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Aerobic exercise for women during pregnancy

Evidence Summaries

Level of Evidence = B

Regular aerobic exercise during pregnancy appears to improve (or maintain) physical fitness. Available data are insufficient to infer important risks or benefits for the mother or infant.

A Cochrane review 1 included 14 studies involving a total of 1,014 women. Of the 9 studies reporting on physical fitness, 6 reported significant improvement in physical fitness in the exercise group, although inconsistencies in summary statistics and measures used to assess fitness prevented quantitative pooling of results. 11 studies reported on pregnancy outcomes. A pooled increased risk of preterm birth (RR 1.82, 95% CI 0.35 to 9.57) with exercise, albeit statistically nonsignificant, does not cohere with the absence of effect on mean gestational age (MD +0.10, 95% CI –0.11 to +0.30 weeks), while the results bearing on growth of the fetus are inconsistent. One small trial reported that physically fit women who increased the duration of exercise bouts in early pregnancy and then reduced that duration in later pregnancy gave birth to larger infants with larger placentas.

Comment: The quality of evidence is downgraded by imprecise results (limited study size for each comparison).

References

1. Kramer MS, McDonald SW. Aerobic exercise for women during pregnancy. Cochrane Database Syst Rev 2006 Jul 19;3:CD000180 [Review content assessed as up-to-date: 30 January 2010].  [PMID:16855953]


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TY - ELEC T1 - Aerobic exercise for women during pregnancy ID - 456202 BT - Evidence-Based Medicine Guidelines UR - https://evidence.unboundmedicine.com/evidence/view/EBMG/456202/all/Aerobic_exercise_for_women_during_pregnancy PB - Duodecim Medical Publications Limited DB - Evidence Central DP - Unbound Medicine ER -