Contrast Water Therapy and sauna improve brain fatigue and autonomic nervous system function in public baths.

Contrast Water Therapy and sauna improve brain fatigue and autonomic nervous system function in public baths. - Contrast Water Therapy and sauna improve brain fatigue and autonomic nervous system function in public baths.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000051491

Enrollment

Registered

2023-07-03

Start date

2023-07-03

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

Healthy adult

Interventions

Contrast Water Therapy(CWT), single time sauna bathing with cold water, single time

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Persons aged 20-59 years who are explained the research plan and obtained informed consent. Subjects who regularly use CWT and sauna with cold water bath and are in good physical condition.

Exclusion criteria

Exclusion criteria: Exclude persons with a history of cardiovascular disease and hypertension. Persons who are prohibited from bathing by a doctor.

Design outcomes

Primary

Measure	Time frame
autonomic nerve function	—

Secondary

Measure	Time frame
brain fatigue	—

Countries

Japan

Contacts

Public ContactShinya Hayasaka

Japan Health & Research Institute Onsen Medical Science Research Center, Japan Health & Research Institute

info@jph-ri.or.jp03-5290-1621

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Sep 19, 2026