Evidence map›Paper›PMID 27127718›Full record

ArticleAJP reports2016

Physical Activity Volumes during Pregnancy: A Systematic Review and Meta-Analysis of Observational Studies Assessing the Association with Infant's Birth Weight.

Michèle Bisson, Joëlle Lavoie-Guénette, Angelo Tremblay, Isabelle Marc

Abstract readCase Reports
In one paragraph

Article in AJP reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
–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

19 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Observational
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  8. Review
  9. Observational
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  11. Impact of Physical Activity of Pregnant Women on Obstetric Outcomes.International journal of environmental research and public health · 2022
    Article
  12. Article
  13. Relationships between Objectively Measured Sedentary Behavior during Pregnancy and Infant Birthweight.International journal of environmental research and public health · 2021
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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

4 authors.

Michèle BissonDepartment of Pediatrics, Centre Hospitalier Universitaire de Québec (CHU de Québec), Université Laval, Quebec, Canada; Department of Kinesiology, Faculty of Medicine, Université Laval, Quebec, Canada.
Joëlle Lavoie-GuénetteDepartment of Pediatrics, Centre Hospitalier Universitaire de Québec (CHU de Québec), Université Laval, Quebec, Canada.
Angelo TremblayDepartment of Kinesiology, Faculty of Medicine, Université Laval, Quebec, Canada.
Isabelle MarcDepartment of Pediatrics, Centre Hospitalier Universitaire de Québec (CHU de Québec), Université Laval, Quebec, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective This study aims to examine the association between different maternal physical activity exposures during pregnancy and infant's birth weight, body composition, and risk of inadequate weight. Methods Two reviewers (M.B. and J.L.G.) identified observational studies reporting total or leisure time activity during pregnancy and birth weight outcomes. Pooled analyses were performed to summarize the risk associated with high or moderate volumes of physical activity on birth weight. Results A total of 54 studies among 4,080 reported the association between physical activity and birth weight (37 studies) or risks of small or large birth weight. The association between physical activity and birth weight was evaluated by physical activity levels (low, moderate, or high). Despite heterogeneity, pooled results (23 studies) suggested that moderate levels of activity are associated with an increased birth weight (mean difference: 61.5 g, 95% confidence interval [CI]: 16.6, 106.5, 15 studies), while high levels were associated with lower birth weight (mean difference: -69.9 g, 95% CI: -114.8, -25.0, 15 studies). Data were insufficient to provide robust estimates for other outcomes. Conclusions The results of observational studies suggest an inverted u-shaped association between physical activity and birth weight, despite methodological variability. These results could help refining physical activity guidelines for pregnancy and provide guidance for future research.

Indexed as

birth weightbody compositionphysical activitypregnancysystematic review

Identifiers

PMID27127718
PMCPMC4848034

What OpenQuestion holds

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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.