Active clinical trials for "Overweight"

Background: Some studies have found that people can better process sugars when they take walking breaks. Studies have also found that children's attention and memory may improve after exercise. It is not known if short walking breaks have the same effects. Researchers want to study if breaking up sitting with walking for 6 days helps children s bodies use sugars and improves concentration. Objectives: To learn if breaking up sedentary (low-activity) time with short walking breaks over 6 days affects how children s bodies use sugar. To learn if breaking up sedentary time changes children s attention, memory, feelings, activity, or eating. Eligibility: Children ages 7-11 in general good health Design: Participants will be screened with: Medical history Physical exam Fasting blood tests. On 2 out of 7 total study visits, participants cannot eat or drink after 10 p.m. the night before. Full-body X-ray EKG (Electronic signals that record heart function through stickers) Treadmill exercise. Heart, blood pressure, and oxygen will be monitored. Questions about the child s health, socialization, and activity, and parent s education and economic status Picture vocabulary test Dietician meeting (Questions about eating habits) Participants will have visits on 6 consecutive days. Over that time, they will wear 2 devices to monitor blood sugar and activity (even while at home). Participants will have 5 after-school visits. These include: Health check Snack plus food for the next 24 hours Activity monitored 3-hour sitting tests. Participants will do non-active things. Some will have 3-minute walks every 30 minutes. Cognitive tests and questions about mood and anxiety are given on days #1 & 5. Participants will fast before the last visit in the morning. They will have: 9 blood draws by IV catheter. Participants will drink sugar water. Sitting test Activity monitored Meal (food buffet)

Health authorities recommend a reduction in added sugars from sugar-sweetened beverages (SSBs) due to risk of obesity and diabetes. As a sugar-reduction strategy, finding the ideal SSB replacement is of the utmost importance. Those who are already consuming SSBs might not easily replace it with water and therefore non-nutritive sweetened beverages (NSBs) present a sweetened alternative, though guidelines recommend water instead of NSBs as a replacement for SSBs. Recent evidence suggests that saccharine, a non-nutritive sweetener, which is not found in NSBs, might induce glucose intolerance by altering gut microbiota in humans. It is currently not known if replacing SSBs with NSBs (which contain low-calorie sweeteners other than saccharine) or water will have any effect on the human gut microbiota and any downstream diabetic risk. The investigators plan to undertake a randomized controlled cross-over trial in 75 healthy adults to assess the effect of replacing SSBs with equal amounts of NSBs or water for 4 weeks on the composition and diversity of human gut microbiota, changes in glucose tolerance and total body fat in those who regularly drink SSBs. Each participant will act as their own control receiving each of the three interventions of SSB, NSB and water for four weeks in random order, each period separated by a four-week wash-out period. All study visits will occur at the Clinical Nutrition and Risk Factor Modification Centre at St. Michael's Hospital. This study will contribute to knowledge that will inform dietary guidelines and public policy with regards to the best possible replacement for SSBs. It will also shed light on the potential mechanism of the adverse effects of NSBs and if the replacement of SSBs by NSBs or water are in fact similar with respect to their effect on gut bacteria and any downstream diabetic risk.

The purpose of this clinical study is to investigate the effect of drinking a sugar-sweetened beverage along with a meal on insulin concentrations and, glucose and lipid metabolism, in overweight and obese subjects, during a 10-hour visit.

Diabetes is a major non communicable chronic diseases in the world. It occupies the fourth or fifth leading cause of death in most high-income countries and there is strong evidence that has epidemic proportions in many developing countries, including Mexico. Like diabetes, prediabetes is associated with obesity and insulin resistance, thus promoting a lifestyle with healthy eating and physical activity can reduce weight and in turn the risk of diabetes. Several studies have shown that it is possible to prevent or delay the development of type 2 diabetes through a lifestyle intervention based on diet and physical activity. The National Diabetes Prevention Program is a study based on the Diabetes Prevention Program conducted in real-world conditions. It is known that the acculturation of some ethnic groups has led to the increase in certain chronic degenerative diseases due to increased associated risk factors. The rural Yaqui tribe has a high prevalence of overweight, obesity, high triglycerides and type 2 diabetes. In addition to the rural Yaqui tribe there is another settlement of this tribe in the city of Hermosillo Sonora. Information on the health of this ethnic group is limited, however, it is known that being seated in an urban setting with an obesogenic lifestyle, which has been shown to have serious health effects in other populations, suggesting a high prevalence chronic non-communicable diseases such as obesity, type 2 diabetes and hypertension at this ethnic group. The present study is a translational research clinical trial to evaluate the effectiveness of the National Diabetes Prevention Program to improve obesity parameters (weight, BMI, waist circumference) and increase physical activity in adults who are at risk of diabetes in the Yaqui tribe established in Hermosillo, Sonora.

The C677T polymorphism in the MTHFR gene is related to several significant biochemical changes, as dyslipidemia, changes in serum levels of homocysteine, folic acid, vitamin B12 and some oxidative stress markers such as the CAT and MDA, leading to a high risk of the emergence of cardiovascular disease (CVD). A diet containing antioxidants, especially folate, is characterized by being beneficial for individuals with this genetic alteration to possess anti-inflammatory function, act on and oxidative stress play an important gene function. The aim of this study was to evaluate the influence of the C677T polymorphism of the MTHFR gene and the effect of a diet containing folate on oxidative stress, lipid profile and homocysteine levels in adult women are overweight or obese. This is an intervention study, double-blind, held in a city in northeastern Brazil. The study included 48 adult women (20-59 years old) with BMI of 26.19 kg / m² and 49.64 kg / m², in which we evaluated the CAT levels, MDA, lipid profile, folic acid, homocysteine and vitamin B12 addition genotyping for the C677T polymorphism in the MTHFR gene and the food consumption by the food recall 24 hours, being divided by randomization into two groups received daily for 8 weeks, 300g vegetables rich in folate containing 191 ug and 90 ug of this nutrient.

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 hypothesis is that seafood proteins given in combination with carbohydrates with low GI are superior to seafood proteins in combination with carbohydrates with high GI and meat in combination with both carbohydrates with low and high GI in promoting energy expenditure and satiety. The overall objective of this study is to investigate the acute effects of meals containing fish versus meat proteins on energy balance (thermogenesis, appetite regulating hormones and appetite sensations), markers of glucose allostatis and amino acid metabolism.

The aim of this project is to elucidate how high-fat meals with different kinds of dairy products affect postprandial responses of lipid metabolism and inflammatory markers in healthy and obese subjects.

The purpose of the study is to test the effectiveness of a child obesity intervention with multiple components targeting nutrition and/or psycho-social factors in children, their parents, and their classmates. The specific aims of the study are to (1) Determine the effectiveness of two family-level interventions for improving child outcomes (unhealthy eating, low activity, and overweight); (2) Determine the extent to which adding a family dynamics component enhances the effectiveness of a family lifestyle intervention and improves the child outcomes listed above; and (3) Determine the extent to which a peer-level intervention improves the effectiveness of two family-level interventions among overweight children.

Background: The sending of text messages (short messaging service, SMS) has been proven as an effective strategy in behavior change. In Mexico, the Strategy of Comprehensive Care for the Nutrition (EsIAN for its acronym in Spanish ) focuses on improving access to information for the main caregivers of child beneficiaries on the practice of infant feeding and healthy physical activity. Objective: To assess whether the mHealth (or mobile health) strategy or the sending of SMS has an effect on knowledge, attitudes, intentionality, perceived control and practices to prevent childhood malnutrition in a population living in poverty. Design: Randomized effectiveness trial by conglomerates. Participants: 400 primary caregivers of children <59 months and health personnel working in the health units included in the study. Control group: Healthy child care in standard health units plus exposure to EsIAN. Intervention group: In addition to the control group, the SMS are sent through a cell pone through the RapidPro platform on practices related to prevention of child malnutrition (in primary caregivers) and the reinforcement of counseling for the prevention of infant malnutrition (with health personnel). Randomization: The first level health units were stratified by state (Morelos or Yucatan); rural and urban area and affiliation institution (Secretary of Health or Mexican Institute of Social Security); and randomized to be assigned to the control or intervention group; 400 primary caregivers of children <59 months in total will be included for the study. Main measures of interest: State of nutrition and knowledge, attitudes or practices on breastfeeding, physical activity, adoption and preparation of healthy foods and beverages in primary caregivers of children<5 years old; and advice on the key messages of EsIAN by health providers.