| Popis: |
BACKGROUND Overweight and obese women’s excessive gestational weight gain (GWG) may be a health risk for both the mother and the fetus; excessive GWG leads to the retention of weight postpartum and thus obesity. Given the overwhelming number of existing pregnancy-related applications (apps), we lack only a few methodological guidelines for integrating theory, evidence and previously validated apps to help overweight and obese women manage their GWG during pregnancy. OBJECTIVE This two-phase study aimed to develop the MyHealthyWeight (MHW) app based on social-cognitive theory (SCT) and evaluate its effectiveness for overweight and obese women in helping prevent excessive GWG by enhancing adherence to optimal GWG goals and healthy behavior during pregnancy. METHODS First, we constructed and developed the MHW app based on SCT theory, and we later employed a mixed-method study to evaluate the effects of the app on overweight and obese pregnant women. RESULTS All participating overweight and obese pregnant women (100%) achieved their optimal GWG through increased self-efficacy and physical activity. Their total and moderate-intensity physical activity expenditures improved, while their sedentary and light-intensity levels of physical activity decreased. CONCLUSIONS This theory-based MHW app for weight management was greatly valued by the pregnant users. Its usefulness for health-care professionals in assisting overweight and obese pregnant women in preventing excessive GWG by promoting healthy behavior, in particular through physical exercise and a healthy diet, during pregnancy was also confirmed. CLINICALTRIAL NCT04553718 |
