20.500.12556/RUL-136169 Reliability and validity of the CORE sensor to assess core body temperature during cycling exercise Monitoring core body temperature (T$_c$) during training and competitions, especially in a hot environment, can help enhance an athlete’s performance, as well as lower the risk for heat stroke. Accordingly, a noninvasive sensor that allows reliable monitoring of T$_c$ would be highly beneficial in this context. One such novel non-invasive sensor was recently introduced onto the market (CORE, greenTEG, Rümlang, Switzerland), but, to our knowledge, a validation study of this device has not yet been reported. Therefore, the purpose of this study was to evaluate the validity and reliability of the CORE sensor. In Study I, 12 males were subjected to a low-to-moderate heat load by performing, on two separate occasions several days apart, two identical 60-min bouts of steady-state cycling in the laboratory at 19 °C and 30% relative humidity. In Study II, 13 males were subjected to moderate-to-high heat load by performing 90 min of cycling in the laboratory at 31 °C and 39% relative humidity. In both cases the core body temperatures indicated by the CORE sensor were compared to the corresponding values obtained using a rectal sensor (T$_{rec}$). The first major finding was that the reliability of the CORE sensor is acceptable, since the mean bias between the two identical trials of exercise (0.02 °C) was not statistically significant. However, under both levels of heat load, the body temperature indicated by the CORE sensor did not agree well with T$_{rec}$, with approximately 50% of all paired measurements differing by more than the predefined threshold for validity of ≤0.3 °C. In conclusion, the results obtained do not support the manufacturer’s claim that the CORE sensor provides a valid measure of core body temperature. validity reliability core body temperature rectal temperature CORE sensor cycling non-invasiveness merjenje temperature športniki kolesarstvo veljavnost zanesljivost telesna temperatura jedra rektalna temperatura senzor CORE kolesarjenje neinvazivnost true false true Angleški jezik Slovenski jezik Članek v reviji 2022-04-14 10:07:41 2022-04-14 10:07:42 2022-09-15 04:13:29 0000-00-00 00:00:00 2021 0 0 13 str. iss. 17, art. 5932 Vol. 21 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 796.61.071.2 1424-8220 10.3390/s21175932 75500803 sensors-21-05932-v2.pdf sensors-21-05932-v2.pdf 1 7FF012ADC028ADFF39BF329A081B22E5 7afb58cdd44a1685ebe8f1740fa5086b8decf862e0fec10b9dab6c9717cf2d8e 21f7627c-bbca-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=155667 https://www.mdpi.com/1424-8220/21/17/5932 1 e8103be2-bbc9-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=155666 Fakulteta za šport 0 0 0