Citation
Andrade Fernandes, Alex de and Gomes Moreira, Danilo and Brito, Ciro José and Silva, Cristiano Diniz da and Sillero Quintana, Manuel and Mendonça Pimenta, Eduardo and Bach, Aaron J.E. and Silami Garcia, Emerson and Bouzas Marins, Joao Carlos
(2016).
Validity of inner canthus temperature recorded by infrared thermography as a non-invasive surrogate measure for core temperature at rest, during exercise and recovery.
"Journal of Thermal Biology", v. 62
;
pp. 50-55.
ISSN 0306-4565.
https://doi.org/10.1016/j.jtherbio.2016.09.010.
Abstract
many disciplinary fields. Occupational and sports medicine research has attempted to determine a non-invasive proxy for core temperature particularly when access to participants is limited and thermal safety is of a concern due to protective encapsulating clothing, hot ambient environments and/or high endogenous heat production during athletic competition. This investigation aimed to determine the validity of inner canthus of the eye temperature (TEC) as an alternate non-invasive measure of intestinal core temperature (TC) during rest, exercise and post-exercise conditions. Twelve physically active males rested for 30 min prior to exercise, performed 60 min of aerobic exercise at 60% V̇O2max and passively recovered a further 60 min post-exercise. TEC and TC were measured at 5 min intervals during each condition. Mean differences between TEC and TC were 0.61 °C
during pre-exercise, −1.78 °C during exercise and −1.00 °C during post-exercise. The reliability between the
methods was low in the pre-exercise (ICC=0.49 [−0.09 to 0.82]), exercise (ICC=−0.14 [−0.65 to 0.44]) and postexercise (ICC=−0.25 [−0.70 to 0.35]) conditions. In conclusion, poor agreement was observed between the TEC
values measured through IRT and TC measured through a gastrointestinal telemetry pill. Therefore, TEC is not a
valid substitute measurement to gastrointestinal telemetry pill in sports and exercise science settings.