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Related Experiment Video

Updated: Mar 23, 2026

Author Spotlight: Enhancing the Offspring Health in Rats with Maternal Exercise During Pregnancy
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Exercise in Pregnancy: First Trimester Risks.

Hanne K Hegaard1, Anne S Ersbøll, Peter Damm

  • 1*Department of Obstetrics, Rigshospitalet †The Research Unit Women's and Children's Health, the Juliane Marie Centre for Women, Children and Reproduction, Rigshospitalet ‡Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.

Clinical Obstetrics and Gynecology
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Summary

Moderate exercise during pregnancy is recommended but often not followed due to fear of risks. This review found no clear conclusion on the association between first-trimester exercise and miscarriage risk.

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Area of Science:

  • Obstetrics and Gynecology
  • Reproductive Health
  • Exercise Science

Background:

  • National guidelines recommend moderate exercise during pregnancy.
  • Majority of pregnant women do not adhere to exercise recommendations.
  • Fear of exercise-related risks is a significant barrier.

Purpose of the Study:

  • To evaluate the association between first-trimester exercise and miscarriage risk.
  • To address a gap in reviews focusing on late pregnancy risks.
  • To synthesize current evidence on early pregnancy exercise safety.

Main Methods:

  • Systematic review of scientific literature.
  • Searches conducted in EMBASE and PUBMED databases.
  • Inclusion of 5 studies examining early pregnancy exercise and miscarriage.

Main Results:

  • Identified 5 studies on the topic.
  • Reported findings across studies were divergent.
  • No definitive conclusion could be drawn regarding exercise and miscarriage.

Conclusions:

  • Current evidence is inconclusive regarding the association between first-trimester exercise and miscarriage.
  • Further research is needed to clarify the risks.
  • Future studies should include participants from the pre-pregnancy period.