Short-Term Resistance Training Attenuates Cardiac Autonomic Dysfunction in Obese Adolescents

Pediatric Exercise Science
Paulo FarinattiLuiz Guilherme Kraemer-Aguiar

Abstract

Cardiac autonomic dysfunction (CADysf) in children is often associated to obesity and may be attenuated by physical activity. In this study, we investigated the effects of resistance training (RT) upon CADysf assessed by heart rate variability (HRV) in obese adolescents. Volunteers were assigned into groups according to standard deviation scores for body mass index (z-BMI) and percentile for age and sex: obese (OB; z-BMI from 2 to 3 and ≥ 95th percentile, n = 24) and normal weight controls (CG; z-BMI from -2-1 and < 85th percentile, n = 20). OB performed isolated RT during 12 weeks [3 sets of 6-10reps with 70-85% 10RM]. Waist circumference, systolic/diastolic blood pressures (SBP/DBP), lipids, and HRV were assessed at baseline. Only OB underwent postintervention assessments. At baseline, SBP (122.4 ± 9.1 vs. 109.7 ± 11.5 mmHg, p < .001) and DBP (76.1 ± 7.1 vs. 65.3 ± 5.9 mmHg, p < .001) were higher, while parasympathetic HRV indexes were lower (p < .05) in OB compared with CG. After RT, waist circumference (3%, p < .001) and SBP (10%, p < .001) reduced in OB. Parasympathetic indexes of HRV increased in OB (SDNN: 25%, p = .03; rMSSD: 48%, p = .0006; pNN50: 67%, p = .001; total power: 54%, p = .01; HF: 101%, p = .001) and baselin...Continue Reading

Citations

Feb 6, 2017·Epilepsy & Behavior : E&B·Alan W C Yuen, Josemir W Sander
Oct 19, 2019·Physiological Measurement·Cristiano Q OliveiraPaulo Farinatti
Aug 25, 2018·Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society·Pooja BhatiM Ejaz Hussain
Jan 10, 2020·Obesity Surgery·Tassia Gomide BragaLuiz Guilherme Kraemer-Aguiar
Nov 1, 2020·International Journal of Environmental Research and Public Health·Carles Miguel GuillemIván Chulvi-Medrano
Feb 28, 2018·American Journal of Lifestyle Medicine·Kirsten Legerlotz
Apr 17, 2021·Frontiers in Physiology·Agustín Jesús Estévez-GonzálezMargarita Pérez-Ruiz
Sep 29, 2021·BMC Cardiovascular Disorders·A GaruShozo Yano

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