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Type:	Artigo de Periódico
Title:	Validation of the modified shuttle test to predict peak oxygen uptake in youth asthma patients under regular treatment
Authors:	Fernanda de Córdoba Lanza Mariana Mazzuca Reimberg Raphael Mendes Ritti Dias Rebeca Souza Scalco Gustavo Falbo Wandalsen Dirceu Solé Marco Van Brussel Erik Hulzebos Simone Dal Corso Tim Takken
Abstract:	Background: Oxygen uptake (VO2) evaluations by cardiopulmonary exercise test is expensive and time-consuming. Estimating VO2 based on a field test would be an alternative. Objective: To develop and validate an equation to predict VO2peak based on the modified shuttle test (MST). Methods: Cross sectional study, with 97 children and adolescents with asthma. Participants were divided in two groups: the equation group (EG), to construct the equation model of VO2peak, and the cross-validation group (VG). Each subject performed the MST twice using a portable gas analyzer. The peak VO2peak during MST was used in the equation model. The patients’ height, weight, gender, and distance walked (DW) during MST were tested as independent variables. Results: The final model [-0.457 + (gender × 0.139) + (weight × 0.025) + (DW × 0.002)] explained 87% of VO2peak variation. The VO2peak predicted was similar to VO2peak measured by gas analyzer (1.9 ± 0.5 L/min and 2.0 ± 0.5 L/min, respectively) (p = 0.67), and presented significant ICC 0.91 (IC95% 0.77 to 0.96); p < 0.001. The Bland–Altman analysis showed low bias (-0.15 L/min) and limits of agreement (-0.65 to 0.35 L/min). There was no difference in DW between EG (760 ± 209 m) and VG (731 ± 180 m), p = 0.51. Conclusion: The developed equation adequately predicts VO2peak in pediatric patients with asthma.
Subject:	Capacidade motora Asma Consumo de oxigênio Predição
language:	eng
metadata.dc.publisher.country:	Brasil
Publisher:	Universidade Federal de Minas Gerais
Publisher Initials:	UFMG
metadata.dc.publisher.department:	EEF - DEPARTAMENTO DE FISIOTERAPIA
Rights:	Acesso Aberto
metadata.dc.identifier.doi:	https://doi.org/10.3389/fphys.2018.00919
URI:	http://hdl.handle.net/1843/48325
Issue Date:	Jul-2018
metadata.dc.url.externa:	https://www.frontiersin.org/articles/10.3389/fphys.2018.00919/full
metadata.dc.relation.ispartof:	Frontiers in Physiology
Appears in Collections:	Artigo de Periódico

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