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Trial, not randomized · measured the question itself

Trial in people with high blood pressure: sauna and running both lowered resting pressure

Winterfeld and colleagues · Zeitschrift fur die gesamte innere Medizin und ihre Grenzgebiete · 1983

Original title: [Effect of sauna and walking series on blood pressure, peripheral microcirculation and performance behavior in essential hypertension].

Under review. A person has not yet checked this summary against the paper. It is written from the PubMed abstract. Until a person checks it, search engines are asked not to list this page.

What the study found

Points to benefit

Both sauna baths and running lowered blood pressure at rest and improved blood flow in the muscles. Under heavier exercise load, blood pressure was not changed by either method.

The study at a glance

Type of study
Trial, not randomized
Who or what was studied
people with mild to moderate high blood pressure already taking propranolol
What was tested
Sauna baths over several weeks, vs a running series
What it measured
The question itself: heart disease, blood pressure and death
Who has a stake
No disclosure in PubMed
No disclosure in PubMed.
Journal
Zeitschrift fur die gesamte innere Medizin und ihre Grenzgebiete, 1983
Source
PubMed record 6649721. This page is based on the abstract only.

How much this study counts

  • –Not randomized: the groups may differ in ways that affect the result.
  • •The abstract does not say how many people took part.
  • ✓Measured the question itself: heart disease, blood pressure and death.
  • •The PubMed record has no conflict-of-interest statement.
  • •Summarized from the PubMed abstract only. The full paper may hold details the abstract leaves out.

✓ Strength– Limit• Note

These points come from fixed rules about the type of study, its size and length, what it measured, and who has a stake. Every study on Digestery gets the same rules.

Where this study sits

Each dot is one on-topic paper on this question. Steps near the top answer the question more directly.

↑ Stronger evidence

  1. Trials in people: heart disease, blood pressure and death

    3

    3 benefit

    ↑ This study is the ringed dot

  2. Trials in people: other measures

    2

    1 benefit, 1 no difference

  3. Trials in people: lab tests or safety

    5

    2 benefit, 1 mixed, 2 no difference

  4. Population studies

    4

    4 benefit

  5. Blood levels and genes

    0

    None among the papers we read.

↓ Weaker evidence

  • Points to benefit
  • Mixed
  • No difference
  • No direction
  • Points to harm

How it fits with the other research

The short answer to “Does sauna use lower heart disease risk?”

Possibly, but not proven in trials.

Confidence: low. Based on 21 on-topic papers.

Read the full answer

Of the other 2 papers on the same step: 2 benefit. This one found benefit. It agrees with most of them.

  • Marked as a key paper in the research timeline: Early trial: sauna series lowered resting blood pressure.

Other papers on the same step

See all 21 studies on this question

How this page was made

Label

First read of the abstract
Claude Sonnet
Independent second read
Claude Haiku
Differences settled
The reviewer corrected 1 field after reading the abstract. Claude Opus 5.5.
Headline
Claude Sonnet, from the checked study record. A script checked its numbers and wording.
Numbers
Checked against the abstract by a script
“How much this study counts”
Fixed rules, the same for every study
Source check by a person
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