Cunningham Taylor C, Maghrabi Khadijah, Sanatani Shubhayan
Department of Pediatrics,Division of Cardiology,Children's Heart Centre,British Columbia's Children's Hospital,Vancouver,British Columbia,Canada.
Cardiol Young. 2017 Jan;27(S1):S94-S100. doi: 10.1017/S1047951116002304.
The cardiovascular benefits of habitual exercise are well documented. In the current era, more of the population is exceeding the recommendations for physical activity as the popularity of endurance events increases. Recent data have proposed a U-shaped relationship between exercise intensity and cardiovascular outcomes. Regular participation in endurance activities has been shown to result in structural and functional changes in the heart. This re-modelling may be the substrate for cardiac dysfunction or arrhythmias. The risk of sudden cardiac death may also be elevated; however, in most cases of sudden cardiac death, the cause can be linked to an underlying cardiac pathology where exercise acted as the trigger for a lethal arrhythmia. This article serves to review whether excessive exercise may result in harm in some athletes.
长期锻炼对心血管系统的益处已有充分记录。在当今时代，随着耐力赛事越来越受欢迎，更多人超过了身体活动的建议量。最近的数据表明，运动强度与心血管结局之间呈U形关系。有研究显示，经常参与耐力活动会导致心脏结构和功能发生变化。这种重塑可能是心脏功能障碍或心律失常的基础。心脏性猝死的风险也可能会升高；然而，在大多数心脏性猝死案例中，病因可归因于潜在的心脏病变，运动只是引发致命心律失常的诱因。本文旨在探讨过度运动是否会对某些运动员造成伤害。
