Control group
The control group as well as the intervention group were offered usual antenatal care for pregnant women with a current or a previous history of depression or anxiety; all received care at the Department of Obstetrics, Rigshospitalet. This care is free of charge and covers a coordinated program including lengthier and more frequent prenatal visits with specialised midwives and obstetricians experienced with pregnancy and mental health disorders. These visits include guidance on physical exercise for pregnant women (at least 30 min of moderate intensity per day unless physical activity is contraindicated).