Trends in Heart Rate and Heart Rate Variability During Pregnancy and the 3-Month Postpartum Period: Continuous Monitoring in a Free-living Context

Fatemeh Sarhaddi   ¹ , MSc ;   Iman Azimi   ¹ , PhD ;   Anna Axelin   ^{2, 3, 4} , PhD ;   Hannakaisa Niela-Vilen   ² , PhD ;   Pasi Liljeberg   ¹ , PhD ;   Amir M Rahmani   ^{5, 6, 7} , MBA, PhD

¹ Department of Computing, University of Turku, Turku, Finland

² Department of Nursing Science, University of Turku, Turku, Finland

³ Department of Obstetrics and Gynaecology, Turku University Hospital, Turku, Finland

⁴ Faculty of Medicine, University of Turku, Turku, Finland

⁵ Department of Computer Science, University of California, Irvine, Irvine, CA, United States

⁶ School of Nursing, University of California, Irvine, Irvine, CA, United States

⁷ Institute for Future Health, University of California, Irvine, Irvine, CA, United States