No. 367-2019 Canadian Guideline for Physical Activity throughout Pregnancy.
Level 1 - systematic review of randomized trials
Evidence-based clinical practice guideline informed by systematic literature searches across multiple databases and GRADE methodology.
PubMed 30297272 · doi:10.1016/j.jogc.2018.07.001
What was done
A consensus panel developed clinical practice guidelines for prenatal physical activity following the AGREE II instrument and GRADE methodology. Systematic searches were conducted across 12 databases (including Medline, EMBASE, Cochrane, and Web of Science) from inception to January 6, 2017. Eligible records included primary human studies of any design (excluding case studies) published in English, Spanish, or French that assessed maternal physical activity in relation to maternal, fetal, or neonatal morbidity and mortality. Feedback was solicited from end-users, clinicians, researchers, and pregnant/postpartum women.
What was found
The abstract reports no numerical effect estimates or risk ratios. Directionally, prenatal physical activity was associated with fewer newborn complications (such as large for gestational age) and reduced maternal risks, including preeclampsia, gestational hypertension, gestational diabetes, Caesarean delivery, instrumental delivery, urinary incontinence, excessive gestational weight gain, and depressive symptoms, alongside improved blood glucose and reduced lumbopelvic pain. Physical activity was not associated with miscarriage, stillbirth, neonatal death, preterm birth, rupture of membranes, low birth weight, or birth defects.
Why it matters
This guideline clarifies that physical activity should be recommended as safe, front-line preventive care for pregnant women without contraindications, providing reassurance against historical concerns regarding miscarriage or preterm delivery.
Limits
The abstract provides no numerical data, pooled odds ratios, or study counts. No evidence was identified on the safety or additional benefit of exercising significantly above standard recommendations. The search was limited to three languages, and recommendations rely partly on expert consensus for resource and feasibility assessments.
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