e-journal
Decision Support for Subjects Exposed to Heat Stress
Abstract—Thephysiologicalandactivitystrainindex(PASI)has beendevelopedtoimprovetheonlinedecisionsupportforworkers exposed to heat stress. Fire fighters (smoke divers) which are exposedtobothheat-stressandhigh-risksituationshavebeenusedas test case. PASI combines a modified version of the relatively wellknown physiological strain index (PSI) with activity data from accelerometers. The algorithm has been developed based on tests in a laboratory, and it has been verified in two field tests performed by smoke divers exposed to heat stress. The verification demonstrates that it is possible to distinguish between high- and low-risk situations when data from accelerometers are added to the situation analysis. This indicates that PASI can contribute to animprovedriskassessmentandonlinedecisionsupportforsmoke divers compared to using PSI alone.
IndexTerms—Biomedicalmonitoring,decisionsupportsystems, heat stress, wearable sensors.
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