Study reveals how heat and exercise impact pregnant women and fetuses

NCT ID NCT07326176

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how heat and physical activity affect the health of pregnant women and their unborn babies. Twenty-four healthy pregnant women completed four 3-hour sessions in a controlled room, either at a comfortable 20°C or a warm 30°C, while doing light or moderate treadmill walking. Researchers measured the mother's body temperature, heart rate, and the baby's heart rate and blood flow using ultrasound. The goal was to understand the body's response to heat and work during late pregnancy.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to
If successful, this research could help create guidelines to protect pregnant women and their babies from heat stress during work or hot weather.
What could go wrong
This is a small, completed observational study with only 24 participants. It does not test a treatment, so it cannot directly lead to a new therapy or cure.

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Conditions

The condition(s) this trial relates to.

Heat Stress Disorders

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Dept. of Physical Education and Sport Science, University of Thessaly

    Trikala, Thessaly, 42100, Greece