基于近红外光谱法的汽车驾驶员脑氧参数振动响应分析李增勇*张亮亮王岩李建平刘菲菲陈国强(山东大学机械工程学院250061)摘要:振动是影响驾驶员职业健康的重要因素之一。该文应用近红外光谱法监测驾驶员脑氧信息,评估了三种不同振动频率(3、4.5、6Hz)对10名健康驾驶员脑组织氧合状况的影响。结果发现,振动导致脑组织中氧合血红蛋白(HbO2)的含量上升、还原血红蛋白(Hb)含量下降,说明振动过程中脑组织对氧的需求量增加,不同振动频率对脑氧参数的影响不同。本文研究结果初步揭示了驾驶员振动条件下的脑氧动力学变化特性。关键词:生物医学工程学;脑氧;近红外光谱;振动Effectofdifferentvibrationfrequenciesoncerebraloxygenationasassessedbynear-infraredspectroscopyinhealthydriversLIZengyongZhangLiangliangWangYanLiJianpingLiuFeifeiChenGuoqiang(SchoolofMechanicalEngineering,ShandongUniversity,Jinan,250061P.R.China)AbstractTheobjectiveofthisstudyistoinvestigatetheeffectsof3,4.5and6Hzwhole-bodyvibration(WBV)onchangesincerebraloxygenationoscillationofthepre-frontalcortexregioninhealthydrivers.TenhealthymenwereexposedtothreeWBV(3,4.5and6Hzat0.5grmsintheverticaldirection),inarandomizedorderonseparatedays.Allsubjectswererequiredtorestwellpriortotheexperiment.Eachdaytestprotocolwasasfollows:20minrest,20minofWBVsessionand20minrecovery.Cerebraloxygenationsignalwasmonitoredfromtheleftfrontallobeusingnearinfraredspectroscopy(NIRS)throughouttheentireexperimentperiod.Itwasfoundthtatcerebraloxygenationresponsesincreasedwithvibrationat4.5Hzcomparedtothatwithoutvibration.Theresultsdemostratedthatthevibrationfrequencyhadsignificanteffectoncerebraloxygenation.Keywords:Bioengineering,cerebraloxygenation,nearinfraredspectroscopy,vibration1引言随着汽车工业的发展,我国机动车拥有量不断增加,职业驾驶员队伍也在不断扩大。驾驶员作为一种特殊职业人群,长期受到振动、噪声、精神紧张、作业时间长等因素的影响,工作环境对驾驶员健康的影响已日益引起关注。Robinson等(2005)调查发现,作为人類第一杀手的心脑血管疾病在职业驾驶员中发病率明显高于普通人[1]。宋琦如(1996)、茅佩娟(2008)等对国内职业驾驶员流行病学调查亦发现,驾驶员心血管功能及脑血血管功能的...