sistentmeasurements.Ascrewmechanismwasfirstusedtoapplythesensorstotheskin.Butreadingswereveryvariableandsothistechniquewasreplacedbythatinwhichthesensorsarefixedtotheskinbyelasticstrips.Thisledtobetterresults.Armpositionisanothercriticalfeatureofmeasurement.Twopositions,normalanddependent,wereanalyzedindetail,estsubject.Inthenormalposition,thesubjectsitswiththearmrestingonatable.Alltestsubjectmeasurementsweremadeinthisposition.Inthedependentposition,thesubjectsitswiththearmhangingstraightdown.ThePWVvaluesweresmallerinthispositionandthevariabilitywasmuchgreater,sothistechniquewasdiscarded.Acorrectionmodule,‘DeleteIncorrect’,wasusedtodeletePWVvaluesresultingfromaberrantsignals,monlybyarmmovementduringthemeasurement.TheseunrealisticvaluesweredeletedbeforethePWVvalueswerepassedtotheanalysisVI.
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