View clinical trials related to Overweight.
Filter by:Background: Dopamine is a natural chemical in the brain that may influence eating behavior and physical activity. Researchers want to measure the brain s dopamine activity and understand how it differs in people with obesity. Objective: To better understand how brain function, particularly dopamine activity, relates to body weight and eating behavior. Individuals may be able to participate if they: Have a BMI of at least 18.5 kg/m2 Are weight-stable and generally healthy Are between ages 18-45 years Have normal blood pressure Are not using illegal drugs (based on urine drug screen) Are not following a special diet Do not have metal implants Design: Participants will be screened with: - Medical history - Physical exam - Questionnaires and an interview to see if it is safe to have a PET/MRI scan - Fasting blood and urine tests - Participants will eat a special diet given to them for the 5 days before their inpatient visit. Participants will have a 5-day inpatient visit. Some days include blood and urine tests. Each day includes surveys and tests to measure habits and likes/dis-likes. A sample schedule may be: Day 1: Participants will wear a monitor that uses a needle below the skin to measure glucose. Their body fat will be measured with low-dose x-rays Day 2: Participants will have a PET scan. They will lie on a table that slides in and out of a donut-shaped scanner. They will be injected with a small amount of a radioactive substance and wear a cap on their head. Day 3: Participants will have an MRI. They will lie on a table that slides in and out of a scanner. Day 4: Participants will have another PET scan. This time, they will drink a milk shake during a break from the scanner. Then, they will go back inside the scanner for the end of their scan. Day 5: Participants will wear a hood for up to 40 minutes to measure their breathing. They will also drink special water and collect samples of their urine to measure the rate they burn energy. For 12 months after the visit, participants will track their weight and physical activity daily using a special scale and activity monitor. A few times over the year, the study team will send participants special activity monitors to use for 7 days at a time. Participants will have an in-person 1-day follow-up visit. This includes most tests except for PET scanning....
The purpose of the study is: (1) to evaluate the short-term effects of a 10-week residential stay in a Danish Christmas Seal Home on health, physical fitness, physical activity level, learning, sleep and well-being; (2) to investigate the long-term effects 3 and 12 months after the stay; and (3) to examine whether a special effort involving a high-intensity activity/health education programme (FIFA 11 for Health) increases the effects on physical fitness and health knowledge, learning capabilities, sleep patterns, well-being and adherence to a physically active lifestyle compared to the standard programme.
It is well known that steam onion have benefit effects on controlling the blood sugar, triacylglycerol (TG) and total cholesterol (TC). In this study, the jeju steam onion examined whether it has beneficial effects on reducing body fat of overweight or obesity subjects.
Breast milk is the best food during the first 6mo of life because it offers multiple benefits for the mother-infant pair. An inadequate maternal diet during pregnancy can lead to excess weight gain, leading to negative health consequences for the dyad. In Mexico, an excess of body weight coexists with micronutrient deficiencies (double burden of malnutrition). Low vitamin A concentration has been observed in northwest Mexico, which can affect the human milk composition and increase the risk of VAD in breastfed babies. An individualized dietary intervention in the lactating woman will reduce body weight and improve vitamin A status. The objective is to assess the effect of an individualized dietary intervention during 3 months postpartum on body composition and vitamin A status of lactating women.
This study will be a randomized cross-over design over the course of 2 academic years. 40 subjects -20 overweight women and 20 over weight men will be recruited. Each subject will have body composition tested, blood lipid profile, and resting metabolic rate done in the beginning of the first academic year and at the end of the first academic year. The intervention group will receive activity trackers, diet counseling, and fitness counseling for one academic year. The second year, all outcome measures (a body scan, blood lipid profile, and resting metabolic rate) will be performed again at the start of the academic year 2, except the intervention group will now be the control group and the control group will now receive the same intervention. All final outcome measures will be performed at the end of the second year.
Hockey Fans in Training (Hockey FIT) is a 12-month (3-month active phase and 9-month minimally-supported phase) weight loss and healthy lifestyle program for middle-aged, male hockey fans with overweight or obesity, delivered by trained coaches in collaboration with major junior or professional hockey teams and implementation partners (e.g., YMCAs, local fitness facilities, and universities) in Canada and the United States. In the proposed study, a minimum of 32 sites (affiliated with hockey teams and local implementation partners) will be randomly assigned to either immediate delivery (Hockey FIT program) or delayed delivery (wait-list control). At each site, male hockey fans at risk for chronic diseases will be recruited to take part in the study (note: the goal is to recruit approximately 40 men/site). Sites assigned to the delayed delivery group will offer the Hockey FIT program to their enrolled participants after 12 months. Through the Hockey FIT program, the investigators aim to promote weight loss, increase physical activity levels, and improve other health measures through a cost-effective solution that is acceptable and appealing to men who have overweight or obesity.
The aim of this study is to examine the effect of methionine and cysteine restriction on energy and macronutrient metabolism in overweight human subjects
In Mexico, 7 out of 10 adults are overweight or obese. The diseases associated with these conditions (diabetes, cardiovascular disease and some cancers) are those that impact the most on the disability-adjusted life years of Mexicans and on their mortality rates. A reduction in body weight of 5-10% can reduce the incidence of obesity related diseases. The gold standard for treating obesity is an intensive lifestyle change program such as the Diabetes Prevention Program (DPP) whose effectiveness has been evaluated in various formats and populations with positive results, including in Mexico. However, the DPP is not accessible to all sectors of the population. To increase its dissemination, the implementation of online interventions based on the DPP (oi-DPP) has been proposed. A systematic review of oi-DPP showed promising results, however, the evidence is limited and the lack of studies of high methodological quality is highlighted. The main objective of this project is to evaluate the efficacy of an oi-DPP for weight loss in Mexican adults with overweight or obesity at 3 months. The study design is a randomized controlled trial with 2 arms: oi-DPP and wait-list control. A 3 months pilot study (n=30) will be conducted prior to the main study to estimate sample size, considering an alpha error of 0.05 and power of 80%. The primary outcome is the mean change in body weight from baseline to 3 months post-baseline between the 2 groups. Secondarily, differences in biochemical parameters (fasting glucose, total cholesterol, LDL cholesterol, HDL cholesterol, triglycerides and gamma glutamyl transferase) from baseline to 3 months will be evaluated, as well as mean changes from baseline to 3 and 6 months in body mass index, waist circumference, systolic and diastolic blood pressure, depression and quality of life scales and the number of participants achieving a weight loss greater than 5% of initial body weight. Body weight will be also evaluated at 6 months post-baseline. The previous measurements will apply both in the pilot study and the study except for the biochemical parameters that will only be included in the main study. The differences between the 2 groups for each variable will be analyzed using a t test for independent samples, in case of having a parametric sample. Otherwise, the Mann-Whitney U test will be used. Analysis will follow the intent-to-treat principle.
This clinical trial will test the effects of an n-7 monounsaturated fatty acid known as palmitoleic acid (POA) on a chronic inflammation marker in overweight subjects. The study will enroll male and female subjects from healthy populations with high levels of the inflammatory marker c-reactive protein (CRP). Investigators will then determine over time if palmitoleic acid supplementation can lower circulating levels of c-reactive protein. Investigators will administer palmitoleic acid at two doses in addition to a placebo and conduct a double-blind parallel arm study. Circulating CRP will be the primary endpoint and secondary endpoints are Interleukin 6 (IL-6), Tumor necrosis factor (TNF) alpha, ghrelin, peptide tyrosine tyrosine (peptide YY), cardio lipid markers, glucose, insulin, leptin, adiponectin, and red blood cell (RBC) and serum fatty acids.
The purpose of this study is to evaluate the satiating effects of different functional yogurts enriched with soluble fiber or vegetable protein on overweight subjects (BMI ≥25 and <30 kg / m2). Some studies have shown the contribution of high-fiber foods in the reduction of the cardiovascular risk. On the other hand, protein consumption could have a greater satiety potential compared to other macronutrients.