Hot bath after exercise may lower blood pressure while you sleep
NCT ID NCT06348225
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether soaking your legs in hot water after a 30-minute walk can lower blood pressure better than exercise or heat alone. Twenty adults with slightly high blood pressure completed four different sessions: walking plus a lukewarm bath, walking plus a hot bath, hot bath only, and no activity. Researchers measured blood pressure during sleep, heart rhythm, and blood vessel health to see if the combination offers extra heart benefits.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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20 people
The number who actually took part.
- Started
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Jul 2024
- Finished
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Apr 2026
- Lead sponsor
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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
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18 to 50 years
- Sex
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Anyone
- Healthy volunteers
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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: * resting blood pressure \>120/80 mmHg; measured at screening visit * BMI between 18-39.9 * capable of walking 30 min at a moderate intensity on a treadmill Exclusion Criteria: * diagnosed hypertension * taking antihypertensive medications * history of heat injury or heat illness
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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
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Providence College
Providence, Rhode Island, 02918, United States
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Other studies related to the condition(s) this trial covers.
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