Correlation between heart rate variability indexes and aerobic physiological variables in patients with COPD

Abstract

This study demonstrated that HRV indexes at rest may become a predictive tool for aerobic capacity in COPD patients after the development of more consistent methods.

Are heart rate dynamics in the transition from rest to submaximal exercise related to maximal cardiorespiratory responses in COPD?

“…Leite et al 15 demonstrated resting HRV assessment can become a tool to predict exercise capacity in COPD patients. The authors showed that autonomic cardiac function assessment at rest (sitting position) had a weak, although statistically significant, correlation with variables obtained during CPET performed on a treadmill.…”

“…The authors speculated exercise intolerance in COPD patients occurs mainly as a result of muscular factors (such as fatigue) and ventilatory factors (such as dynamic hyperinflation) and not cardiovascular factors. 14 A recent study 15 showed weak correlations between HRV indexes at rest and aerobic capacity in COPD, suggesting that better HRV indexes at rest may be related to better maximal performance. However, the HRV data collection was assessed in the seated position and it is known posture interferes with HRV responses.…”

Effects of 12 weeks of aerobic training on autonomic modulation, mucociliary clearance, and aerobic parameters in patients with COPD

“…A high level of aerobic fitness has been associated with HRV, probably due to increased vagal activity in controlling the heart rate. 9 , 11 …”

“…Aerobic training has been related to significant improvements in autonomic modulation, suggesting better adaptation and efficiency of the cardiovascular system. 9 , 10 In addition, relations between autonomic control and aerobic variables were also observed acutely in COPD patients, 11 highlighting that good aerobic conditioning is related to an increase in the vagal activity of heart rate control. However, the possible effects of different aerobic models on autonomic control remain unclear.…”

Smart Device for the Determination of Heart Rate Variability in Real Time

“…This analysis can be used as a simple and noninvasive method for the estimation of aerobic capacity in subjects with COPD [11], and it can also be used as a prognostic tool, since in these patients, a reduced HRV has been related to an increase in morbidity and mortality [12]. In addition, respiratory muscle strength has been related to the sympathetic-vagal response, which can be evaluated by HRV [13].…”