Corrigendum: Impact of victory and defeat on the perceived stress and autonomic regulation of professional eSports athletes.

[This corrects the article DOI: 10.3389/fpsyg.2022.987149.].

Impact of victory and defeat on the perceived stress and autonomic regulation of professional eSports athletes.

Competitive sports involve physiological, technical and psychological skills, which influence directly on individuals' performance. This study aims to investigate the levels of perceived stress and Heart Rate Variability (HRV) before and after matches with victory and defeat in professional eSports athletes. Our hypothesis was that the winners would have better autonomic and stress responses after match, thus corroborating the literature on neurocardiac connections. Fifty male eSport players were selected players from 10 different Brazilian teams. The experiment was carried out in 2 sessions. Firstly, after signing the informed consent form, 24 h before the game, anthropometric, physical activity levels and time of expertise data were recorded only for sample characterization and the players were familiarized with the perceived stress scale-10 (PSS-10) and the HRV measurements. Secondly, players performed the PSS-10 and HRV recording at rest by 10 min 60 and 30 min before the game (i.e., baseline time) and 10 min after the end of the game. Overall, concerning PSS-10 our findings show that VG had significant reduced scores in post-game time compared to baseline (BL) and pre-game times, while DG had significant increased scores in post-game time compared to BL and pre-game times. Regarding HRV, our results demonstrate that VG had significant increase in RR, SDNN, rMSSD, pNN50 and HF, and significant decrease in LF and LF/HF, while DG had a significant decrease in RR, SDNN, rMSSD and HF, and significant increase in LF and LF/HF. It was observed that VG had better HRV responses (greater parasympathetic activation) as well as lower levels of perceived stress, while DG had worst HRV responses (greater sympathetic activation) and higher levels of perceived stress.

Chronic Effects of Different Types of Neuromuscular Training on Hemodynamic Responses Estimated VO2max, and Walking Performance in Older People.

This paper investigated the effects over time of different forms of neuromuscular training on hemodynamic responses, the estimated VO2max, and walking performance. 105 older adults were randomly organized into three groups: RGA, RGB, and the Control Group (CG). RGA and RGB did 4 weeks of adaptation phase training and 12 weeks of intervention with different loads: moderate loads for RGB. and higher loads for RGA. A pre- and post-evaluation of the resting heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), double product (DP), estimated VO2max, and walking performance were assessed. Significant differences were observed for SBP, DBP, HR, and DP. For SBP, a post-evaluation reduction was observed only in RGA (p = 0.007) and when comparing RGA with the Control Group (p < 0.000). For the absolute VO2max, a significant improvement was seen in RGB compared to RGA (p = 0.037) and CG (p < 0.000). For the relative VO2max, RGB scored significantly higher than RGA (p < 0.000) and CG (p < 0.000), post-intervention. For the walk test, a significant reduction in completion times was observed for RGA (p = 0.027) and RGB (p < 0.000), and for RGB compared to RGA (p = 0.000) and CG (p < 0.000). Resistance training can be an excellent strategy for hemodynamic and cardiorespiratory improvement in the elderly.