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Repeated Far Infrared Sauna Bathing in Adults With Obesity

Targeting Hypertension and Insulin Resistance With Heat Therapy

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07158047
Enrollment
20
Registered
2025-09-05
Start date
2022-03-07
Completion date
2026-07-31
Last updated
2026-03-04

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

Conditions

Obesity (Disorder)

Keywords

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

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.

Detailed description

Obesity can increase the risk for cardiovascular and metabolic diseases. Lifestyle interventions are needed to reduce this risk. Far infrared saunas are one form of heat therapy that may help reduce these risks, however, there is limited research within a population with obesity. It is hypothesized that repeated far infrared sauna bathing will improve cardiovascular and metabolic function in adults with obesity.

Interventions

OTHERHeat therapy

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

Sponsors

University of Oregon
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Intervention model description

Time control versus heat therapy group

Eligibility

Sex/Gender
ALL
Age
18 Years to 59 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Blood pressure change10 weeksChange in systolic and diastolic blood pressures after 30 sessions of Intervention
Blood glucose10 weeksChange in plasma glucose levels after Intervention

Secondary

MeasureTime frameDescription
Arterial stiffness reduction10 weeksChange in Carotid-femoral Pulse Wave Velocity (m/s) after Intervention
Serum insulin10 weeksChange in serum insulin levels after Intervention

Countries

United States

Contacts

CONTACTChristopher T Minson, PhD
minson@uoregon.edu541-346-7583
CONTACTJohn R Halliwill, PhD
halliwil@uoregon.edu541-346-7591
PRINCIPAL_INVESTIGATORChristopher T Minson, PhD

University of Oregon

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 5, 2026