Menard Vincent, Barrero Anna, Lachard Thibault, Robinault Lucien, Li Lingxia, Schnell Frederic, Carré François, Le Douairon Lahaye Solène
M2S Laboratory, University of Rennes 2, Rennes, France.
Department of Sports Medicine, University Hospital of Rennes, Rennes, France.
Front Sports Act Living. 2024 Jul 29;6:1356577. doi: 10.3389/fspor.2024.1356577. eCollection 2024.
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.
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.
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.
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.
在超耐力赛事中进行的长时间重复运动可诱发全身性和心脏性疲劳，即运动性心脏疲劳。我们的目的是找出心脏功能与心脏自主神经功能之间可能存在的相关性。
在一项多阶段超耐力赛事中，一名训练有素的女性自行车运动员每天接受静息超声心动图检查和心率变异性测量，以评估心脏功能和心脏自主神经功能。
该运动员以其最大心率的65%和最大有氧功率的39%完成了3345公里的赛程。在赛事期间，观察到左心室和右心室的收缩功能都有渐进性改善。
观察到心脏自主神经功能出现改变，交感神经和副交感神经之间存在失衡，但心脏功能与心脏自主神经功能之间没有显著相关性的迹象，也没有心脏疲劳的迹象。应在更大样本上进行进一步分析以证实所得结果。
