Evidence map›Paper›PMID 31391016›Full record

SynthesisBMC pregnancy and childbirth2019

The effects of vigorous intensity exercise in the third trimester of pregnancy: a systematic review and meta-analysis.

Kassia S Beetham, Courtney Giles, Michael Noetel, Vicki Clifton, Jacqueline C Jones, Geraldine Naughton

Open access · goldAbstract readMeta-AnalysisSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in BMC pregnancy and childbirth, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 6 pooled it
12.0field-weighted citation impact, top 1% of its field
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

55 citing papers in PubMed, 6 syntheses or guidelines pooled it, 133 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Trial
  8. Trial
  9. The Influence of Maternal Aerobic Exercise, Blood DHA and EPA Concentrations on Maternal Lipid Profiles.International journal of environmental research and public health · 2022
    Trial
  10. Trial
  11. Article
  12. Observational
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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

6 authors at 4 institutions in 1 country.

Kassia S BeethamSchool of Behavioural and Health Sciences, Australian Catholic University, 1100 Nudgee Road, Banyo, Brisbane, Queensland, 4014, Australia. kassia.beetham@acu.edu.au.ORCID http://orcid.org/0000-0003-4657-7668
Courtney GilesSchool of Behavioural and Health Sciences, Australian Catholic University, 1100 Nudgee Road, Banyo, Brisbane, Queensland, 4014, Australia.
Michael NoetelSchool of Behavioural and Health Sciences, Australian Catholic University, 1100 Nudgee Road, Banyo, Brisbane, Queensland, 4014, Australia.
Vicki CliftonPregnancy and Development, Mater Research Institute-University of Queensland, Translational Research Institute, South Brisbane, Queensland, Australia.
Jacqueline C JonesObstetrics and Gynaecology Department, Royal North Shore Hospital, Sydney, New South Wales, Australia.
Geraldine NaughtonDepartment of Educational Studies, Macquarie University, Sydney, New South Wales, Australia.
Australian Catholic University · AURoyal North Shore Hospital · AUSwinburne University of Technology · AUTranslational Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFetal growth is dependent upon utero-placental vascular supply of oxygen and nutrients from the mother and has been proposed to be compromised by vigorous intensity exercise in the third trimester. The aim of this systematic review was to investigate the effects of vigorous intensity exercise performed throughout pregnancy, on infant and maternal outcomes.

methodsElectronic searching of the PubMed, Medline, EMBASE, Cochrane Library, Web of Science and CINAHL databases was used to conduct the search up to November 2018. Study designs included in the systematic review were randomised control trials, quasi-experimental studies, cohort studies and case-control studies. The studies were required to include an intervention or report of pregnant women performing vigorous exercise during gestation, with a comparator group of either lower intensity exercise or standard care.

resultsTen cohort studies (n = 32,080) and five randomized control trials (n = 623) were included in the systematic review (n = 15), with 13 studies included in the meta-analysis. No significant difference existed in birthweight for infants of mothers who engaged in vigorous physical activity and those who lacked this exposure (mean difference = 8.06 g, n = 8006). Moreover, no significant increase existed in risk of small for gestational age (risk ratio = 0.15, n = 4504), risk of low birth weight (< 2500 g) (risk ratio = 0.44, n = 2454) or maternal weight gain (mean difference = - 0.46 kg, n = 1834). Women who engaged in vigorous physical activity had a small but significant increase in length of gestational age before delivery (mean difference = 0.21 weeks, n = 4281) and a small but significantly reduced risk of prematurity (risk ratio = - 0.20, n = 3025).

conclusionsFindings from this meta-analysis indicate that vigorous intensity exercise completed into the third trimester appears to be safe for most healthy pregnancies. Further research is needed on the effects of vigorous intensity exercise in the first and second trimester, and of exercise intensity exceeding 90% of maximum heart rate.

trial registrationPROSPERO trial registration CRD42018102109 .

Indexed as

ExercisePregnancy Trimester, ThirdFemaleFetal Growth RetardationGestational Weight GainHumansInfant, Low Birth WeightInfant, NewbornInfant, Small for Gestational AgePregnancyPremature BirthProtective FactorsRisk FactorsAntenatalGestationHigh intensityInfantIntrauterine growth restrictionMaternal weight gainPhysical activityPrenatalSmall for gestational age

Identifiers

PMID31391016
PMCPMC6686535
OpenAlexW2966050066

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.