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1、ValidatingActigraphyasaMeasureofSleepforPreschoolChildren验证Actigraphy是一种对学前儿童的睡眠的测量祝楠楠14723539文献作者来源:JournalofClinicalSleepMedicine,Vol.9,No.7,2013(临床睡眠医学杂志)课题背景(1)测量成人睡眠监测的算法比较成熟,而对于儿童来说,现在的算法不确定是否适合。(2)测试工具都是佩戴式,或者入侵式,而儿童睡觉不安稳,容易活动,造成数据不准确,所以,发展应用于儿童
2、的算法很重要。背景介绍Sleepisconsideredtobeofparamountimportanceforbraindevelopmentduringthefirsttwoyearsoflife.Infact,childrenspendoverhalfoftheirfirsttwoyearsoflifesleeping,withdailysleepdurationdecreasingfrom14.5toabout13hoursbetween6monthsand2yearsofage.Inthe
3、preschoolyears,dailysleepneedsremainhigh,decreasingfrom13hoursat2yearstoabout11hoursat5years.Duringinfancyandchildhood,frequentnightawakeningsordifficultyfallingasleepareamongthemostfrequentdevelopmentalcomplaints课题目的验证三种算法,是否适合学前儿童,比较他们的有效性,且前提是佩戴的仪器是
4、验证过的。此课题旨在通过研究,了解学前儿童睡眠状况,为后续提高学前儿童睡眠质量和促进学前儿童大脑发育寻找办法。PSGThepolysomnography(PSG)isthegoldstandardformeasuringsleep,itrequiresconsiderableequipmentandtechnicalresources.多导睡眠图、多导睡眠监测Actigraphy(体动记录仪)ActiwatchMETHODSSubjects(被试)Twelvechildren(4boys,8girl
5、s)agedfrom2to5years(M=3.1,SD=1.0)participatedinthisstudy.Nonehadsleepproblems,accordingtotheirparents.Procedures:同一天,让12个合格儿童回到家,让技术员和助理研究员在小孩睡觉前一个小时,给佩戴仪器(脚踝和手腕),并测试PSG的记录器和Actigraph正常工作,并使技术员和助理研究员离开,第二天拆除回收仪器和数据。分析数据分析两种协议:(1)anepoch-by-epochagreeme
6、ntanalysis(2)asleepvariablesconcordanceanalysis统计分析用到四组数:PSG,ACT40,ACT80,andAlgoSmooth测试方式分析:ankle,rawwrist,andadjustedwristACT40,ACT80的算法AlgoSmooth的算法要点:(1)计数大于0的连续2分钟内有数据>100,被定义为清醒状态(2)连续3计数为0定义为重返睡眠状态RESULTSDISUSSIONResultsclearlyshowedthattheActiw
7、atch-L(philips制造的Actigraphy)isbetterabletodetectsleepthantodetectwake.ACT80和AlgoSmooth相对于ACT40加强了对睡眠的监测,降低了对不眠的监测。ACT80和ACT40高估清醒,AlgoSmooth低估清醒,Despitetheweakdetectionofwakefulness,Actiwatch-Lappearstobeausefulinstrumentforassessingsleepinpreschoolers
8、whenusedwithanadaptedalgorithm谢谢