Effects of sauna-induced passive heat exposure on the maintenance and decay of heat acclimation induced by short-term exercise in a hot environment

Randomized controlled trial on the effects of sauna-induced passive heat exposure on the maintenance and decay of heat acclimation induced by short-term exercise in a hot environment - Trial on sauna bathing and short-term heat acclimation

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059211

Enrollment

Registered

2025-09-27

Start date

2026-10-01

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

Endurance performance

Interventions

Participants in the intervention group will enter a designated sauna room at an ambient temperature of 80 to 90 degree celsius, three sets of 10 minutes each, six times over two weeks following heat a

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Healthy male aged 18 to 39 years old

Exclusion criteria

Exclusion criteria: People with chronic diseases

Design outcomes

Primary

Measure	Time frame
Sweat volume and core body temperature during the heat evaluation protocol	—

Secondary

Measure	Time frame
Heart rate, RPE, and sodium ion concentration in sweat during the heat acclimation evaluation protocol	—

Countries

Japan

Contacts

Public ContactKumpei Tanisawa

Waseda University Faculty of Sport Sciences

tanisawa@waseda.jp0429476745

Outcome results

None listed

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