Active clinical trials for "Pediatric Obesity"

In this study, we will address cost barriers to participating in summer programs and hypothesize this will lead to marked improvements in children's obesogenic behaviors and a reduction in excessive, unhealthy weight gain over summer.

The main objective of this research project is to assess the impact of the timing of exercise on sensory perception, more specifically on taste and smell. Also, the investigators want to identify the optimal exercise timing scenario that maximizes the short-term anorexigenic effect of exercise (i.e. decrease in energy intake at the meal following the exercise session) in each group of teenagers. Hypothesis: exercise immediately before a meal (EX->MEAL) will be the most efficient scenario, and will show a larger impact on males individuals and people who suffer obesity. Subsequently, the investigators want to understand the impacts of exercise on lifestyle habits (i.e. sleep and sedentariness). For the realization of this research project, the investigators plan to recruit approximately 144 participants, boys and girls with normal weight/obesity, aged 12 to 17 years. Of these participants, half will be male. There are two different exercise timings (i.e. performed at 9:30 am and 11:00 am using a treadmill to test the maximal aerobic capacity) and one sedentary control condition. Participants will take part in 3 experimental visits in a random order (~5 hours/visit at LAPS-UdeM + 24h of real-life monitoring). Appetite sensations, energy intake (i.e. total and macronutrient), activity monitoring using actigraphy, hormonal (i.e. anorexigenic and orexigenic) and chemosensory (i.e. cortical response to taste and smell stimulations) response will be monitored in the laboratory and/or remotely. This project will measure acute response in laboratory and real-life settings.

Obesity and metabolic dysfunction-associated fatty liver disease (MAFLD) accelerate the appearance of arterial stiffness due to inflammatory and oxidative stress mechanisms producing increased vascular tone and increasing the risk of cardiovascular disease. This arterial stiffness can be measured through pulse wave velocity (PWV). Obesity and MAFLD have multifactorial components, high fructose diet and sedentary lifestyle are causing the onset of these diseases earlier in life such as in adolescence. L-citrulline, a non-protein amino acid, has shown positive effects on improving nitric oxide synthesis which improves endothelial function, as well as results on the metabolic profile in MAFLD. High intensity interval training (HIIT) has also shown benefits on endothelial function improving the metabolic profile of people with obesity and MAFLD with the advantage of decreasing the time required to perform the physical activity. A clinical study will be conducted with 45 adolescents (15-19 years old) with MAFLD and the participants will be divided into 3 groups to perform HIIT and supplement with citrulline or placebo for 12 weeks.

The study is a single site parallel randomized controlled study. The study will be assessing the effect of a 10% weight loss intervention vs a control group among healthy couples where the prospective mother is overweight or obese (BMI 27-45 kg/m^2) and between 18-38 years. The investigators will recruit a total of 240 healthy couples who will be randomized 1:1 to either intervention or control, stratified according to maternal pre-pregnancy BMI. The overall objective is to test whether a comprehensive pre-conceptional parental weight loss intervention effectively reduces the risk of offspring overweight and adiposity and its complications compared to a control group. The investigators hypothesize that parental weight loss intervention, initiated before conception, will facilitate lower parental insulin resistance, inflammation, body weight and adiposity, incretin responses compared to usual care. For the offspring the investigators hypothesize that the intervention will reduce adverse pregnancy outcomes with a reduction in offspring neonatal adiposity, reduced risk of being born large for gestational age (LGA) and with lower BMI z-score at 18 months.

There is evidence that obesity prevention programs show positive effects on obesity and lifestyle parameters. However, the effect of the programs delivered by different implementers is unknown, and in Mexico, the available studies present methodological limitations. The aim of this study is to evaluate the feasibility and efficacy of a school-based obesity prevention program implemented by nutrition and physical activity advanced students compared to a control group and implemented by school teachers compared to a control group of Mexican schoolchildren. This is a cluster randomized controlled trial. Schoolchildren from different public schools in Hermosillo , Sonora will be invited to participate. The schools will be randomly assigned to one option:1) the Planet Nutrition Program (PPN) delivered by advanced students, 2) PPN by school teachers, or 3) a control group. A 6-month pilot study with a follow-up at 8 months (after the summer holidays), followed by a definitive study with a follow-up at 8 and 12 months will be conducted.The intervention will consist of nutrition education sessions, physical activity, and the provision of nutrition information for parents. The BMI Z-score, body fat, other obesity, and lifestyle parameters will be evaluated at baseline and at the end of the study. A mixed effects model will be used to evaluate the differences between the groups. The investigators expect that the program could be a model of obesity prevention with a high potential for dissemination in Mexican schools.

The PARENT Trial aims to determine if the Parents Together program consisting of parent workshops, home visits and coaching calls, will result in better health outcomes for children. The program which is facilitated by a Public Health Nurse seeks to encourage healthy lifestyle, help build strong family relationships, and promote child mental health.

Overweight/obesity and inadequate sleep are prevalent, and frequently co-occurring, health risks among children, both of which are associated with serious medical and psychosocial health complications including risk for cardiovascular disease. Although the investigator's data suggest that disrupted or shortened sleep may be causally associated with increased energy intake and weight gain in children, and with self-regulation and neural response to food cues in adults, understanding of mechanisms involved in the sleep/eating association is incomplete, thereby impeding development of targeted, optimally timed intervention strategies. The proposed mechanistic clinical trial aims to assess the effects of an experimental sleep manipulation on eating-related self-regulation and its neural substrates, and on real-world eating behavior, among children with overweight/obesity, which will help guide research efforts towards the refinement of prevention and intervention strategies targeting sleep and its eating-related correlates to curb weight gain throughout development.

In Malaysia, Middle Eastern adolescents are going through changes in living status, yet few studies show that overweight and obesity are prevalent among Arabic secondary school students. There have not been any intervention studies among Middle Eastern adolescents in Malaysia. The current study aims to determine the effects of an intervention program on physical activity and healthy diet behavior among Middle Eastern adolescent students in Arabic schools in Malaysia

Healthy for Two, Healthy for You (H42/H4U) is an innovative evidence-based pregnancy/postpartum health coach intervention that is remotely-delivered (phone coaching using motivational interviewing, web-based platform, mobile phone behavioral tracking). The aim of this randomized controlled trial (RCT) is to embed H42/H4U into Johns Hopkins prenatal care clinics that serve a racially and economically diverse population, leveraging existing staff as trained health coaches to test its effectiveness and implementation. The investigators hypothesize that women in the H42/H4U arm will have lower gestational weight gain and lower rates of gestational diabetes, without an increase in low birth weight infants, and that implementation into the investigators' prenatal care clinics will be feasible and scalable.

Maternal stress is associated with children's risk for obesity controlling for socioeconomic status. The association between maternal stress and child obesity is particularly strong in Latinx families, whose children also have the highest rates of obesity in the United States. A mindful parenting program might reduce Latina mothers' psychological stress and lead to improved parenting practices and ability to create a healthier environment. The primary objective of the proposed research is to evaluate the feasibility and acceptability of a culturally-relevant intervention that integrates mindfulness-based stress reduction and mindful parenting in Latina mothers. The investigators will conduct a randomized clinical trial comparing the Calma, Conversa, y Cría (CCC) intervention to an active control condition in 50 Latina mothers of elementary-school age children. Participant satisfaction rates and qualitative interviews will provide evidence of the program's acceptability. Feasibility will be determined by examining recruitment rates, retention rates, and treatment fidelity. Completion of this project will inform the development of a full-scale efficacy trial.