View clinical trials related to Overweight.
Filter by:Overweight and obesity, which afflicts ~65% of the U.S. population and more than 1 billion people worldwide, increases the risk of developing hypertension. Activation of the renin angiotensin system (RAS) is an important mechanism by which obesity leads to hypertension. In addition to its vasoconstricting and sodium retaining actions, angiotensin II also has potent pro-inflammatory actions including macrophage infiltration and expression of proinflammatory cytokines in target tissues. Adipose tissue and skeletal muscle appear to be a key sites for the generation of proinflammatory cytokines. Although angiotensin II receptor blockade reduces inflammation in many tissues, the effects on adipose tissue and skeletal muscle in humans are not clear. Importantly, the chronic low grade inflammatory state that accompanies obesity complicates hypertension by contributing to insulin resistance and accelerating cardiovascular disease. Therefore, the general aim of the present proposal will be to determine the influence of angiotensin II receptor blockade on adipose tissue and skeletal muscle inflammation and its relation to improvements in insulin sensitivity, if observed, in obese hypertensive humans. To address these aims, 44 obese (BMI>30 kg/m2) hypertensive (BP>140 systolic and/or 90 diastolic) individuals (age=50-65 years) will be randomized to receive 8 weeks of either the angiotensin II receptor antagonist, olmesartan medoxomil, or no treatment in a crossover manner. Subcutaneous adipose tissue and skeletal muscle biopsies will be obtained and insulin sensitivity (intravenous glucose tolerance tests) will be assessed at baseline and following 8 weeks of each intervention. A two week washout period will separate the interventions.
The purpose of this study is to evaluate the impact of a worksite lifestyle intervention for diabetes prevention among employees with prediabetes.
High intake of insoluble fiber is strongly associated with a reduced incidence of diabetes and cardiovascular events in prospective observation studies. Our primary objective is to compare a life style diabetes prevention program(PRAEDIAS) with and without added insoluble fibers in its effectiveness to prevent incident diabetes type 2 in high risk individuals with impaired glucose tolerance. Subjects with IGT not willing to participate in the intervention will be used as independent controls. Secondary aims are to identify mechanisms of action with regard to body composition, anti-inflammatory and metabolic effects of fibers. We propose a randomized, prospective intervention study. The results will be of general relevance for guidance of fiber intake in the population and will help the food industry to design healthy high fiber foods. Fiber can be added at low cost to numerous foods. Increased fiber intake may therefore provide a simple non-cognitive prevention strategy effective at the population level.
Subjects are randomized to either IQP-VV-102 or a matching placebo. Over 12 weeks, the subjects' body weight, body fat and safety parameters are monitored
CHOICES is a program to provide children and families with lifetime tools and lifestyle strategies to achieve and maintain a healthy body size. Both parents and children get active, learn about the food choices they can make, and about the roles of TV in their lives. Led by physicians and young adults, the 12 weekly 90 minute sessions provide hands on experiences that connect into the participants' daily lives. In the study, the families were divided into two groups, beginning their classes 6 months apart. Body measurements were taken at baseline and every 4 months to 16 months.
This study is designed to assess the effect of oligofructose administration for 12 weeks on Body Mass Index (BMI) of overweight and obese children.
The purpose of this study is to determine the effectiveness of a worksite diet and exercise program on weight loss in postpartum women.
The number of overweight and obese children has increased in Ireland at a greater rate than worldwide trends. The poor eating patterns that drive adolescent obesity leads to an increase in the number of unhealthy inflammatory hormones and fats circulating in the blood which increase an adolescent's risk of developing diabetes and heart disease later in life. Dietary patterns have changed whereby key nutrients that are found in fruit, vegetables and fish, which are known to have beneficial effects and reduce risk of obesity and diabetes in later life, may need to be replaced. This project will determine whether a key anti-inflammatory nutrient supplement taken for 8 weeks will improve the metabolic profile of adolescents aged 13-18 years old. Detailed cellular analysis will determine the cellular and molecular mechanisms to provide a thorough explanation of the health effects of this intervention.
The investigators will conduct a randomized trial to evaluate the effectiveness of 3 levels of recommended exercise in initially overweight and obese sedentary men and women on the prevention of weight regain. Participants will complete a 3 mo. weight loss intervention of decreased energy intake (EI) and increased energy expenditure (100 minutes of physical activity per week). Participants achieving clinically significant weight loss (> 5% of initial weight), will be randomly assigned to 12 mos. of exercise at levels of energy expenditure of exercise (EEEx) recommended by Health and Human Services (HHS), American College of Sports Medicine(ACSM), Institute of Medicine (IOM): 150, 225, or 300 minutes per week. Major outcome assessments will occur prior to weight loss (-3 mos.), at completion of weight loss (0 mos.), at the midpoint (6 mos.), and completion of weight maintenance (12 mos.).
The rise in childhood overweightness and concomitant increase in chronic disease risk warrants exploration into the effectiveness of interventions targeting the eating and activity habits of overweight youth. This research study developed and tested a "Beverage Choice and Lifestyle Modification" (BCLM) intervention for 4 to 8 year old children who are at-risk for being overweight or are overweight and who consume large amounts of sugar sweetened beverages and juice. The overall study objectives were to test the acceptability and effectiveness of the BCLM intervention for improving the weight status, energy (kcal) intake, beverage selections and beverage preferences of children in targeted age and BMI group. The investigators hypothesized that those children randomized to the BCLM group will show greater improvements in weight and Body Mass Index (BMI) status, beverage choices,and energy intake than those assigned to our Nutrition Education (NE) group.