- Exercise in normal-weight pregnant women may reduce risk for gestational diabetes mellitus (GDM).
Why this matters
- Women with GDM are at risk for fetal demise, preterm birth, fetal macrosomia, polyhydramnios, and cesarean delivery (CD).
- GDM may affect offspring because of transient and long-standing abnormalities in carbohydrate metabolism.
- Exercise in normal-weight women during pregnancy may reduce risk of pregnancy complications.
- Exercise during pregnancy reduced the occurrence of GDM in normal-weight women (using 2 different diagnostic criteria: risk ratio [RR], 0.58; P=.01; and RR, 0.60; P=.04).
- Exercise was associated with decreased maternal weight gain (P<.01>
- Exercise had no effect on gestational age at birth (P=.29), birth weight (P=.28), or CD risk (P=.21).
- Systematic review and meta-analysis, studies published 1994-2017.
- 8 randomized controlled trials were included in the final analysis (n=2981 pregnant women).
- Funding: None disclosed.
- Diagnostic criteria for GDM varied among the 8 studies.
- Intervention adherence may have varied because of differences in socioeconomic factors.
- Method for effectively monitoring exercise rates is needed.