A Smartphone App to Promote Healthy Weight Gain, Diet, and Physical Activity During Pregnancy (HealthyMoms): Protocol for a Randomized Controlled Trial

Pontus Henriksson   ^{1, 2} , PhD ;   Johanna Sandborg   ^{1, 2} , MSc ;   Marie Blomberg   ^{3, 4} , MD, PhD ;   Christina Alexandrou   ¹ , MSc ;   Ralph Maddison   ⁵ , PhD ;   Kristin Silfvernagel   ⁶ , PhD ;   Hanna Henriksson   ² , PhD ;   Marja H Leppänen   ^{1, 7} , PhD ;   Jairo H Migueles   ⁸ , MSc ;   Linnea Widman   ⁹ , MSc ;   Kristin Thomas   ² , PhD ;   Ylva Trolle Lagerros   ^{10, 11} , MD, PhD ;   Marie Löf   ^{1, 2} , PhD

¹ Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden

² Department of Medical and Health Sciences, Linköping University, Linköping, Sweden

³ Department of Obstetrics and Gynecology, Linköping University, Linköping, Sweden

⁴ Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden

⁵ Institute for Physical Activity and Nutrition, Deakin University, Burwood, Australia

⁶ Division of Psychology, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden

⁷ Faculty of Sport and Health Sciences, University of Jyvaskyla, Jyvaskyla, Finland

⁸ Department of Physical and Sports Education, Faculty of Sport Sciences, University of Granada, Granada, Spain

⁹ Department of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden

¹⁰ Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, Solna, Sweden

¹¹ Obesity Center, Academic Specialist Center, Stockholm Health Services, Stockholm, Sweden