{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,11]],"date-time":"2026-10-11T21:33:20Z","timestamp":1791754400847,"version":"4.3.4"},"reference-count":32,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2019,10,14]],"date-time":"2019-10-14T00:00:00Z","timestamp":1571011200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2020,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Despite the associations between delayed childbearing and poorer maternal and perinatal outcomes, little is known about these issues in regular exercisers and in women with healthy lifestyles. The aims of the present study were to: (a) compare lifestyle variables and exercise, pregnancy and birth outcomes in women \u226535\u00a0years and women &lt;35\u00a0years of age, and (b) investigate the associations between regular exercise and maternal health and newborn variables in women of advanced maternal age.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>Healthy pregnant women (\u226535\u00a0years, n\u00a0=\u00a0104 and &lt;35\u00a0years, n\u00a0=\u00a0362) were allocated to the study from Rikshospitalet, Oslo University Hospital, Norway. The participants completed a validated self\u2010administered questionnaire, the Physical Activity Pregnancy Questionnaire (PAPQ) in gestational weeks 32\u201036. Prepregnancy body weight (kg) was self\u2010reported, whereas maternal weight (kg) was measured at gestational weeks 14\u201016, 22\u201024, 30\u201032, and 36\u201038. Details of the delivery (gestational week at delivery, mode of delivery, Apgar score) and birthweight (g) were obtained from the hospital\u2019s medical records.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>More women &lt;35 than \u226535\u00a0years of age reported to have exercised prepregnancy (83.7% vs 74.0%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.04) and in the 1st trimester (71.2% vs 61.5%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.05). At gestational week 36, fewer than 50% were exercising regularly, with no group differences (<jats:italic>P<\/jats:italic>\u00a0=\u00a00.74). Current alcohol use (10.5% vs 3.3%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.02) and tobacco use (5.8% vs 1.7%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.02) were higher among women \u226535 than women &lt;35\u00a0years, whereas for healthy diet the result was reversed (&lt;35\u00a0years 67.1% and \u226535\u00a0years 80.8%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.02). There were higher rates of post\u2010term birth (13.5% vs 6.4%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.02) and induction of labor (40.5% vs 27.9%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.02) in the \u226535\u00a0years group, otherwise no other differences were observed in perinatal outcomes. In women with advanced maternal age, exercising \u22652 times weekly was associated with less pelvic girdle pain (40.0% vs 61.1%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.02), lower gestational weight gain (12.7\u00a0\u00b1\u00a04.0\u00a0kg vs 15.5\u00a0\u00b1\u00a05.5\u00a0kg, <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.01), fewer had gestational weight gain \u226516\u00a0kg (22.0% vs 51.9%, <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.01) and a newborn with macrosomia (10.0% vs 37.0%, <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.01). The results were unchanged after adjusting for recognized confounders.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The results indicate that regular exercise is associated with improvement in some of the risks of advanced maternal age.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aogs.13738","type":"journal-article","created":{"date-parts":[[2019,9,27]],"date-time":"2019-09-27T00:39:59Z","timestamp":1569544799000},"page":"240-248","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Pregnancy and advanced maternal age\u2014The associations between regular exercise and maternal and newborn health variables"],"prefix":"10.1111","volume":"99","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8153-7410","authenticated-orcid":false,"given":"Lene A. 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