Be Healthy in Pregnancy (BHIP) With Nutrition and Exercise
Pregnancy ComplicationsWeight GainExcess weight gain in pregnancy is a major problem affecting 55-75% of Canadian women who enter pregnancy overweight or obese and about 40% of women who are normal weight. Excess weight gain puts mothers at risk for health problems such as diabetes and developing or sustaining obesity after pregnancy, and puts their babies at risk of being born too large or developing related health problems. Mothers will be randomized to a structured high dairy protein diet and walking program or the usual care by their care provider. The investigators research questions are: Will a structured nutrition and exercise program in pregnancy compared to usual prenatal care increase the chance that mothers will achieve pregnancy weight gain within the current recommendations; improve health measures, in mother and infant at six months post-partum; to evaluate the benefits of a high dairy intake in pregnancy on maintenance of bone status in the mother and bone health outcomes in the child in early life (6 months); and to investigate the interactions between genes associated with bone health and high dairy diet supplementation on bone status in mothers during pregnancy, and bone health in mothers post-delivery and children to 6 months of age. Mothers' weight, physical activity and adherence to the nutrition plan will be assessed until birth and at follow-up with their infants at 6 months after birth. The research team will ensure new information is quickly transferred to programs to assist women to have healthier pregnancies.
Effect of Exercise on Prevention of Weight Gain
Weight LossThe purpose of this study is to examine the dose-response of exercise on prevention of weight gain in overweight adults.
Weight Gain Prevention
Weight GainThe specific aim of the proposed project is to test two separate self-regulation interventions to prevent weight gain in young adults, one based on making sustained small changes in behavior to prevent weight gain and the other on making periodic larger behavior changes resulting in weight loss.
Testing the Influence of Different Sugary Drink Warning Label Designs
ObesityWeight Gain1 moreThe aim of this study is to compare different sugary drink labels to see which most influence knowledge, beliefs, purchase intentions and choices. Parents of children ages 6-11 will shop in a virtual convenience store after being randomized to 1 of 4 conditions: 1) calorie labels; 2) text warning labels; 3) graphic sugar warning labels; or 4) graphic health warning. This study will provide data comparing the influence of sugary drink text warning labels and two kinds of graphic warning labels.
Study of a Randomized Intervention Designed to Increase Exercise in Pregnancy
Gestational Weight GainThis project aims to determine whether a mobile-health (m-health) tool, accessible via smartphone or website, intervention for overweight and obese pregnant women improves physical activity, gestational weight gain, quality of life, stress and depression during pregnancy. This study will examine factors associated with using the m-health tool and the most highly utilized features of the tool, with a goal of understanding how it can be used and improved in future behavior change interventions. The hypothesis is that compared with usual care, an m-health intervention will result in increased minutes of moderate-to-vigorous physical activity and increased knowledge of the IOM GWG guidelines. The study design is a small pilot randomized trial to assess feasibility. This study will recruit and follow 70 overweight and obese pregnant women during the first trimester of pregnancy from Kaiser San Francisco and other facilities. The m-health intervention has the advantage of enabling overweight and obese women to monitor and improve their health behaviors without impacting the work flow of clinical care. Depending on the results of this initial evaluation, the clinical implications may include its implementation at the health system level and/or being evaluated and improved in the future by a larger investigation in a randomized controlled trial. The study team will assess adherence and acceptability of the intervention to inform future studies.
Metabolic Tracking and Weight Gain During Pregnancy
Gestational Weight GainIn this study, the investigators aimed to have pregnant women use a hand-held device to track increases in daily caloric needs during pregnancy. Weight gain was assessed over time with the goal of reducing excessive gestational weight gain relative to a group of pregnant women who received standard prenatal care.
Interventions to Reduce Excess Weight Gain in Pregnancy
Overweight and ObesityPregnancyThe study will use a comprehensive behavioral intervention adapted for pregnant women to change dietary intake, eating behavior and physical activity. The central hypothesis of this study is that the intervention will reduce excess gestational weight gain and achieve clinical and metabolic benefits in obese and overweight pregnant women and their infants over the first year of life.
Effect of Ready to Use Therapeutic Food (RUTF) Supplement After an Episode of Malaria Falciparum...
Weight LossWeight Gain2 moreThe primary objective of this study is to determine to what extent provision with RUTF will promote catch up growth in children following an acute uncomplicated episode of P. falciparum malaria.
Gut Microbiome and Weight Gain After Smoking Cessation
Smoking CessationWeight GainInvestigating the effect of smoking and smoking cessation on the intestinal microbial composition and function. The investigators wish to determine whether the alteration in gut microbiome drives the significant weight gain seen in humans after smoking cessation, and find the mechanism by which the gut microbiome contributes to this phenomenon.
Pregnancy Tracking Pilot
Gestational Weight GainThis pilot study will examine perceptions about daily weighing for pregnant women with overweight or obesity by testing the feasibility, acceptability, and preliminary efficacy of daily weighing for reducing excess gestational weight gain (GWG) within the context of a low intensity, digital-health based intervention delivered remotely with electronic feedback to participants.