关键词: 孕前体型, 孕期锻炼, 新生儿出生体重, 坚持锻炼

Abstract: Objective To analysis relationship between pre-pregnancy body,pregnancy exercise and neonatal birth weight and to investigate the factors affecting birth weight. Methods To use the inclusion and exclusion criteria of cohort study methodology,525 cases of pregnant women answered questionnaire survey and conducted physical examination,and obtained relevant indicators of pregnant women and newborns. Results Maternal prepregnancy under weight problems in Hebei province was 16.76%.The rate of overweight was 13.9%,the rate of obesity was 7.63%; pregnancy weight increase is insufficient and excessive incidenced rates were 8.8% and 45.7%.There were significantly higher rates of exercise influence on the birth weight of newborns(F=3.82,P=0.034).The neonatal birth weight was (3.33±0.42)kg during the pregnancy insist on exercise,and the birth weight was (3.36±0.44)kg during pregnancy did not persist in exercise(F=1.853,P>0.05).while the pre-pregnancy body was not statistically significant on the birth weight of newborns. Conclusion Exercise is good for pregnant women and newborns grow properly,reducing the incidence of huge children's.

Key words: pre-pregnancy body, pregnancy exercise, neonatal birth weight, persisting exercise