Print Email Facebook Twitter Comparison of two telemetric intestinal temperature devices with rectal temperature during exercise Title Comparison of two telemetric intestinal temperature devices with rectal temperature during exercise Author Bogerd, C.P. Velt, K.B. Annaheim, S. Bongers, C.C.W.G. Eijsvogels, T.M.H. Daanen, H.A.M. Publication year 2018 Abstract OBJECTIVE: The discomfort caused by rectal probes and esophageal probes for the estimation of body core temperature has triggered the development of gastrointestinal (GI) capsules that are easily accepted by athletes and workers due to their non-invasive characteristics. We compare two new GI capsule devices with rectal temperature during cycle ergometer exercise and rest. APPROACH: Eight participants followed a protocol of (i) 30 min exercise with a power output of 130 W, (ii) 5 min rest, (iii) 10 min self-paced maximum exercise, and (iv) 15 min rest. Core temperature was measured using two GI-capsule devices (e-Celsius and myTemp) and rectal temperature. MAIN RESULTS: The myTemp system provided only slightly different temperatures to the rectal temperature probe during rest and exercise. However, the factory-calibrated e-Celsius system showed a systematic rectal temperature underestimation of 0.2 Â°C that is corrected in the 2018 versions. Both GI capsules reacted faster to temperature changes in the body compared to the rectal temperature probe during the rest period following maximum exercise. SIGNIFICANCE: The GI-capsules react faster to temperature changes in the body compared to the rectal temperature probe, in particular during the rest period following exercise. Subject HealthCore temperatureGastrointestinal temperatureComparisonTelemetrics temperature measuremente-CelsiusMytempAdultBody TemperatureDevicesExerciseFemaleHumansIntestinesMalePhysiologyRectumRestTelemetryThermometers To reference this document use: http://resolver.tudelft.nl/uuid:0ee9e45f-ad6e-4c23-a5a4-ef1bb8cb9443 DOI https://doi.org/10.1088/1361-6579/aaad52/ TNO identifier 861679 ISSN 1361-6579 Source Physiological measurement, 39 (3) Document type article Files To receive the publication files, please send an e-mail request to TNO Library.