Tokyo, April 1 -- UMIN Clinical Trials Registry (UMIN-CTR) received information related to the study (UMIN000061043) titled 'Verification of the possibility that oral moisture level measurement can predict dehydration in young people' on April 1.

Study Type: Observational

Primary Sponsor: Institute - Institute of Science Tokyo

Condition: Condition - Dehydration Classification by malignancy - Others Genomic information - NO

Objective: Narrative objectives1 - The recent increase in heatstroke cases due to extreme heat has become a social problem. While heatstroke is most common among the elderly, it also frequently occurs among younger age groups (7-18 years old) under school supervision, making it a significant issue from a school safety perspective. Dehydration is a major contributing factor, making it crucial to understand dehydration levels for heatstroke prevention.

However, dehydration often presents with few noticeable symptoms, making it important to monitor the condition over time before symptoms appear. Currently, however, there is no method for objectively and immediately assessing dehydration in schools and other settings.

Therefore, we focused on "oral moisture level." Oral moisture level can be easily measured using an oral moisture meter, and since thirst is closely related to dehydration, we hypothesized that it might be possible to estimate dehydration levels from oral moisture. We conducted an experiment applying this to assessing dehydration levels in athletes, and the data revealed a certain correlation between dehydration levels during sports activities and oral moisture level.

However, since studies have not yet been conducted on young people, whose saliva composition and secretion volume differ, it is questionable whether the results can be directly applied to school safety measures. Therefore, in this study, we planned an experiment with the aim of clarifying the correlation between oral moisture and dehydration in young people. Basic objectives2 - Efficacy

Eligibility: Age-lower limit - 7 years-old = Gender - Male and Female Key inclusion criteria - This program is for elementary school, junior high school, and high school students (ages 7-18, regardless of gender) who regularly engage in exercise. Key exclusion criteria - Individuals with salivary gland disorders Individuals diagnosed with xerostomia (dry mouth) Other individuals deemed unsuitable by the principal investigator or co-investigators Target Size - 100

Recruitment Status: Recruitment status - Preinitiation Date of protocol fixation - 2026 Year 03 Month 24 Day Anticipated trial start date - 2026 Year 07 Month 01 Day Last follow-up date - 2028 Year 03 Month 31 Day

To know more, visit https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000069792

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