Author(s): Farah, Breno Quintella ; Andrade-Lima, Aluísio ; Germano-Soares, Antônio Henrique ; Christofaro, Diego Giulliano Destro [UNESP] ; de Barros, Mauro Virgílio Gomes ; do Prado, Wagner Luiz ; Ritti-Dias, Raphael M.
Date: 2018
Persistent ID: http://hdl.handle.net/11449/170398
Origin: Oasisbr
Subject(s): Adolescents; Autonomic nervous system; Obesity; Physical activity
Made available in DSpace on 2018-12-11T16:50:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-03-01
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Physical activity is a protective factor for autonomic dysfunction. However, whether this occurs in adolescents with abdominal obesity is still unclear. Thus, the aim of this study was to analyze the association between physical activity and heart rate variability (HRV) in adolescents with and without abdominal obesity. This cross-sectional study included 1152 boys (age: 17 ± 1 years). HRV measures of time (root mean square of the squared differences between adjacent normal RR intervals—RMSSD and the percentage of adjacent intervals over 50 ms—PNN50) and frequency domains (balance sympathetic–vagal—LF/HF) were evaluated, as well as total physical activity, commuting physical activity, leisure-time physical activity, and abdominal obesity. All physical activity domains were associated with better RMSSD, PNN50, and LF/HF in normal weight adolescents (p < 0.05), whereas in adolescents with abdominal obesity only leisure-time physical activity was associated with better PNN50 (b = 0.174, p = 0.035) independent of age, period of the day, body mass index, and blood pressure. In conclusion, higher leisure-time physical activity, but not total and commuting physical activity levels, was associated with improved HRV in adolescents with abdominal obesity.
Group Research in Health and Sport ASCES College
Exercise Hemodynamic Laboratory School of Physical Education and Sport University of São Paulo, Av. Professor Melo Moraes, 65
Associate Graduate Program in Physical Education University of Pernambuco
Laboratory of Investigation in Exercise – LIVE Department of Physical Education University of Paulista State (UNESP)
Adolescent Health University of Pernambuco
Department of Human Movement Sciences Federal University of São Paulo
Universidade Nove de Julho
Laboratory of Investigation in Exercise – LIVE Department of Physical Education University of Paulista State (UNESP)
CNPq: #481067/2010-8
