简介：Background:Dissociativeattentionalstimuli(e.g.,music,video)areeffectiveindecreasingratingsofperceivedexertion(RPE)duringlow-tomoderateintensityexercise,buthaveinconsistentresultsduringexerciseathigherintensity.ThepurposeofthisstudywastoassessattentionalfocusandRPEduringhigh-intensityexerciseasafunctionofbeingexposedtomusic,video,both(musicandvideo),orano-treatmentcontrolcondition.Methods:Duringthefirstsession,healthymen(n=15)completedamaximalfitnesstesttodeterminetheworkloadnecessaryforhigh-intensityexercise(operationalizedas125%ventilatorythreshold)tobeperformedduringsubsequentsessions.On4subsequentdays,theycompleted20minofhigh-intensityexerciseinano-treatmentcontrolconditionorwhilelisteningtomusic,watchingavideo,orboth.Attentionalfocus,RPE,heartrate,anddistancecoveredweremeasuredevery4minduringtheexercise.Results:MusicandvideoincombinationresultedinsignificantlylowerRPEacrosstime(partialη~2=0.36)andthesizeoftheeffectincreasedovertime(partialη~2=0.14).Additionally,musicandvideoincombinationresultedinasignificantlymoredissociativefocusthantheotherconditions(partialη~2=0.29).Conclusion:Musicandvideoincombinationmayresultinlowerperceivedexertionduringhigh-intensityexercisewhencomparedtomusicorvideoinisolation.Futureresearchwillbenecessarytotestifreductionsinperceivedexertioninresponsetodissociativeattentionalstimulihaveimplicationsforexerciseadherence.