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Bongers, CCWG, Hopman, MTE and Eijsvogels, TMH (2017) Validity and reliability of the myTemp ingestible temperature capsule. Journal of Science and Medicine in Sport. ISSN 1878-1861
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Validity and reliability of the myTemp ingestible temperature capsule..pdf - Accepted Version Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (674kB) | Preview |
Abstract
OBJECTIVES: An accurate and non-invasive measurement of core body temperature (Tc) is of great importance to quantify exercise-induced increases in Tc in athletes or to assess changes in Tc in patient populations. The use of ingestible gastrointestinal telemetric temperature capsules is widely accepted as a surrogate marker for Tc, but widespread implementation is lacking due to the high costs of these disposable capsules. A new and cheaper temperature capsule system (i.e. myTemp) was recently introduced. The aim of present study is to determine the validity and test-retest reliability of the myTemp system. DESIGN: Ex-vivo experimental study. METHODS: Fifteen ingestible temperature capsules (myTemp, Nijmegen, Netherlands) were tested in a highly temperature controlled water bath, in which the water temperature gradually increased from 34°C to 44°C. The study protocol was performed twice for each temperature capsule. RESULTS: Mean difference between myTemp temperature and water bath temperature was -0.001±0.005°C (Limit of Agreement (LOA): ±0.011°C) during Trial 1 (p=0.11) and -0.001±0.006°C (LOA: ±0.012°C) during Trial 2 (p=0.039). Furthermore, an Intraclass Correlation Coefficient (ICC) of 1.00 was found for both trials. A systematic difference between Trials 1 and 2 of 0.004±0.008°C (LOA: ±0.015°C) was found (p<0.001), whereas the ICC between both trials was 1.00 and the standard error of measurement was 0.005°C. CONCLUSIONS: Although we found a systematic bias for the sensitivity (-0.001°C) and reliability (0.004°C), these values can be considered insignificant from a physiological and clinical perspective. Thus, the myTemp ingestible temperature capsule is a valid technique to measure (water) temperature under controlled circumstances.
| Item Type: | Article |
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| Uncontrolled Keywords: | 1106 Human Movement And Sports Science, 1117 Public Health And Health Services |
| Subjects: | R Medicine > RC Internal medicine > RC1200 Sports Medicine |
| Divisions: | Sport & Exercise Sciences |
| Publisher: | Elsevier |
| Related URLs: | |
| Date Deposited: | 07 Jul 2017 10:33 |
| Last Modified: | 04 Sep 2021 11:21 |
| DOI or ID number: | 10.1016/j.jsams.2017.06.006 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/6799 |
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