000130424 001__ 130424
000130424 005__ 20250923084410.0
000130424 0247_ $$2doi$$a10.3390/s24020447
000130424 0248_ $$2sideral$$a136511
000130424 037__ $$aART-2024-136511
000130424 041__ $$aeng
000130424 100__ $$0(orcid)0000-0002-0690-3193$$aPeláez-Coca, María Dolores
000130424 245__ $$aHeart Rate Variability to Automatically Identify Hyperbaric States Considering Respiratory Component
000130424 260__ $$c2024
000130424 5060_ $$aAccess copy available to the general public$$fUnrestricted
000130424 5203_ $$aThis study’s primary objective was to identify individuals whose physiological responses deviated from the rest of the study population by automatically monitoring atmospheric pressure levels to which they are exposed and using parameters derived from their heart rate variability (HRV). To achieve this, 28 volunteers were placed in a dry hyperbaric chamber, where they experienced varying pressures from 1 to 5 atmospheres, with five sequential stops lasting five minutes each at different atmospheric pressures. The HRV was dissected into two components: the respiratory component, which is linked to respiration; and the residual component, which is influenced by factors beyond respiration. Nine parameters were assessed, including the respiratory rate, four classic HRV temporal parameters, and four frequency parameters. A k-nearest neighbors classifier based on cosine distance successfully identified the atmospheric pressures to which the subjects were exposed to. The classifier achieved an 88.5% accuracy rate in distinguishing between the 5 atm and 3 atm stages using only four features: respiratory rate, heart rate, and two frequency parameters associated with the subjects’ sympathetic responses. Furthermore, the study identified 6 out of 28 subjects as having atypical responses across all pressure levels when compared to the majority. Interestingly, two of these subjects stood out in terms of gender and having less prior diving experience, but they still exhibited normal responses to immersion. This suggests the potential for establishing distinct safety protocols for divers based on their previous experience and gender.
000130424 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000130424 590__ $$a3.5$$b2024
000130424 592__ $$a0.764$$b2024
000130424 591__ $$aCHEMISTRY, ANALYTICAL$$b38 / 111 = 0.342$$c2024$$dQ2$$eT2
000130424 593__ $$aInstrumentation$$c2024$$dQ1
000130424 591__ $$aINSTRUMENTS & INSTRUMENTATION$$b24 / 79 = 0.304$$c2024$$dQ2$$eT1
000130424 593__ $$aAnalytical Chemistry$$c2024$$dQ1
000130424 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b132 / 366 = 0.361$$c2024$$dQ2$$eT2
000130424 593__ $$aMedicine (miscellaneous)$$c2024$$dQ2
000130424 593__ $$aInformation Systems$$c2024$$dQ2
000130424 593__ $$aBiochemistry$$c2024$$dQ2
000130424 593__ $$aAtomic and Molecular Physics, and Optics$$c2024$$dQ2
000130424 593__ $$aElectrical and Electronic Engineering$$c2024$$dQ2
000130424 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000130424 700__ $$0(orcid)0000-0003-2596-7237$$aHernando, Alberto
000130424 700__ $$0(orcid)0000-0003-0630-4366$$aLozano, María Teresa
000130424 700__ $$0(orcid)0000-0003-4068-127X$$aBolea, Juan
000130424 700__ $$0(orcid)0000-0002-4746-3139$$aIzquierdo, David$$uUniversidad de Zaragoza
000130424 700__ $$0(orcid)0000-0003-4273-5403$$aSánchez, Carlos$$uUniversidad de Zaragoza
000130424 7102_ $$12002$$2385$$aUniversidad de Zaragoza$$bDpto. Física Aplicada$$cÁrea Física Aplicada
000130424 7102_ $$15007$$2520$$aUniversidad de Zaragoza$$bDpto. Informát.Ingenie.Sistms.$$cÁrea Ingen.Sistemas y Automát.
000130424 773__ $$g24, 2 (2024), 447 [17 pp.]$$pSensors$$tSensors$$x1424-8220
000130424 8564_ $$s550576$$uhttps://zaguan.unizar.es/record/130424/files/texto_completo.pdf$$yVersión publicada
000130424 8564_ $$s2674312$$uhttps://zaguan.unizar.es/record/130424/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000130424 909CO $$ooai:zaguan.unizar.es:130424$$particulos$$pdriver
000130424 951__ $$a2025-09-22-14:29:35
000130424 980__ $$aARTICLE