Changes in Physiological Parameters Induced by Simulated Driving Tasks: Morning VS. Afternoon Session

Wen-Chieh Liang; John Yuan; D. C. Sun; Ming-Han Lin

doi:10.29977/JCIIE.200811.0003

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P457 - 471

工程学 > 工程学总论

DOI： 10.29977/JCIIE

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Changes in Physiological Parameters Induced by Simulated Driving Tasks: Morning VS. Afternoon Session

模拟驾驶任务所引发的生理參數变化：早上vs.下午时段

梁文杰(Wen-Chieh Liang) ；阮约翰(John Yuan) ；孙德铨(D. C. Sun) ；林明汉(Ming-Han Lin)

工业工程学刊； 25 卷 6 期 (2008 / 11 / 01) ， P457 - 471

英文 DOI： 10.29977/JCIIE.200811.0003

驾驶疲勞；心率变異；恒定；自律神经系统；模拟驾驶； driving fatigue ； heart rate variability HRV ； homeostasis ； autonomic nervous system ANS ； simulated driving

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摘要 │ 参考文献 (28) │ 被引用文献 (1) │ 国际计量

摘要〈TOP〉

Introduction: Driving fatigue is one of the most common causes for traffic accidents. Immobilization of legs, hip, and waist is thought to play a major role in driving fatigue, as it hinders blood circulation and induce hemodynamic changes. Objective: the objective of the study was to monitor changes in physiological parameters before and after in-door simulated driving tasks conducted in the morning as well as afternoon sessions. Methods: 40 young male subjects were randomly divided into morning (group A) and afternoon (group B) sessions and participated in the 90-min simulated in-door driving task. Before and after the task, blood pressure (BP), heart rate (HR), and heart rate variability (HRV) parameters were measured using a novel wrist monitor ANS Watch(superscript ®) which utilized built-in bio-sensors in the cuff to acquire radial pulse waves directly. Palm temperatures were measured by a high-precision thermometer. A questionnaire ranking driving fatigue was filled by each volunteer before and after the driving task. Results: (1) From paired t-tests, both the morning and afternoon driving tasks caused decreases in HR and palm temperatures, and increases in HRV and VLF(AU) (Very low frequency (absolute unit)); For the morning session, LF(AU) (Low frequency (absolute unit)) and LF(NU) (Low frequency (normalized unit)) increased while HF(NU) (High frequency (normalized unit)) decreased; In contrast, LF(NU) and LF/HF decreased while HF(NU) increased for the afternoon session (all changes p＜0.05). Systolic pressure was maintained in the morning session but dropped in the afternoon session (p＜0.05). (2) From one-way and two-way MANOVA analyses, there was no significant difference between morning and afternoon session for the entire group of physiological parameters measured before or after driving tasks; However, LF(AU), LF(NU), and LF/HF three individual parameters measured before driving were higher in the afternoon session than in the morning session (p＜0.05). (3) From written questionnaire, all subjects felt some degree of fatigue following the driving task. No statistical difference existed between the two driving sessions in terms of fatigue score baseline or score change due to driving. Conclusion: Multiple physiological parameters showed significant changes after simulated driving tasks. Distinct trends were found between the two driving sessions. In the morning session, poor circulation in the lower body (limbs, abdomen, and hip) caused decrease in palm temperatures and HR, but BP were maintained due to activation of the sympathetic nervous system as evidenced by increased HRV, LF(AU), and LF(NU). For the afternoon session, palm temperatures, HR and systolic pressure were all lowered. Parasympathetic nervous system was activated [indicated by increased HF(NU)] prompting the body to enter a sleepy state, which greatly increases accident risks in actual road driving. Monitoring of multiple physiological parameters in the study had gained great insight into mechanisms of homeostasis and provided a foundation in the future work to quantify driving fatigue in terms of degree of deviation from homeostatic states.

并列摘要〈TOP〉

参考文献 ( 28 ) 〈TOP〉

Carrasco, S.,R. Gonzalez,J. Jimenez,R. Roman,V. Medina,J. Azpiroz(1998).Comparison of the heart rate variability parameters obtained from the electrocardiogram and the blood pressure wave.Journal of Medical Engineering & Technology,22,195-205.
Fauchier, L.,D. Babuty,M. L. Autret,P. Poret,P. Cosnay,J. P. Fauchier(1998).Influence of duration and hour of recording on spectral measurement of heart rate variability.Journal of the Autonomic Nervous System,73,1-6.
Freitas, J.,P. Lago,J. Puig,M. J. Carvalho,O. Costa,A. F. de Freitas(1997).Circadian heart rate variability rhythm in shift workers.Journal of Electrocardiology,30,39-44.
Fumio, K.,W. Takemasa,W. Misuzu,A. Yasuhiro,T. Teruyuki,N. Taisuke,F. Hikari,T. Kiyomi,O. Akiyoshi,O. Rumi,H. Junichiro(2002).Blood pressure and heart rate variability in taxi drivers on long duty schedules.Journal of Occupational Health,44,214-220.
Garde, A. H.,B. Laursen,A. H. Jorgensen,B. R. Jensen(2002).Effects of mental and physical demands on heart rate variability during computer work.European Journal of Applied Physiology,87,456-461.

被引用文献 ( 1 ) 〈TOP〉

卢政男、黄裕净、郭纯恩、毕国伟、胡文龙、沈哲民、吴思颖(2017)。雷射针灸与传统针刺对失眠的疗效比较：一随机对照试验。中医药杂志，28(1)，001-010。

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