Table 3.

Future directions in research

Study type	Variables to be captured
Observational cohort study (pregnant elite and competitive amateur athletes)	Exercise activity in daily live (wearables)
	Training activities (wearables)
	Fetal heart rate (non-invasive, wireless monitoring systems, wearables)
Interventional study	Fetal heart rate monitoring (non-invasive, wireless monitoring systems, wearables) with live feedback function (in case of fetal heart rate deceleration)
	Maternal heart rate in daily live and during activity (wearables)
	Uterine contractions (non-invasive, wireless monitoring systems, wearables)