Acta obstetricia et gynecologica Scandinavica
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Acta Obstet Gynecol Scand · Mar 2017
Review Meta AnalysisExercise during pregnancy and risk of preterm birth in overweight and obese women: a systematic review and meta-analysis of randomized controlled trials.
The incidence of overweight and obesity in pregnancy has risen significantly in the last decades. Overweight and obesity have been shown to increase the risk for some adverse obstetric outcomes. Lifestyle interventions, such as diet, physical activity and behavior changes, may reduce these risks by promoting weight loss and/or preventing excessive weight gain. The possible impact of exercise on the risk of preterm birth (PTB) in overweight or obese women is controversial. Therefore, the aim of our study was to evaluate the effect of exercise on the risk of PTB in overweight or obese pregnant women. ⋯ Overweight and obese women with singleton pregnancy can be counseled that, compared with being more sedentary, aerobic exercise for about 30-60 min three to seven times per week during pregnancy is associated with a reduction in the incidence of PTB. Aerobic exercise in overweight and obese pregnant women is also associated with a significant prevention of gestational diabetes mellitus, and should therefore be encouraged.
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Acta Obstet Gynecol Scand · Mar 2017
Why babies die in unplanned out-of-institution births: an enquiry into perinatal deaths in Norway 1999-2013.
The aims were to describe causes of death associated with unplanned out-of-institution births, and to study whether they could be prevented. ⋯ Infections, neonatal, and placental causes accounted for almost two-thirds of perinatal mortality associated with unplanned out-of-institution births in Norway. Sub-optimal maternal use of available care was found in more than one-fifth of cases.