Relação entre a frequência cardíaca de recuperação após teste ergométrico e índice de massa corpórea

Abstract

Impaired HR recovery was associated with higher BMI, demonstrating that obese individuals present vagus nerve dysfunction.

Heart rate variability and recovery following maximal exercise in endurance athletes and physically active individuals

“…A reduced BMI was not expected, but is congruent with the increased exercise levels in EA compared to PA. While research suggests that BMI is correlated with HRR1 (Barbosa Lins et al 2015), we did not observe a relationship between BMI and HRR1 (r=0.2, p=0.2); however, this may be explained by the presence of a normal BMI range within our study population as opposed to a range of BMI from normal to obese (Barbosa Lins et al 2015). PA D r a f t…”

Heart Rate Variability, Heart Rate Recovery, and Heart Rate Turbulence Represent Different Components of the Cardiac Autonomic Nervous System

“…Cardiac autonomic dysfunction is an independent cardiovascular risk factor and can be evaluated by noninvasive methods such as heart rate variability, heart rate turbulence, or heart rate recovery [ 2 , 3 , 4 ]. One of the best noninvasive approaches to assess cardiac autonomic function is to analyze heart rate variability defined as the oscillation of the interval between successive R waves on the ECG between beats.…”

“…Heart rate recovery is defined as the difference between maximum heart rate and heart rate during the first minute of the recovery period after treadmill stress testing. A difference ≤12 beats is considered an abnormal response of the cardiac autonomic function [ 4 ]. Heart rate turbulence is the measurement of turbulence onset and turbulence slope according to an algorithm, and describes the return of the heart rate to equilibrium after a premature ventricular contraction [ 1 ].…”

“…Heart rate turbulence is the measurement of turbulence onset and turbulence slope according to an algorithm, and describes the return of the heart rate to equilibrium after a premature ventricular contraction [ 1 ]. Impairments on heart rate variability, heart rate turbulence, or heart rate recovery are associated with a greater risk of mortality [ 1 , 2 , 3 , 4 , 5 ]. However, these parameters of heart rate variability, heart rate recovery, and heart rate turbulence stand for different components of cardiac autonomic function.…”

“…Heart rate turbulence is used for evaluation of the spontaneous response of baroreflex receptor activity against stress. Heart rate turbulence shows the recovery of parasympathetic tonus after maximal treadmill stress testing [ 2 , 3 , 4 , 5 ]. Piotrowicz et al [ 5 ] reported that 8-week physical training in patients with heart failure changed the heart rate variability indices without significantly altering the indices of heart rate recovery or heart rate turbulence, indicating that various mechanisms affected the parameters of heart rate variability, heart rate recovery, and heart rate turbulence.…”