Warm baths may boost walking ability in PAD patients
NCT ID NCT03900832
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested whether sitting in a warm bath (38-41°C) for up to 30 minutes could reduce blood pressure spikes during exercise in 33 people with peripheral artery disease (PAD). Participants walked on a treadmill, and researchers measured walking time, blood pressure, and heart rate. The goal was to see if heat exposure makes exercise easier by calming the body's stress response.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- warm bath (water at 38-41°C)
- What this could lead to
- If successful, this could point toward a simple, drug-free way to improve exercise tolerance in people with PAD.
- What could go wrong
- This is a very early, small study (33 people) testing a short-term effect. The results may not apply to all PAD patients or lead to a lasting treatment.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Early phase 1
The earliest testing in people: a first look at safety, in a very small group.
- Participants
-
33 people
The number who actually took part.
- Started
-
May 2019
- Finished
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Jul 2025
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
21 to 85 years
- Sex
-
Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: All subjects * Capable of giving informed consent * Any race or ethnicity * Men and women age 21- 85 years (inclusive) * Fluent in written and spoken English Patients with peripheral arterial disease (PAD) * Diagnosed with PAD (i.e., ankle-brachial index below 0.9) * Fontaine stage II or less - no pain while resting * Satisfactory history and physical exam Healthy subjects * Satisfactory history and physical examination * Free of acute medical conditions Exclusion Criteria: For patients with PAD and Healthy subjects * Age \< 21 years * Pregnant or nursing women * Decisional impairment * Prisoners For patients with PAD * History of CAD with symptoms of unstable angina or myocardial infarction (\<6 months) * History of epilepsy or seizure disorders For healthy subjects • Any other chronic diseases (heart, lung, neuromuscular disease or diabetes)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Penn State Milton S. Hershey Medical Center
Hershey, Pennsylvania, 17033, United States
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Other studies related to the condition(s) this trial covers.