Effect of Hot Water Immersion on Heart Rate Variability and Glucose (HWI)

January 4, 2024 updated by: Jeff Moore, San Diego State University

Effect of Hot Water Immersion on Heart Rate Variability (HRV) and Glucose

Heat therapy has been shown to reduce risk of various diseases, including heart disease, alzheimers, and pneumonia, as well as all-cause mortality . A previous study found heating a single hand lowers postprandial blood glucose levels with a magnitude similar to certain exercise interventions such as 40 minutes of slow walking We propose that heating both feet and heating both legs up to the calves will result in similar glucose reductions in a dose response manner.Overview To determine the effect of heating both feet to the ankles and heating both legs to the calves on postprandial blood glucose

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

28

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • San Diego, California, United States, 92182
        • San Diego State University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • 18 to 65 years

Exclusion Criteria:

  • previously diagnosed diabetes

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: Thermoneutral
Participant sits at room temperature during an oral glucose tolerance test
Experimental: Feet heating
Participant sits with feet placed in hot water during an oral glucose tolerance test
Procedure: Feet heating
Feet placed in hot water
Experimental: Calf heating
Participant sits with legs, up to calves, placed in hot water during an oral glucose tolerance test
Procedure: Calf heating
Feet to calves placed in hot water

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Blood Glucose
Time Frame: 120 min
120 min

Secondary Outcome Measures

Outcome Measure
Time Frame
Heart rate variability
Time Frame: 120 min
120 min

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

San Diego State University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 2, 2020

Primary Completion (Actual)

March 1, 2021

Study Completion (Actual)

March 1, 2021

Study Registration Dates

First Submitted

December 21, 2023

First Submitted That Met QC Criteria

December 21, 2023

First Posted (Actual)

January 5, 2024

Study Record Updates

Last Update Posted (Estimated)

January 8, 2024

Last Update Submitted That Met QC Criteria

January 4, 2024

Last Verified

January 1, 2024

More Information

Terms related to this study

Other Study ID Numbers

  • Hot Water Immersion

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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