Evidence map›Paper›PMID 40303383›Full record

ArticleBMJ open sport & exercise medicine2025

Is fetal well-being jeopardised during high-intensity interval training?

Emilie Mass Dalhaug, Birgitte Sanda, Kari Bø, Wendy J Brown, Kaia Øvstedal, Sofia Brevik-Persson, Lene A H Haakstad

Abstract read
In one paragraph

Article in BMJ open sport & exercise medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Emilie Mass DalhaugNorwegian School of Sport Sciences, Department of Sports Medicine, Oslo, Norway.ORCID 0000-0002-3892-1628
Birgitte SandaNorwegian School of Sport Sciences, Department of Sports Medicine, Oslo, Norway.
Kari BøNorwegian School of Sport Sciences, Department of Sports Medicine, Oslo, Norway.
Wendy J BrownBond University, Faculty of Health Sciences and Medicine, Gold Coast, Queensland, Australia.ORCID 0000-0001-9093-4509
Kaia ØvstedalNorwegian School of Sport Sciences, Department of Sports Medicine, Oslo, Norway.
Sofia Brevik-PerssonNorwegian School of Sport Sciences, Department of Sports Medicine, Oslo, Norway.
Lene A H HaakstadNorwegian School of Sport Sciences, Department of Sports Medicine, Oslo, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

abstractObjectives: To explore the acute effects of high-intensity interval training on fetal heart rate (FHR) and uteroplacental blood flow. Method: Elite (n=10) and recreational athletes (n=50) participated in an experimental laboratory study involving 5×5 min intervals of high-intensity exercise on both a treadmill and cycle ergometer, with a 4 min pause between intervals for measurement of FHR and uteroplacental blood flow. Target intensity was 17 on Borg's rating of perceived exertion (RPE) scale and 90% of estimated maximal maternal heart rate (MHR Results: Mean exercise intensity was 16.4 (SD 1.0) RPE and 89.4 (SD 3.8) % of MHR Conclusion: Despite cases of fetal bradycardia and tachycardia, our results indicate that highly active women can engage in multiple intervals of high-intensity interval training without apparent harm to fetal well-being.

Indexed as

AthleteExercisePregnancy

Identifiers

PMID40303383
PMCPMC12039009

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.