Objectives The aim of this article is to provide a comprehensive literature review, gathering the strongest evidence about the risks and benefits and the prescription of physical exercise during pregnancy. Content Regular physical exercise during pregnancy is associated with numerous benefits. In general women are not adequately advised on this matter. Along with their concerns regarding the potential associated risks, it contributes to the abandonment or refusal to start exercising during pregnancy. A systematic review was conducted in MEDLINE including articles considered to have the highest level of scientific evidence. Fifty-seven articles, including 32 meta-analysis, 9 systematic reviews and 16 randomized controlled trials were included in the final literature review. Summary Exercise can help preventing relevant pregnancy related disorders, such as gestational diabetes, excessive gestational weight gain, hypertensive disorders, urinary incontinence, fetal macrosomia, lumbopelvic pain, anxiety and prenatal depression. Exercise is not related with an increased risk of maternal or perinatal adverse outcomes. Compliance with current guidelines is sufficient to achieve the main benefits, and exercise type and intensity should be based on woman’s previous fitness level. Outlook Exercise in pregnancy is safe for both mother and fetus, contributing to prevent pregnancy related disorders. Exercise type and intensity should be adapted to woman’s previous fitness level, medical history and characteristics of the ongoing pregnancy.

中文翻译：

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孕期体育锻炼：益处、风险和处方

目的 本文的目的是提供全面的文献综述，收集关于孕期体育锻炼的风险和益处以及处方的最有力证据。内容 怀孕期间的定期体育锻炼与许多好处有关。一般来说，女性在这件事上没有得到充分的建议。除了他们对潜在相关风险的担忧外，它还导致怀孕期间放弃或拒绝开始锻炼。进行了系统评价医疗线包括被认为具有最高科学证据水平的文章。最终文献综述纳入57篇文章，包括32篇荟萃分析、9篇系统评价和16篇随机对照试验。总结 运动可以帮助预防相关的妊娠相关疾病，例如妊娠糖尿病、妊娠期体重过度增加、高血压疾病、尿失禁、巨大儿、腰盆腔疼痛、焦虑和产前抑郁。运动与产妇或围产期不良结局风险增加无关。遵守现行指南足以实现主要益处，运动类型和强度应基于女性以前的健康水平。展望 孕期锻炼对母亲和胎儿都是安全的，有助于预防与妊娠相关的疾病。