Examination of the cooling effect of a low-temperature CO2-rich water

Examination of the cooling effect of a low-temperature CO2-rich water - Examination of the cooling effect of a low-temperature CO2-rich water

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000042715

Enrollment

Registered

2020-12-11

Start date

2020-12-11

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

heat stroke

Interventions

After the body temperature has been raised by about 1 degree Celsius, whole body water immersion will be conducted. After passive heating, the subjects immersed in 25 degree Celsius CO2-rich water. Af

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Healthy male students of the University of Shizuoka and the University of Shizuoka Junior College, who were found to be in good health during the physical examination, and who explained the study content orally and in writing, and who agreed to participate in the measurement.

Exclusion criteria

Exclusion criteria: Those who do not conform to the incluson criteria.

Design outcomes

Primary

Measure	Time frame
The cooling time and cooling rate at which the raised body temperature returns to its original temperature (before heating) by immersion in a CO2-rich water or tap water	—

Secondary

Measure	Time frame
body temperature	—

Countries

Japan

Contacts

Public ContactKeiji Hayashi

University of Shizuoka Junior College

khayashi@u-shizuoka-ken.ac.jp054-202-2639

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026