View clinical trials related to Overweight.
Filter by:Developing more efficient and cost-effective prevention strategies to slow down the worldwide epidemic of obesity and chronic metabolic disease has become a public health imperative. Our previous results in humans demonstrate that lower breast milk betaine levels were associated with faster infant postnatal growth, a strong and potentially modifiable risk factor of future obesity. Betaine is a trimethylated derivative of glycine, which is present in multiple foods and occurs naturally in breast milk. In this study, we will perform a double-blind randomized placebo-controlled pilot clinical study, in which maternal diet will be supplemented with betaine for 3 months during breastfeeding; infant's growth and adiposity will be monitored until 12 months of age, and breast milk composition and gut microbiota analyzed.
Today's children are increasingly facing metabolic-related health issues, among which the worldwide prevalence of overweight and obesity is rising at an alarming pace. Childhood obesity is associated with the early onset of chronic diseases including an emergence of prediabetes and diabetes mellitus type 2. The decline of insulin sensitivity already years before puberty, exposes children to long- term complications prior the appearance of clinical symptoms and time of diagnosis. The shortened life expectancy and large economic burden imposed underlines the need for the identification of metabotypes at risk at an early stage. One's genetics, microbial gut composition and every aspect of the environment in which children are raised have been implicated in diet-related obesity rendering metabolomics a very powerful tool towards precision medicine. Yet, the excellence of stool in reflecting the intertwining thereof is completely unexplored for pediatric purposes, whereas blood sampling causing pain and stress for child and parent only captures a narrow fraction of the metabolome. As such, rectal sampling using a customised medical swab for optimal gut metabolome coverage is envisioned. Ambient laser desorption ionisation will be hyphenated to high-resolution mass spectrometry-based metabolomics to provide a framework for elucidating predictive and/or prognostic biomarkers for ever-increasing pediatric metabolic diseases such as obesity and (pre)diabetes.
Oats are a commonly consumed source of viscous soluble fibre, which has an established role in cardiovascular disease risk management including in cholesterol and glycemic control. Oat beta-glucan is recognized for its cholesterol-lowering effects with approved health claims in Canada, US and Europe. However, the efficacy of oat beta-glucan on glycemic control is not clear. We propose to conduct a systematic review and meta-analysis to explore the efficacy of whole grain oats and oat beta-glucan on markers of glycemic control in people with, without or at risk for diabetes.
The purpose of this study is to investigate the effects of green tea extract (GTE) on fat oxidation, body composition and exercise performance in overweight individuals. The study will be conducted under laboratory conditions following an 8 week supplemental period. Participants will be required to attend the laboratory for a pre-screening/familiarisation trial followed by assessments at week 0 (baseline), week 2, 4 and 8. Across the intervention, participants will maintain habitual dietary intake and follow a prescribed exercise programme. Additionally participants will be randomised to either a placebo, green tea extract or GTE with antioxidant supplementation. It is hypothesised that the addition of antioxidants with GTE will enhance fat oxidation in overweight individuals more than GTE or placebo. It is further hypothesised that such improvements in fat oxidation due to GTE will lead to improvements in both body composition variables and submaximal exercise performance (metabolic efficiency) in overweight, but otherwise healthy persons.
This online pilot weight loss study will explore the feasibility of recruiting individuals to an established online behavioral weight loss program of varying duration (4 months vs. 6 months), We will compare 6-month weight losses between the two programs of shorter and longer duration, respectively, and obtain data to characterize weight maintenance experiences and retention. Both groups will receive the same intervention; the only difference is the number of weeks the group will meet. Both groups will complete follow ups at 2, 4, 6, and 12 months (12 months after the study begins).
Black adolescents who are pregnant represent a high-risk and understudied perinatal population in health research. Adolescent pregnancy (<20 years) is disproportionately prevalent among Blacks compared with Whites and is a prominent risk factor for obesity. Fortunately, metabolic consequences of increasing physical activity coupled with minimal sedentary time can mitigate biological imperils and behavioral interventions targeting perinatal populations have demonstrated efficacy for this approach. Intervention studies to promote physical activity and reduce sedentarism among Black, perinatal adolescents in disadvantaged, rural settings may be a promising strategy to prevent obesity and reduce disparities. In the proposed study, investigators will assess the feasibility and acceptability of #BabyLetsMove, a mobile health intervention targeting three behavioral goals: (1) limit TV time to less than 2 hours a day (sedentary behavior); (2) take 10,000 steps or more per day (physical activity); and (3) do 20 minutes or more of structured activity like prenatal yoga or dance videos per day (exercise). In the #BabyLetsMove feasibility trial investigators aim to conduct a single-arm, 4-week pilot with 20 Black adolescents (15- to 19-years) enrolled in Mississippi's Supplemental Nutritional Program for Women, Infants and Children (WIC) to test the intervention's feasibility and acceptability. Participants will receive one text message per day for 4-weeks targeting behavior change strategies and two health coaching sessions via mobile phone; an introduction session in week one and a problem-solving session in week three. Investigators will also use qualitative interviewing with additional adolescents (n=20) to solicit user feedback regarding the acceptability of intervention content and materials. Finally, in preparation for a pilot study using an effectiveness-implementation hybrid study design, investigators will conduct a pre-implementation evaluation using quantitative surveying (n=6 surveys) with WIC providers (n=60) to better under the culture and climate of WIC. Investigators hypothesize the #BabyLetsMove intervention will be acceptable to adolescents and a future pilot randomized controlled trial will be feasible. Investigators also anticipate identifying modifiable barriers and facilitators to implementing the intervention through WIC, which will help to design an implementation strategy with a high likelihood for uptake by WIC.
The purpose of this study is to assess the effect of a food-specific Go/No-Go (GNG) computerized training task on weight loss, food evaluation, and disinhibition in a population of overweight and obese individuals.
Moms Are Worth It is a lifestyle behavior intervention study aims to prevent excessive gestational weight gain in overweight or obese pregnant women through promotion of the stress management, healthy eating, and physical activity. Eligible women will be randomly assigned to a usual care or an intervention plus usual care group. The intervention will last 20 weeks and will be delivered via weekly web and individual health coaching session (10 of them)
Individuals who are overweight/obese are more vulnerable to type 2 diabetes (T2D). Current evidence suggests that PA, even without dietary prescription, can be efficacious in preventing T2D. Yet most Americans, especially those who are overweight/obese, are not physically active. Socioenvironmental barriers to physical activity (PA) such as body image concerns and limited access to fitness facilities contribute to the low levels of PA observed in overweight/obese adults. Web-based PA programs have been developed to address these barriers, but the outcomes have been marginal. Qualitative studies suggest that individuals who are overweight/obese prefer PA programs that feature people they can relate to especially in body size, fitness status and age. Previously, the investigators have included these preferences in a technology-based Physical Activity for The Heart (PATH) intervention that leverages open source platforms, such as YouTube, to promote PA in any setting. In this application, the investigators propose to test the feasibility and preliminary efficacy of PATH in promoting PA and reducing cardiometabolic risk in adults who are overweight/obese and at high risk of diabetes. In Aim 1 the investigators will conduct a 12-week randomized clinical trial including 52 adults who are overweight/obese and at high risk of diabetes to assess the feasibility and acceptability of PATH. In Aim 2 investigators will examine the trend in PA and cardiometabolic risk change from baseline to post-intervention. This approach is innovative because it leverages open source technologies to provide low-cost, action-oriented PA resources that match the preferences of adults who are overweight/obese. This contribution will be significant because PATH could offer a convenient, enjoyable and scalable program that features "similar others" to promote PA in overweight/obese adults at high risk of diabetes.
Overweight and obesity are highly prevalent conditions worldwide, despite active research of new interventions over decades. Current interventions include medications or bariatric surgery, but these approaches cannot be used in all patients and require clear indications and a close multidisciplinary management. Therefore most patients and physicians rely on lifestyle interventions, focusing on a balanced diet and physical exercise. Recent studies have uncovered that energy metabolism is also regulated by circadian rhythms, which depend on spontaneous diurnal oscillations of the central clock, retinal sensing of ambient light, and daily feeding-fasting cycles. The chronotype has an influence on behavioral patterns, where some people describe that they are more alert in the morning or in the evening: The morning or evening chronotypes, respectively. However, in modern societies, many people are exposed to external cues in misalignment with their circadians clocks. The mismatch between the individual chronotype and the social/work life can lead to metabolic disorders. Time-restricted eating (TRE), i.e. energy intake limited to certain windows of time without restricting calories, is an appealing approach because it proposes to realign the circadian clocks with external cues provided by the timing of food intake, thus leading to better metabolic outcomes. The investigators speculate that the TRE intervention needs to be personalized to reach efficacy in a broader population. To tailor the TRE intervention to each individual and harmonize their eating patterns in accordance to their chronotype, the investigators plan to test early TRE vs. late TRE vs. active control in overweight and obese individuals with morning chronotype.