Reliability of low-cost near-infrared spectroscopy in the determination of muscular oxygen saturation and hemoglobin concentration during rest, isometric and dynamic strength activity

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dc.contributor.authorMiranda-Fuentes C.
dc.contributor.authorGuisado-Requena I.M.
dc.contributor.authorDelgado-Floody P.
dc.contributor.authorArias-Poblete L.
dc.contributor.authorPérez-Castilla A.
dc.contributor.authorJerez-Mayorga D.
dc.contributor.authorChirosa-Rios L.J.
dc.date.accessioned2021-09-01T19:56:57Z
dc.date.available2021-09-01T19:56:57Z
dc.date.issued2020-12
dc.descriptionIndexación Scopuses
dc.description.abstractBackground: The objective of this study was to establish the reliability of the Humon Hex near-infrared reflectance spectroscopy (NIRS) in determining muscle oxygen saturation (SmO2) and hemoglobin concentration (Hgb) at rest and during isometric and dynamic strength exercises using a functional electromechanical dynamometer (FEMD). Methods: The SmO2 and Hgb values of sixteen healthy adults (mean ± standard deviation (SD): Age = 36.1 ± 6.4 years) were recorded at rest and during isometry (8 s), dynamic strength I (initial load of 40% of the average isometric load, with 2 kg increments until muscle failure) and dynamic strength II (same as I, but with an initial load of 40% of the maximum isometric load) activity. To evaluate the reliability in the determination of SmO2 and Hgb of this device, intraclass correlation coefficient (ICC), standard error of measurement (SEM) and coefficient of variation (CV) were obtained. Results: The main results obtained are SmO2 at rest (CV = 5.76%, SEM = 3.81, ICC = 0.90), isometric strength (CV = 3.03%, SEM = 2.08, ICC = 0.92), dynamic strength I (CV = 10.6, SEM = 7.17, ICC = 0.22) and dynamic strength II (CV = 9.69, SEM = 6.75, ICC = 0.32); Hgb at rest (CV = 1.97%, SEM = 0.24, ICC = 0.65), isometric strength (CV = 0.98%, SEM = 0.12, ICC = 0.96), dynamic strength I (CV = 3.25, SEM = 0.40, ICC = 0.54) and dynamic strength II (CV = 2.74, SEM = 0.34, ICC = 0.65). Conclusions: The study shows that Humon Hex is a reliable device to obtain SmO2 and Hgb data in healthy adult subjects at rest and during isometric strength, providing precision for measurements made with this device. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.es
dc.description.urihttps://www.mdpi.com/1660-4601/17/23/8824
dc.identifier.citationInternational Journal of Environmental Research and Public Health, Volume 17, Issue 23, Pages 1 - 141 December 2020 Article number 8824es
dc.identifier.doi10.3390/ijerph17238824
dc.identifier.issn16617827
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/20072
dc.language.isoenes
dc.publisherMDPI AGes
dc.subjectNear-Infrared Spectroscopyes
dc.subjectDeoxyhemoglobines
dc.subjectOxygenationes
dc.titleReliability of low-cost near-infrared spectroscopy in the determination of muscular oxygen saturation and hemoglobin concentration during rest, isometric and dynamic strength activityes
dc.typeArtículoes
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