title: Physical activity by pregnant women and outcomes for newborns: a systematic review.
abstract: A systematic review was carried out aiming at analyzing daily physical activity during pregnancy and the outcomes of birth weight, prematurity, and intrauterine growth restriction. Of 52 articles indexed in Medline, 22 that showed better methodological quality were included. Among the 22 articles analyzed, only two did not detect a significant association between physical activity and the outcomes studied. There was large variation between the indicators of maternal physical activity, which included occupational, household, recreational and, all or some, locomotive activities. Among ten articles that measured total daily physical activity, only one article did not find any association. The results support the hypothesis that both excessive and insufficient physical activity impact negatively on pregnancy outcomes.
authors.affiliation: Departamento de Pedagogia do Movimento do Corpo Humano, Escola de Educação Física e Esporte, Universidade de São Paulo, Av. Prof. Mello Moraes 65, São Paulo, SP, Brazil. mytakito@usp.br
authors.forename: Monica Yuri
authors.initials: MY
authors.lastname: Takito
authors.forename: Maria Helena D'Aquino
authors.initials: MH
authors.lastname: Benício
authors.forename: Lenycia de Cassya Lopes
authors.initials: Lde C
authors.lastname: Neri
mesh_terms: D001724:Birth Weight / Q000502:physiology; D005260:Female; D005317:Fetal Growth Retardation / Q000209:etiology; D006801:Humans; D007231:Infant, Newborn; D009043:Motor Activity / Q000502:physiology*; D011247:Pregnancy; D011256:Pregnancy Outcome; D047928:Premature Birth / Q000209:etiology; D012307:Risk Factors