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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Reference equations of oxygen uptake for the step test in the obese population

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Author(s):
C.F. Fagundes [1] ; L. Di Thommazo-Luporini [2] ; C.L. Goulart [3] ; D. Braatz [4] ; A. Ditomaso [5] ; A. Borghi-Silva [6]
Total Authors: 6
Affiliation:
[1] Universidade Federal de São Carlos. Departamento de Fisioterapia - Brasil
[2] Universidade Federal de São Carlos. Departamento de Fisioterapia - Brasil
[3] Universidade Federal de São Carlos. Departamento de Fisioterapia - Brasil
[4] Universidade Federal de São Carlos. Departamento de Engenharia de Produção - Brasil
[5] Instituto Federal de Educação, Ciência e Tecnologia de São Paulo - Brasil
[6] Universidade Federal de São Carlos. Departamento de Fisioterapia - Brasil
Total Affiliations: 6
Document type: Journal article
Source: Brazilian Journal of Medical and Biological Research; v. 55, 2022-03-21.
Abstract

The aim of this study was to establish reference equations for the six-minute step test (6MST) based on demographic, anthropometric, body composition, and performance variables able to predict oxygen uptake (V̇O2) in obese individuals. Seventy-three obese adults (42±14 years old, body mass index >30 kg/m2) from both sexes were included. They underwent anamnesis, body composition evaluation, and the 6MST with expired gases registered simultaneously. Three equations were developed for the obese population (n=73; 59% female). The first equation was composed of the up-and-down step cycles (UDS), sex, and age as predictors; the second equation was composed of the UDS, age, and lean mass (LM). Both equations collectively explained 68.1% of the V̇O2 variance in the 6MST, while the third equation, composed of the UDS, age, and body mass, accounted for 67.7% of the V̇O2 variance. UDS, sex, age, LM, and body mass were important V̇O2 predictors of 6MST in these obese individuals. This study contributes to the dissemination of a simple, inexpensive, and fast evaluation method that can provide important indicators of cardiorespiratory fitness and guide strategies for rehabilitation. (AU)

FAPESP's process: 18/03233-0 - Study of cardiorespiratory interaction and the supply of peripheral and cerebral oxygen as modulators of exercise capacity during bilevel application in the coexistence of COPD-CHF
Grantee:Cássia da Luz Goulart
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 20/13465-5 - Identification of prognostic variables from the cardiopulmonary exercise test to stratify Heart Failure severity
Grantee:Cássia da Luz Goulart
Support type: Scholarships abroad - Research Internship - Doctorate (Direct)
FAPESP's process: 15/26501-1 - Study of limiting factors to physical exercise and adjunct effects to rehabilitation on cardiorespiratory disease: a multicentre approach
Grantee:Audrey Borghi e Silva
Support type: Research Projects - Thematic Grants