Recruiting

Far Infrared Sauna

Sponsor:

University of Oregon

Code:

NCT07158047

Conditions

Obesity (Disorder)

Eligibility Criteria

Sex: All

Age: 18 - 59

Healthy Volunteers: Not accepted

Interventions

Heat therapy

Study Details

Brief summary:

This is a clinical trial to determine if 30 sessions of far infrared sauna bathing can improve cardiovascular and metabolic function in adults with obesity.

Conditions

Obesity (Disorder)

Study ID

NCT07158047

Start date

Mar 7, 2022

Status verified date

Mar, 2026

Completion date

Jul 31, 2026

Anticipated

Primary completion date

Jun 30, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 59

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • BMI between 30-45 kg/m2

Exclusion Criteria:

  • Diagnosed diabetes
  • Greater than stage 2 hypertension
  • Coagulopathies
  • Allergies to lidocaine
  • Medications affecting blood pressure
  • Blood clotting, and blood sugars
  • Smoker
  • Pregnant
  • Desiring to become pregnant in the near future
  • Breastfeeding
  • BMI less than 30
  • BMI greater than 45 kg/m2
  • Exercising > 120 min/week
  • Taking medications (other than hormone contraceptives)
  • Not willing to stop taking medications (other than hormone contraceptives) for 24 hours before testing days

Study Design

Enrollment

20 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Basic Science

Interventions and Outcome Measures

Arms

experimental: Heat therapy

Group will undergo 30 sessions of heat therapy over approximately 10 weeks. Sessions will require participants to sit in a far infrared sauna for up to 45 min for 3 to 4 times per week.

no intervention: Time control group

No participation in sauna bathing. Maintain lifestyle habits for approximately 10 weeks.

Interventions

Heat therapy

30 sessions of far infrared sauna bathing (45-60C) for up to 45 min

Primary outcome measure

  • Blood pressure change [ Time Frame: 10 weeks ]
  • Blood glucose [ Time Frame: 10 weeks ]

Central Contacts and Locations

Central contacts

Christopher T Minson, PhD

541-346-7583minson@uoregon.edu

John R Halliwill, PhD

541-346-7591halliwil@uoregon.edu

Locations

University of Oregon

Recruiting

Eugene, Oregon, United States, 97401

Contacts

Christopher T Minson, PhD

5413467583minson@uoregon.edu

John R Halliwill, PhD

5413467591halliwil@uoregon.edu

Principal Investigator:

Christopher T Minson, PhD

More Information

Sponsor

University of Oregon

Last update posted

Mar 4, 2026

Last verified

Mar, 2026

Keywords

  • heat therapy
  • insulin resistance
  • arterial stiffness
  • blood pressure
  • obesity
  • sauna
  • vascular health
  • cardiovascular
  • metabolic function

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by University of Oregon on 2026-03-04.