Verification of the possibility that oral moisture level measurement can predict dehydration in young people

Investigation of the usefulness of measuring oral moisture level for assessing generalized dehydration in young people. - Investigation of the relationship between oral moisture level and dehydration in young people.

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000061043

Enrollment

100

Registered

2026-04-01

Start date

2026-07-01

Completion date

Unknown

Last updated

2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dehydration

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

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.

Exclusion criteria

Exclusion criteria: Individuals with salivary gland disorders Individuals diagnosed with xerostomia (dry mouth) Other individuals deemed unsuitable by the principal investigator or co-investigators

Design outcomes

Primary

Measure	Time frame
Before and after training, conventional dehydration assessment methods such as dehydration rate, sweat rate (calculated from body weight and water intake), and urine specific gravity are performed, along with oral moisture, saliva secretion volume (secretion rate), salivary osmotic pressure, and expression levels of salivary biomarkers (Cortisol, s-IgA, a-Amylase). The correlations between these measurements are then analyzed.	—

Measure

Time frame

Before and after training, conventional dehydration assessment methods such as dehydration rate, sweat rate (calculated from body weight and water intake), and urine specific gravity are performed, along with oral moisture, saliva secretion volume (secretion rate), salivary osmotic pressure, and expression levels of salivary biomarkers (Cortisol, s-IgA, a-Amylase). The correlations between these measurements are then analyzed.

—

Countries

Japan

Contacts

Public ContactKairi Hayashi

Institute of Science Tokyo Departmento of Masticatory Function and Health Science

k.hayashi.spmd@tmd.ac.jp0358035522

Outcome results