Effects of load and type of physical training on resting and postexercise cardiac autonomic control

Abstract

The aim of the study was to investigate the influence of training load and exercise mode on heart rate variability and heart rate recovery (HRR) in healthy individuals. The subjects were divided into three groups: sedentary (SED), resistance trained (RT) and aerobically trained (RT). Resting and postmaximal exercise RR intervals were recorded on supine and seated position, respectively. The HRV indices calculated in the resting position were RMSSD and LF and HF power densities. The following HRR indices were calculated throughout the 5-minute postmaximal recovery period: semi-logarithmic regression analysis of the first 30 s (T30); absolute difference between the peak and 60 s HR (HRR(60s)); and mono-exponential time constant of HRR (HRRτ). The RMSSD on subsequent 30-s segments (RMSSD(30s)) on recovery period was also calculated. Both RT and AT groups presented faster HRR than SED (P<0·05). The aerobic trained group was the only group that presented vagal reactivation, when analysing the RMSSD(30s). There were no correlations between the Baecke sport score and the HRV vagal-related indices. However, it was significantly correlated with HRR. It was concluded that that the training load positively influences the HRR, but has no effect on the HRV at rest and that the type of exercise, showed a marked influence on HRV recovery.

Differences in autonomic heart rate modulation during rest and after a supramaximal anaerobic test in relation to gender and the menstrual cycle in women

“…Our results show, in accordance to previous findings (16), faster vagal reactivation in males, perceived by T30 which is an immediate post-exercise index of vagally mediated cardiac rate decay (50,51). HRR was found to be in a strong correlation with the level of physical activity (52). It was also found to negatively correlate with resting supine parasympathetic markers of HRV when in standing position during the first minute of recovery, but the higher the indices of combined autonomic modulation were (LF, lnLF), greater was the HRR in third and fifth minute post-exercise (53).…”

The short‐term impact of the catheter ablation on noninvasive autonomic nervous system parameters in patients with paroxysmal atrial fibrillation

“…50 Whereas sedentary lifestyle, poor functional capacity, 53,54 or excessive exercise seems to increase the risk of AF, 53 the moderate exercise seems to have a protective effect and decreases the risk of AF 55 and positively influences the HRR. 56 Therefore, the modulation of ANS activity may constitute an important therapeutic strategy for the management of AF 2,57 We found that the AFCA by PVAI impaired the noninvasive ANS parameters, but this effect was not found to be associated with post-PVI AF recurrence. Complete elimination of vagal response (vagal denervation) appeared associated with reduced AF recurrence [7][8][9] and with marked HRV changes consistent with ANS withdrawal.…”

“…In contrast, highly trained athletes often display a rapid and profound drop in HR of ≥30–50 beat during the first minute of HRR from strenuous exertion . Whereas sedentary lifestyle, poor functional capacity, or excessive exercise seems to increase the risk of AF, the moderate exercise seems to have a protective effect and decreases the risk of AF and positively influences the HRR . Therefore, the modulation of ANS activity may constitute an important therapeutic strategy for the management of AF…”

Obesity and Prader-Willi Syndrome Affect Heart Rate Recovery from Dynamic Resistance Exercise in Youth

“…Cardiovascular fitness has been shown to influence HRR, as more fit individuals show a faster HRR than less fit individuals [20,21,42]. Thus, it is possible that poor cardiovascular fitness in young people with PWS also contributed to the compromised HR response following resistance exercise.…”