Background: Physical activity has been inconsistently associated with risk of preterm birth, and the strength of the association and the shape of the dose-response relationship needs clarification. Objectives: To conduct a systematic review and dose-response meta-analysis to clarify the associ...

Background: Maternal physical activity (PA) during pregnancy could affect offspring's neurodevelopment. However, studies in humans in early childhood are scarce and show inconsistent results. We aimed to review the literature on the association between physical activity during pregnancy and offsp...

Background: Overweight/obesity is associated with the risk of delivery- and newborn-related complications in pregnancy. Interventions such as exercise or metformin could reduce the risk of these complications. Objective: To estimate and compare the effects of different types of exercise interv...

目的:采用meta分析的方法研究运动和饮食干预对超重及肥胖妇女妊娠期糖尿病（GDM）及妊娠结局的影响。方法:检索The Cochrane Library、PubMed、EMbase、CNKI、万方数据库从建库至2019年5月发表的有关运动和饮食干预对超重及肥胖妇女GDM及妊娠结局影响的随机对照试验,两名研究者对文献的质量进行严格评价并进行资料提取,对符合标准的随机对照研究采用Revman 5.3软件进行meta分析。结果:最终纳入10篇文章,包括5436名研究对象,与常规干预相比较,运动饮食干预不会减少超重及肥胖妇女GDM发生率（RR=0.98,95%CI 0.87～1.11）与剖宫产率...

目的:应用Meta分析评价孕期高强度运动对妊娠结局的影响。方法:计算机检索Cochrane图书馆、Pub Med、Embase数据库、中国生物医学(CBM)、中国知网(CNKI)、万方数据库以及维普期刊资源整合服务平台,收集建库至2020年11月20日有关孕期高强度运动的随机对照研究、队列研究,采用Rev Man5.3对所得资料进行Meta分析。结果:共纳入17项研究,包括31747例孕妇,其中随机对照研究7项,队列研究10项。Meta分析显示,高强度运动能够有效降低巨大儿的出生率(OR=0.49,95%CI为0.25－0.94,P=0.03),且不增加低出生体质量儿的出生率(OR=1....

目的:采用系统评价的方法研究运动干预对妊娠期糖尿病患者血糖和妊娠结局影响的效果。方法:应用RevMan5.3对纳入的12篇文献,2 074名研究对象的空腹血糖、餐后2h血糖、巨大儿、早产、剖腹产、婴儿长度、子痫前期症状等指标进行Meta分析;依照排除与纳入标准,完成文献纳入和数据提取,采用Cochrane偏倚风险评估工具对文献质量进行评估分析。结果:（1）运动具有显著降低妊娠期糖尿病患者餐后2H血糖水平的作用,[MD=-1.33,95%CI（-2,-0.66）,P<0.000 1];（2）运动可以显著减少妊娠期糖尿病孕妇巨大儿发生率[OR=0.5,95%C（0.33,0.77）,P=0....

OBJECTIVE - Gestational diabetes mellitus (GDM) is one of the most common complications of pregnancy and is associated with a substantially elevated risk of adverse health outcomes for both mothers and offspring. Physical activity may contribute to the prevention of GDM and thus is crucial for d...

BACKGROUND: Weight gains in pregnancy within the recommended guidelines are associated with healthy fetal and maternal outcomes; higher weight gains are associated with fetal macrosomia. This study was a systemic review of randomized controlled trials on the effect of aerobic training on maternal...

Stillbirth has a great impact on contemporary and future generations. Increasing evidence show that ambient air pollution exposure is associated with stillbirth. However, previous studies showed inconsistent findings. To clarify the effect of maternal air pollution exposure on stillbirth, we sear...

Background: Particulate matter <2.5 micrometer (PM2.5) is associated with adverse perinatal outcomes, but the impact on disease burden mediated by this pathway has not previously been included in the Global Burden of Disease (GBD), Mortality, Injuries, and Risk Factors studies. We estimated the g...