Institute of Clinical Medicine, Department of Internal Medicine, University of Oulu, Finland.
Auton Neurosci. 2011 Feb 24;160(1-2):107-14. doi: 10.1016/j.autneu.2010.11.011. Epub 2010 Dec 23.
The incidence of adverse cardiovascular events is higher among spectators of exciting sports events, but the mechanistic link between the events is not known. We assessed the heart rate (HR) and blood pressure (BP) dynamics of enthusiastic male ice hockey spectators (60 ± 9 years) with coronary artery disease (CAD) during Finnish national league ice hockey play-off final matches. Twenty-four-hour ambulatory ECG (n = 55) and BP (n = 17) were recorded at the time of the match and on a control day. Beat-to-beat R-R intervals and BP were recorded during the match and a bicycle exercise at equal HR levels (n = 21). Systolic and diastolic BP were significantly higher 1h before, during, and 1h after the match than on the control day, e.g., the highest systolic BP was 180 ± 14 vs. 145 ± 15 and diastolic 103 ± 13 vs. 82 ± 11 mmHg (p<0.001 for both). HR was higher throughout the match (p<0.05) and remained elevated 2h after the match (p<0001), and measures of HR variability were decreased during the match (p<0.01). Low-frequency variability in BP was higher during the match than during the exercise test (p<0.01). The results show that cardiac vagal outflow is attenuated and vasomotor sympathetic activity elevated during exciting sports events and BP dynamics differ from those occurring during physical exercise at equal HRs. The autonomic reactions may partly explain the vulnerability to cardiovascular events caused by this type of leisure-time emotional excitement.
观看刺激体育赛事的观众发生不良心血管事件的几率更高，但两者之间的机制联系尚不清楚。我们评估了患有冠状动脉疾病（CAD）的热情男性冰球观众（60±9 岁）在观看芬兰全国联赛冰球季后赛决赛时的心率（HR）和血压（BP）动态。在比赛期间和对照日记录了 24 小时动态心电图（n=55）和血压（n=17）。在比赛期间和相同 HR 水平的自行车运动时记录了逐搏 R-R 间期和 BP（n=21）。收缩压和舒张压在比赛前 1 小时、比赛期间和比赛后 1 小时均明显高于对照日，例如最高收缩压为 180±14 比 145±15mmHg，舒张压为 103±13 比 82±11mmHg（均 p<0.001）。整个比赛过程中 HR 均较高（p<0.05），比赛后 2 小时仍处于升高状态（p<0.001），且比赛期间 HR 变异性的测量值降低（p<0.01）。BP 的低频变异性在比赛期间高于运动测试期间（p<0.01）。结果表明，在令人兴奋的体育赛事中，心脏迷走神经传出活动减弱，血管舒缩交感活性升高，BP 动力学与在相同 HR 下进行的体育锻炼时不同。自主反应可能部分解释了这种休闲时间情绪兴奋引起的心血管事件易感性。
