Potential assessment of dehydration during high-intensity training using a capacitance sensor for oral mucosal moisture: Evaluation of elite athletes in a field-based survey

Gen Tanabe, Tetsuya Hasunuma, Yuto Inai, Yasuo Takeuchi, Hiroaki Kobayashi, Kairi Hayashi, Shintaro Shimizu, Nana S. Kamiya, Hiroshi Churei, Yuka I. Sumita, Katsuhiko Suzuki, Naoki Moriya, Toshiaki Ueno*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Background: The aim of this clinical study was to reveal the relationship between body dehydration and oral mucosa moisture measured by the use of a capacitance sensor for oral epithelial moisture. Methods: The following clinical parameters were recorded from each one of 19 athletes in a one-week period of high-intensity exercise at the U-23 Triathlon Training Camp in summer and winter; body weight, urine specific gravity, oral mucosa moisture, subjective oral thirst, and subjective throat thirst (within 30 min after waking and before breakfast at 7:00 a.m. on Day2 and Day6). Results: There were no significant differences in the mean values of body weight, urine specific gravity, oral mucosa moisture, oral thirst, and throat thirst between Day2 and Day6 in both measurements in summer and winter. The oral mucosa moisture had a moderate negative correlation with urine specific gravity (p < 0.05, r = −0.45). Conclusions: This study suggests that oral mucosal moisture determined using an oral moisture-checking device could be a potential index for assessing dehydration during sports activities.

Original languageEnglish
Article number196
JournalChemosensors
Volume9
Issue number8
DOIs
Publication statusPublished - 2021 Aug

Keywords

  • Capacitance sensor
  • Dehydration
  • Oral mucosal moisture
  • Urine specific gravity

ASJC Scopus subject areas

  • Analytical Chemistry
  • Physical and Theoretical Chemistry

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