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. 2024 Jul 29:6:1356577.
doi: 10.3389/fspor.2024.1356577. eCollection 2024.

Cardiac function and autonomic cardiac function during a multi-stage cycling event: a brief report

Vincent Menard  1 , Anna Barrero  1 , Thibault Lachard  2 , Lucien Robinault  3   4 , Lingxia Li  1 , Frederic Schnell  2   5   6 , François Carré  2   6 , Solène Le Douairon Lahaye  1
Affiliations

Cardiac function and autonomic cardiac function during a multi-stage cycling event: a brief report

Vincent Menard et al. Front Sports Act Living. .

Erratum in

Abstract

Introduction: Prolonged and repeated exercise performed during an ultra-endurance event can induce general and cardiac fatigue known as exercise-induced cardiac fatigue. Our objective was to find a possible correlation between the cardiac function and the autonomic cardiac function.

Methods: During a multistage ultra-endurance event, a female well-trained cyclist underwent daily rest echocardiography and heart rate variability measurements to assess the cardiac function and the cardiac autonomic function.

Results: The athlete completed 3,345 km at 65% of her maximum heart rate and 39% of her maximum aerobic power. A progressive improvement of the systolic function for both the left ventricle and the right ventricle was observed during the event.

Discussion: Alterations were observed on the cardiac autonomic function with an imbalance between sympathetic and parasympathetic, but there was no sign of a significant correlation between the cardiac function and the autonomic cardiac function and no signs of cardiac fatigue either. Further analysis should be performed on a larger sample to confirm the obtained results.

Keywords: athlete; echocardiography; endurance; exercise-induced fatigue; heart rate variability.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The authors declare that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision.

Figures

Figure 1
Figure 1
Echocardiographic parameters in a graphic presentation with the minimal and maximal ranges for the baseline and the clinical threshold for the left ventricle ejection fraction (LVEF), left ventricle global longitudinal strain (LV GLS), mean S′ wave, E/A ratio, E/E′ mean ratio, tricuspid annular plane systolic excursion (TAPSE), fractional area change (FAC), and right ventricle global longitudinal strain (RV GLS) min /max for the rest days - - - -; clinical acceptable value ———.
Figure 2
Figure 2
HRV parameters in the supine and standing positions in a graphic presentation with heart rate (HR), low frequencies (LF), and high frequencies (HF) in normalized units (nu).
See this image and copyright information in PMC

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