APA
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Contreras–Briceño, F., Espinosa-Ramírez, M., Hevia, G., Llambias, D., Carrasco, M., Cerda, F., … Viscor, G. (2019). Reliability of NIRS portable device for measuring intercostal muscles oxygenation during exercise. Jurnal Sport Science.
Chicago/Turabian
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Contreras–Briceño, Felipe, Maximiliano Espinosa-Ramírez, Gonzalo Hevia, Diego Llambias, Miguel Carrasco, Francisco Cerda, Antonio López-Fuenzalida, P. García, L. Gabrielli, and Ginés Viscor. “Reliability of NIRS Portable Device for Measuring Intercostal Muscles Oxygenation during Exercise.” Jurnal sport science (2019).
MLA
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Contreras–Briceño, Felipe, et al. “Reliability of NIRS Portable Device for Measuring Intercostal Muscles Oxygenation during Exercise.” Jurnal Sport Science, 2019.
BibTeX Click to copy
@article{felipe2019a,
title = {Reliability of NIRS portable device for measuring intercostal muscles oxygenation during exercise},
year = {2019},
journal = {Jurnal sport science},
author = {Contreras–Briceño, Felipe and Espinosa-Ramírez, Maximiliano and Hevia, Gonzalo and Llambias, Diego and Carrasco, Miguel and Cerda, Francisco and López-Fuenzalida, Antonio and García, P. and Gabrielli, L. and Viscor, Ginés}
}
ABSTRACT This study assessed the intra-individual reliability of oxygen saturation in intercostal muscles (SmO2-m.intercostales) during an incremental maximal treadmill exercise by using portable NIRS devices in a test-retest study. Fifteen marathon runners (age, 24.9 ± 2.0 years; body mass index, 21.6 ± 2.3 kg·m−2; V̇O2-peak, 63.7 ± 5.9 mL·kg−1·min−1) were tested on two separate days, with a 7-day interval between the two measurements. Oxygen consumption (V̇O2) was assessed using the breath-by-breath method during the V̇O2-test, while SmO2 was determined using a portable commercial device, based in the near-infrared spectroscopy (NIRS) principle. The minute ventilation (VE), respiratory rate (RR), and tidal volume (Vt) were also monitored during the cardiopulmonary exercise test. For the SmO2-m.intercostales, the intraclass correlation coefficient (ICC) at rest, first (VT1) and second ventilatory (VT2) thresholds, and maximal stages were 0.90, 0.84, 0.92, and 0.93, respectively; the confidence intervals ranged from −10.8% – +9.5% to −15.3% – +12.5%. The reliability was good at low intensity (rest and VT1) and excellent at high intensity (VT2 and max). The Spearman correlation test revealed (p ≤ 0.001) an inverse association of SmO2-m.intercostales with V̇O2 (ρ = −0.64), VE (ρ = −0.73), RR (ρ = −0.70), and Vt (ρ = −0.63). The relationship with the ventilatory variables showed that increased breathing effort during exercise could be registered adequately using a NIRS portable device.