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Influence of the ACTN3 Genotype and the Exercise Intensity on the Respiratory Exchange Ratio and Excess Oxygen Consumption After Exercise.
de L Corrêa, Hugo; Ribeiro, Heitor S; Maya, Áthila T D; Neves, Rodrigo P; de Moraes, Milton R; Lima, Ricardo M; Nóbrega, Otávio T; Ferreira, Aparecido P.
Afiliação
  • de L Corrêa H; Graduation Program in Physical Education and Health, Catholic University of Brazil-UCB-DF, Brasília, DF, Brazil.
  • Ribeiro HS; Graduation Program in Physical Education and Health, Catholic University of Brazil-UCB-DF, Brasília, DF, Brazil.
  • Maya ÁTD; Graduation Program in Physical Education and Health, Catholic University of Brazil-UCB-DF, Brasília, DF, Brazil.
  • Neves RP; Interdisciplinary Research Center, ICESP, Brasília, DF, Brazil.
  • de Moraes MR; Graduation Program in Physical Education and Health, Catholic University of Brazil-UCB-DF, Brasília, DF, Brazil.
  • Lima RM; Graduation Program in Physical Education and Health, Catholic University of Brazil-UCB-DF, Brasília, DF, Brazil.
  • Nóbrega OT; Graduation Program in Physical Education, Brazil University (UnB), Brasília, DF, Brazil ; and.
  • Ferreira AP; Graduation Program in Health Sciences, Brazil University (UnB), Brasília, DF, Brazil.
J Strength Cond Res ; 35(5): 1380-1388, 2021 May 01.
Article em En | MEDLINE | ID: mdl-30335718
ABSTRACT
ABSTRACT de L. Corrêa, H, Ribeiro, HS, Maya, ÁTD, Neves, RP, de Moraes, MR, Lima, RM, Nóbrega, OT, and Ferreira, AP. Influence of the ACTN3 genotype and the exercise intensity on the respiratory exchange ratio and excess oxygen consumption after exercise. J Strength Cond Res 35(5) 1380-1388, 2021-This study aimed to assess the respiratory exchange ratio (RER) and excess postexercise oxygen consumption (EPOC) after high-intensity interval training and continuous moderate-intensity aerobic training in accordance with the ACTN3 genotype. A cross-sectional study with 30 physically active individuals who participated in 3 experimental sessions, as follows a high-intensity interval aerobic exercise, for 3 minutes at 115% anaerobic threshold, with 90 seconds of passive recovery; a continuous moderate-intensity aerobic exercise at 85% anaerobic threshold; and a control session. Respiratory exchange ratio and V̇o2 were obtained through an indirect, calorimetry-based gas analysis method, using a breath-by-breath approach, assessed at baseline, during the trials, and at 1, 2, 3, and 4 hours after exercise. We found that lower postexercise RER values were observed only in subjects with the X allele, in both the high- and the moderate-intensity training protocols. Homozygous RR subjects showed no differences in postexercise RER compared with the scores at the control day. After both sessions of exercise, EPOC levels were higher compared with scores at the control day for 2 hours among X allele carriers, and only in the first hour among RR homozygous. Thus, the RER and EPOC presented different responses after moderate and intense exercise according to the ACTN3 genotype. Moreover, individuals with the X allele of the ACTN3 gene show a higher oxidation of fats in the postexercise period.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Consumo de Oxigênio / Exercício Físico Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Humans Idioma: En Revista: J Strength Cond Res Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Consumo de Oxigênio / Exercício Físico Tipo de estudo: Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Humans Idioma: En Revista: J Strength Cond Res Ano de publicação: 2021 Tipo de documento: Article