiro de
Stefani,Charles de Moraes
Nascimento,João Agnaldo do
Almeida,Narla Miranda de
Santos,Amilton da Cruz
Ribeiro (in memoriam),Jorge Pinto
Stein,Ricardo
author_role author
author2 Stefani,Charles de Moraes
Nascimento,João Agnaldo do
Almeida,Narla Miranda de
Santos,Amilton da Cruz
Ribeiro (in memoriam),Jorge Pinto
Stein,Ricardo
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Almeida,Antonio Eduardo Monteiro de
Stefani,Charles de Moraes
Nascimento,João Agnaldo do
Almeida,Narla Miranda de
Santos,Amilton da Cruz
Ribeiro (in memoriam),Jorge Pinto
Stein,Ricardo
dc.subject.por.fl_str_mv Oxygen Consumption
Forecasting
Respiratory Function Tests
Population
Brazil
topic Oxygen Consumption
Forecasting
Respiratory Function Tests
Population
Brazil
description Background: The equations predicting maximal oxygen uptake (VO2max or peak) presently in use in cardiopulmonary exercise testing (CPET) softwares in Brazil have not been adequately validated. These equations are very important for the diagnostic capacity of this method. Objective: Build and validate a Brazilian Equation (BE) for prediction of VO2peak in comparison to the equation cited by Jones (JE) and the Wasserman algorithm (WA). Methods: Treadmill evaluation was performed on 3119 individuals with CPET (breath by breath). The construction group (CG) of the equation consisted of 2495 healthy participants. The other 624 individuals were allocated to the external validation group (EVG). At the BE (derived from a multivariate regression model), age, gender, body mass index (BMI) and physical activity level were considered. The same equation was also tested in the EVG. Dispersion graphs and Bland-Altman analyses were built. Results: In the CG, the mean age was 42.6 years, 51.5% were male, the average BMI was 27.2, and the physical activity distribution level was: 51.3% sedentary, 44.4% active and 4.3% athletes. An optimal correlation between the BE and the CPET measured VO2peak was observed (0.807). On the other hand, difference came up between the average VO2peak expected by the JE and WA and the CPET measured VO2peak, as well as the one gotten from the BE (p = 0.001). Conclusion: BE presents VO2peak values close to those directly measured by CPET, while Jones and Wasserman differ significantly from the real VO2peak.
publishDate 2014
dc.date.none.fl_str_mv 2014-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2014002200005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2014002200005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/abc.20140137
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Sociedade Brasileira de Cardiologia - SBC
publisher.none.fl_str_mv Sociedade Brasileira de Cardiologia - SBC
dc.source.none.fl_str_mv Arquivos Brasileiros de Cardiologia v.103 n.4 2014
reponame:Arquivos Brasileiros de Cardiologia (Online)
instname:Sociedade Brasileira de Cardiologia (SBC)
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instname_str Sociedade Brasileira de Cardiologia (SBC)
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reponame_str Arquivos Brasileiros de Cardiologia (Online)
collection Arquivos Brasileiros de Cardiologia (Online)
repository.name.fl_str_mv Arquivos Brasileiros de Cardiologia (Online) - Sociedade Brasileira de Cardiologia (SBC)
repository.mail.fl_str_mv ||arquivos@cardiol.br
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