Dietz, Pavel The influence of physical activity during pregnancy on maternal, fetal or infant heart rate variability: a systematic review. [electronic resource] - BMC pregnancy and childbirth 10 2016 - 326 p. digital Publication Type: Journal Article; Review; Systematic Review ISSN: 1471-2393 Standard No.: 10.1186/s12884-016-1121-7 doi Subjects--Topical Terms: Exercise--physiologyFemaleHeart RateHeart Rate, FetalHumansInfantPregnancy--physiology