title: Physiological monitoring in firefighter ensembles: wearable plethysmographic sensor vest versus standard equipment.
abstract: We evaluated the accuracy of a wearable sensor vest for real-time monitoring of physiological responses to treadmill exercise. Ten subjects in standard firefighter ensembles, treadmill exercising at 50% VO(2) max, had heart rate (HR), respiratory rate (RR), skin temperature (T(sk)), oxygen saturation (SaO(2)), tidal volume (V(T)), and minute ventilation (V(E)) recorded concurrently by a wearable plethysmographic sensor vest and standard laboratory physiological monitoring equipment for comparison. A high degree of correlation was noted for most of the measured variables [HR (r = 0.99), RR (r = 0.98), T(sk) (r = 0.98), V(E) (r = 0.88), and SaO(2) (r = 0.79)]. V(T) (r = 0.60) had a moderate correlation, although a paired differences analysis showed a mean paired difference of -0.03 L. This mean paired difference represents a 1.92% variation for V(T). Data from the wearable sensor vest is comparable to data captured from standard laboratory physiological monitoring equipment on subjects wearing standard firefighter ensembles while exercising at a moderate work rate. This study demonstrates the accuracy of the wearable sensor technology for these physiological parameters under these conditions and suggests that it could be useful for actual field studies of firefighters in traditional firefighting gear.
authors.affiliation: National Personal Protective Technology Laboratory/National Institute for Occupational Safety and Health/Centers for Disease Control and Prevention, Pittsburgh, Pennsylvania 15236, USA. esq6@cdc.gov
authors.forename: Aitor
authors.initials: A
authors.lastname: Coca
authors.forename: Raymond J
authors.initials: RJ
authors.lastname: Roberge
authors.forename: W Jon
authors.initials: WJ
authors.lastname: Williams
authors.forename: Douglas P
authors.initials: DP
authors.lastname: Landsittel
authors.forename: Jeffrey B
authors.initials: JB
authors.lastname: Powell
authors.forename: Andrew
authors.initials: A
authors.lastname: Palmiero
mesh_terms: D000328:Adult; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008991:Monitoring, Physiologic / Q000295:instrumentation* / Q000379:methods; D016273:Occupational Exposure / Q000032:analysis* / Q000517:prevention & control; D010100:Oxygen / Q000378:metabolism; D056152:Respiratory Rate; D012881:Skin Temperature; D013312:Stress, Physiological; D013990:Tidal Volume
chemical_list: D010100:Oxygen