6ACOG Committee Opinion. Exercise during pregnancy and the postpar- tum period. No 267, Jarmary 2002. American College of Obstericians and Gynecologists [ J ]. Obstet Gyneco1,2002,77 ( 99 ) : 171 - 173.
8Hui A,Back L,Ludwig S,et al. Lifestyle intervention on diet and exer- cise reduced excessive gestational weight gain in pregnantwomen under a randomized controlled trial [ J ]. B JOG,2012,119 ( 1 ) : 70 - 77.
9Norman JE,Reynodlds RM. The consequences of obesity and exess- weight gain in pregnancy[J]. Proe Nutr Soc,2011,70(4):450-456.
10OvesenP, Rasmussen S, Kesmodel U. Effect of prepregnancy maternal overweight and obesity on pregnancy outeome[J]. Obstet Gvnecol,2011,118(2 Pt 1):305-312.
