摘要
<正>Background:Short-legwalkingbootsareacommoninterventionforacuteandchroniclowerextremityinjury.Fewstudieshaveexaminedtheneuromuscularadaptationsassociatedwithshort-legwalkingbootsandnopreviousstudyhasinvestigatedtimingcharacteristicsofmuscleactivationduringgait.Thepurposeofthecurrentstudywastoexaminethetimingandamplitudesofmuscleactivationoftheextrinsicanklemusculatureduringwalkingintwotypesofshort-legwalkingboots.Methods:Elevenhealthyyoungadultsperformedfivelevelwalkingtrialsataself-selectedpaceineachofthreeconditions:normalwalking.GaitWalkerandEqualizershort-legwalkingboots.Groundreactionforceswerecollectedfromaforceplatformwhilesurfaceelectromyography(EMG)wascollectedfromthetibialisanterior,peroneuslongusandmedialgastrocnemius.EMGsignalswererectifiedandsmoothedusingtherootmeansquaredwitha20-mssmoothingwindowandwerenormalizedtothelargestmeanofthenormalwalkingtrials.Arepeatedmeasuresanalysisofvariancewasusedtoassesstheeffectofshort-legwalkingbootsontheonset,durationandamplitudeofmuscleactivation.Results:Short-legwalkingbootsweregenerallyassociatedwithearlieronsetsofmuscleactivationandlongerdurationsofmuscleactivation.However,therewasnoreductioninEMGamplitude.Conclusion:Thefindingsofthisstudyshowthattheinducedalterationsinmuscleactivationpatternsmaylimittheshort-legwalkingboots.
出版日期
2012年01月11日（中国期刊网平台首次上网日期，不代表论文的发表时间）
