Borodulin Katja M, Evenson Kelly R, Wen Fang, Herring Amy H, Benson Aimee M
Department of Epidemiology, School of Public Health, University of North Carolina at Chapel Hill, NC 27514, USA.
Med Sci Sports Exerc. 2008 Nov;40(11):1901-8. doi: 10.1249/MSS.0b013e31817f1957.
The aim of the study was to describe the mode, frequency, duration, and intensity of physical activity among pregnant women, to explore whether these women reached the recommended levels of activity, and to explore how these patterns changed during pregnancy.
This study, as part of the third phase of the Pregnancy, Infection, and Nutrition Study, investigated physical activity among 1482 pregnant women. A recall of the different modes, frequency, duration, and intensity of physical activity during the past week was assessed in two telephone interviews at 17-22 and 27-30 wk of gestation.
Most women reported some type of physical activity during both periods. Child and adult care giving, indoor household, and recreational activities constituted the largest proportion of total reported activity. The overall physical activity level decreased during pregnancy, particularly in care giving, outdoor household, and recreational activity. Women who were active during the second and the third trimesters reported higher levels of activity in all modes of activity than those who became active or inactive during pregnancy. The majority did not reach the recommended level of physical activity.
These data suggest that self-reported physical activity decreased from the second to the third trimesters, and only a small proportion reached the recommended level of activity during pregnancy. Further research is needed to explore if physical activity rebounds during the postpartum period.
本研究旨在描述孕妇身体活动的方式、频率、持续时间和强度，探讨这些孕妇是否达到推荐的活动水平，并探究这些模式在孕期如何变化。
作为孕期、感染与营养研究第三阶段的一部分，本研究调查了1482名孕妇的身体活动情况。在妊娠17 - 22周和27 - 30周时通过两次电话访谈评估了过去一周内身体活动的不同方式、频率、持续时间和强度。
大多数女性在两个时间段均报告了某种类型的身体活动。照顾儿童和成人、室内家务及娱乐活动占报告的总活动的最大比例。孕期总体身体活动水平下降，尤其是在照顾、户外家务和娱乐活动方面。在孕中期和孕晚期活跃的女性在所有活动模式中的活动水平均高于孕期开始活跃或不再活跃的女性。大多数人未达到推荐的身体活动水平。
这些数据表明，自我报告的身体活动从孕中期到孕晚期有所下降，孕期只有一小部分人达到推荐的活动水平。需要进一步研究以探究产后身体活动是否会反弹。
