Division of Cardiology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea.
JCF Technology, Seoul, Korea.
J Korean Med Sci. 2019 Feb 12;34(8):e56. doi: 10.3346/jkms.2019.34.e56. eCollection 2019 Mar 4.
Heart rate (HR) change during sleepy driving has never been investigated. Healthy volunteers who planned to drive a long distance were recruited and monitored with a 24-hour Holter. Six healthy volunteers were enrolled. Their mean driving time was 297.7 ± 111 minutes. Mean duration of sleepy time while driving was 27 ± 24.5 minutes. Driving HR showed a trend for increment as compared to day time mean HR, from 85 ± 5.6 to 89.8 ± 5.6 beats/min (by 7%) ( = 0.093). Mean HR while sleepy driving significantly decreased to 81.5 ± 9.2 beats/min by 9.3% ± 7.4% ( = 0.046). This pilot study for the first time demonstrated that HR decreased while sleepy driving.
驾驶时的心率（HR）变化从未被研究过。本研究招募了计划长途驾驶的健康志愿者，并使用 24 小时动态心电图监测他们。共有 6 名健康志愿者参与研究。他们的平均驾驶时间为 297.7 ± 111 分钟。驾驶时困倦的平均持续时间为 27 ± 24.5 分钟。与白天平均 HR 相比，驾驶时的 HR 呈递增趋势，从 85 ± 5.6 次/分增加到 89.8 ± 5.6 次/分（增加 7%）（= 0.093）。困倦驾驶时的平均 HR 显著下降至 81.5 ± 9.2 次/分，降低 9.3% ± 7.4%（= 0.046）。这项初步研究首次表明，驾驶时的 HR 会降低。
