简介：Background:Infraredthermographicimaging(IRTG)isasafeandreliabletechnologyusedtomonitorskintemperature.ThemainaimofourstudywastoevaluatetherelationshipbetweenskintemperaturechangesandmusclefatigueinordertoanswerthemainresearchquestionifIRTGcanbeusedtomonitormusclefatigue.Methods:Thiswasacasestudyperformedona23-year-oldtrainedmiddledistancerunner.Afterwarm-upthesubjectwasexercisingonthedynamometerfor7.5minat120?/sperformingonlyconcentriccontractionsofquadriceps.AtthesametimeIRTGrecordingofboth(exercisingandnon-exercising)quadricepswasperformed.Results:Acorrelationalanalysisthatwasperformedinordertoquantifytherelationshipbetweenpowerandtemperaturechangeovertimehasshownthatthereisasignificantnegativecorrelationbetweenskintemperatureincreaseandpowerdecrease(r=-0.543,p=0.036)ofexercisingquadriceps.Inlinearregressionmodeltheexercisingquadricepspowercouldbepredictedfromskintemperature.Nosuchrelationshipswerenotedforthenon-exercisinglimbthatservedasacontrol.Conclusion:Webelievethatcorrelationbetweenskintemperaturechangeandmusclepoweroutputasdescribedinthiscasestudydeservesfurtheranalysisonthelargersampleincludingsubjectsofthedifferentages,healthstatus,andphysicalabilitiesinordertocreateanewtoolformonitoringthemusclefatigue.