Maximum Oxygen Consumption Measurement: Valuable Biological Marker in Health and in Sickness

Araújo, Cláudio Gil Soares de; Herdy, Artur Haddad; Stein, Ricardo

doi:10.5935/abc.20130085

Cited by 17 publications

(19 citation statements)

References 10 publications

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“…Therefore, in agreement with our previous reports 4,12,25, the application of a single equation to estimate VO 2 max may lead to modest errors in some subjects and to significant errors in others. In our study, the application of a sex-specific equation identified a distinct magnitude of error when subjects with higher and lower WHtR were compared.…”

Section: Discussionsupporting

confidence: 90%

“…Although cardiorespiratory fitness is most accurately measured during CPET 2, in most cases worldwide, VO 2 max is estimated rather than directly measured 4,13, often resulting in significant errors for any given subject. Our study addresses this issue by attempting to identify the impact, if any, of central obesity in the EE of VO 2 max.…”

Section: Discussionmentioning

confidence: 99%

“…However, due to the limited availability of metabolic testing resources, VO 2 max is more commonly estimated, rather than directly measured, by applying equations that take into consideration the maximal workload achieved or the exercise duration 2,3. Although measured and estimated VO 2 max are strongly associated, the error of estimate (EE) for a given subject tends to be substantial, averaging 10-20%, which far exceeds the normal error of other clinical and laboratory measurements 4.…”

Section: Introductionmentioning

confidence: 99%

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Influence of central obesity in estimating maximal oxygen uptake

Silva

Franklin

Araújo

2016

Clinics

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OBJECTIVE:To assess the influence of central obesity on the magnitude of the error of estimate of maximal oxygen uptake in maximal cycling exercise testing.METHOD:A total of 1,715 adults (68% men) between 18-91 years of age underwent cardiopulmonary exercise testing using a progressive protocol to volitional fatigue. Subjects were stratified by central obesity into three quartile ranges: Q1, Q2-3 and Q4. Maximal oxygen uptake [mL.(kg.min)-1] was estimated by the attained maximal workload and body weight using gender- and population-specific equations. The error of estimate [mL.(kg.min)-1] and percent error between measured and estimated maximal oxygen uptake values were compared among obesity quartile ranges.RESULTS:The error of estimate and percent error differed (mean ± SD) for men (Q1=1.3±3.7 and 2.0±10.4; Q2-3=0.5±3.1 and -0.5±13.0; and Q4=-0.3±2.8 and -4.5±15.8 (p<0.05)) and for women (Q1=1.6±3.3 and 3.6±10.2; Q2-3=0.4±2.7 and -0.4±11.8; and Q4=-0.9±2.3 and -10.0±22.7 (p<0.05)).CONCLUSION:Central obesity directly influences the magnitude of the error of estimate of maximal oxygen uptake and should be considered when direct expired gas analysis is unavailable.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of central obesity in estimating maximal oxygen uptake

Silva

Franklin

Araújo

2016

Clinics

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“…17,18 Considered class IIa indication - optimized prescription of exercise to healthy individuals, individuals with heart or lung diseases entering a program of regular exercise - and class IIb indication - athletes -, 1 it is still rarely used with such purposes by clinical cardiologists.…”

Section: Major Variables and Their Meaningsmentioning

confidence: 99%

Cardiopulmonary Exercise Test: Fundamentals, Applicability and Interpretation

Herdy¹,

Ritt²,

Stein³

et al. 2016

Arquivos Brasileiros De Cardiologia

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122

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Cardiopulmonary exercise test (CPET) has been gaining importance as a method of functional assessment in Brazil and worldwide. In its most frequent applications, CPET consists in applying a gradually increasing intensity exercise until exhaustion or until the appearance of limiting symptoms and/or signs. The following parameters are measured: ventilation; oxygen consumption (VO2); carbon dioxide production (VCO2); and the other variables of conventional exercise testing. In addition, in specific situations, pulse oximetry and flow-volume loops during and after exertion are measured. The CPET provides joint data analysis that allows complete assessment of the cardiovascular, respiratory, muscular and metabolic systems during exertion, being considered gold standard for cardiorespiratory functional assessment.1-6The CPET allows defining mechanisms related to low functional capacity that can cause symptoms, such as dyspnea, and correlate them with changes in the cardiovascular, pulmonary and skeletal muscle systems. Furthermore, it can be used to provide the prognostic assessment of patients with heart or lung diseases, and in the preoperative period, in addition to aiding in a more careful exercise prescription to healthy subjects, athletes and patients with heart or lung diseases.Similarly to CPET clinical use, its research also increases, with the publication of several scientific contributions from Brazilian researchers in high-impact journals.Therefore, this study aimed at providing a comprehensive review on the applicability of CPET to different clinical situations, in addition to serving as a practical guide for the interpretation of that test.

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“…Para sobreviver, o ser humano depende do oxigênio, e quando realiza um trabalho físico tem necessidade de aumentar a entrada de ar para os pulmões, incrementar a circulação sanguínea e ativar vias metabólicas específicas nos músculos esqueléticos, resultando em uma maior captação e utilização do oxigênio. Exercícios que envolvem grandes grupos musculares produzem respostas nos sistemas respiratório, cardiovascular e muscular, e essas respostas aumentam até um limite definido como consumo máximo de oxigênio (VO 2máx ) ou condição aeróbica do indivíduo (14) . A aptidão cardiorrespiratória pode ser avaliada tanto pelo limiar anaeróbico ventilatório (LAV) quanto pelo VO 2máx , apresentado de forma absoluta ou relativa (15) .…”

Section: Introductionunclassified

Associação entre a obesidade infantil e a capacidade cardiorrespiratória: revisão sistemática

Borfe

Rech

Benelli

et al. 2017

RBPS

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Este artigo publicado em acesso aberto (Open Access) sob a licença Creative Commons, que permite uso, distribuição e reprodução em qualquer meio, sem restrições, desde que o trabalho seja corretamente citado. ASSOCIAÇÃO ENTRE A OBESIDADE INFANTIL E A CAPACIDADE Hildegard Hedwig Pohl Universidade de Santa Cruz do Sul -UNISC -Santa Cruz do Sul (RS) -Brasil Miria Suzana Burgos Universidade de Santa Cruz do Sul -UNISC -Santa Cruz do Sul (RS) -Brasil RESUMOObjetivo: Verificar as evidências científicas a respeito da associação entre obesidade infantil e aptidão cardiorrespiratória. Métodos: Realizouse uma revisão de literatura advinda da busca de artigos, publicados nos últimos cinco anos, nas bases de dados SciELO e Portal de Periódicos da CAPES. Os descritores utilizados foram aptidão física, sobrepeso/obesidade e crianças/adolescentes/escolares. Incluíram-se no estudo artigos completos publicados em periódicos, nos idiomas inglês, português e espanhol, com ano de publicação no período de 2010 a 2015, e que tinham como objetivo a predição da aptidão cardiorrespiratória com testes de exercício na obesidade infantil. Resultados: Ao todo foram 97 artigos pesquisados, mas, após análise e submissão aos critérios de inclusão e exclusão, restaram cinco artigos, sendo dois em língua portuguesa, dois em espanhol e um em inglês. Dos cinco artigos analisados, quatro estudos relataram que a capacidade cardiorrespiratória foi afetada pelos índices de adiposidade corporal. Conclusão: Foi evidenciada associação inversa entre o índice de massa corporal e o condicionamento cardiorrespiratório, em que os escolares com excesso de peso apresentaram menores índices de aptidão cardiorrespiratória.Descritores: Obesidade; Aptidão física; Crianças; Adolescentes. ABSTRACT Objective: To investigate the scientific evidence regarding the association between childhood obesity and cardiorespiratory fitness. Methods: A review was conducted on the literature arising from the search of articles published in the last five years in the databases SciELO and CAPES Journal Portal (Portal de Periódicos da CAPES

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Maximum Oxygen Consumption Measurement: Valuable Biological Marker in Health and in Sickness

Cited by 17 publications

References 10 publications

Influence of central obesity in estimating maximal oxygen uptake

Influence of central obesity in estimating maximal oxygen uptake

Cardiopulmonary Exercise Test: Fundamentals, Applicability and Interpretation

Associação entre a obesidade infantil e a capacidade cardiorrespiratória: revisão sistemática

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