View clinical trials related to Overweight.
Filter by:The project is designed to test the effectiveness of a multilevel worksite wellness program, based in Rhode Island and nearby neighboring states to impact employee weight, dietary intake and physical activity, compared to an attention placebo condition.
We propose to conduct a randomized study of standard behavioral weight-loss treatment to test if using an electronic diary with or without tailored feedback will improve adherence to self-monitoring and subsequently improve weight loss. Subjects will be randomly assigned to different methods to self-monitor food and exercise habits: (1) use of the traditional paper diary , (2) use of a personal digital assistant (PDA), or (3) use of a personal digital assistant that also provides daily feedback.
This project aims to conduct a unique, community-based intervention consisting of a randomized trial of a culturally-appropriate weight loss intervention for overweight Latino children in Milwaukee. The intervention promotes lifestyle changes through a low weight loss regimen, one or more physical activities ranging from soccer to hip-hop dance, and dietary counseling including cooking classes for parents. In addition to weight reduction for overweight Latino children, the project has the potential to reduce missed school days and improve self-esteem and quality of life.
The purpose of this study is to investigate the effect of three diets different in type and amount of fat in weight maintenance and prevention of life-style diseases in obese subjects.
High quality behavioral weight loss programs are not widely accessible. The Internet offers one way to deliver health behavior programs to a wider audience. However, effective weight loss treatments are intensive and program delivery over the Internet may not be capable of duplicating the level of engagement typically generated during traditional in-person treatment. The goal of this study is to test the effectiveness of three weight loss interventions: Internet alone, Internet+periodic in-person support, and in-person alone. The investigators hypothesize that the in-person and internet+in-person interventions will produce better weight loss and maintenance than the internet only group.
This study will examine whether family-based interpersonal psychotherapy (FB-IPT) is an effective tool for helping pre-adolescent girls and boys at risk for become obese to reduce weight gain. IPT is a time-limited group therapy for preventing and treating depression in children. It is also effective for treating binge eating disorder in adults and has resulted in weight maintenance or modest weight loss in obese adults. IPT focuses on improving how people relate to one another by relating symptoms to personal problem areas and then developing strategies for dealing with these problems. Girls and boys between the ages of 8-13 years of age who are in good general health with the exception of being overweight and whose body mass index (BMI) is above the 85th percentile for their age and sex may be eligible for this study. Candidates are screened with a physical examination, measurement of their height and weight, blood and urine tests, a DEXA scan (x-ray scan that measures body fat, muscle and bone mineral content), and questionnaires and an interview to obtain information about the child's general health, social and psychological function, and eating patterns. Parents are also screened for their health and are asked to give blood samples for genetic studies and participate in a few questionnaires and interviews. Participants are randomly assigned to participate in FB-IPT or a health education program. Both programs involve 12 weekly visits. At the end of the study, the body weight and mood of the girls and boys in both groups are compared. Participants (a parent and their child) meet individually with the therapist for 12 sessions (each approximately an 45 minutes ). Girls and boys offered FB-IPT have meetings in which they develop strategies for dealing with the problems girls struggle with that may lead to increased eating. Girls and boys in the health education group have meetings that focus on teaching teens children to live healthier lives and review topics related to developing and maintaining healthy eating and exercise. All participants are evaluated at the end of the 12-week program and asked to return to the NIH for follow-up visits at post treatment, 6 and 12 months following initiation of the program. Each child and parent will be compensated for their time and inconvenience with $40 for completing all pre-program assessments, $40 for attending the 12 week follow-up visit, $40 for the 6 month follow-up visit, and $40 for the 1-year follow-up. Therefore, each child may receive up to $160, and the participating parent may receive up to $160. If a child's second biological parent is also willing to give a genetic sample and undergo interviews, the second parent can also receive $40 for a single visit to the NIH.
Objective - A variety of herbal, over-the-counter preparations of tea leaves are said to reduce the rate of absorption of fat ( allegedly via inhibition of pancreatic lipase) and carbohydrate (via inhibition of carbohydrate digestion and blocking of glucose transport by the intestinal mucosa). There has been some study of the ability of these products to reduce the blood glucose increase observed after a carbohydrate meal and to reduce blood cholesterol levels in chronic studies. The purpose of the present study is to objectively determine if one cup of “tea” made from a combination of three types of tea leaves (mulberry, black and green tea) can cause malabsorption of carbohydrate and fat taken in conjunction with the tea. Research Design - The study will consist of a double blind, placebo controlled crossover study in 20 healthy subjects. On one of two days (one week apart) the subjects will ingest a standard meal consisting of 30 g of sucrose (in the tea) and 30 g of starch in the form of white rice plus 10 g of fat as butter. To measure triglyceride absorption, each meal will also contain 250 mg of 13-C labeled triolein. Triolein is a commonly ingested fat consisting of glycerol bound to three oleic acids. 13-C is a stable (non-radioactive) isotope of carbon. On one of the test days the subjects (randomly) will concurrently consume the active preparation, a tea containing extracts of the three types of tea leave described above plus the meal, and on the other test day they will consume the meal with a liquid placebo preparation (warm water, sugar and food coloring). Subjects will provide a breath sample before and at hourly intervals for 8 hours after ingestion of the meal. Carbohydrate malabsorption will be determined by the hydrogen concentration in the breath samples and fat malabsorption by the concentration of 13-CO2 in the breath samples. Clinical Significance - An increase in breath hydrogen indicates carbohydrate malabsoption and a low 13-CO2 indicates lipid malabsorption. Objective evidence that the tea leaf extract actually induces carbohydrate and/or fat malabsorption could provide the basis for further studies.
The 2010 National Health Objectives call for a reduction in the prevalence of obesity. The marked recent increase in overweight and obesity prevalence implicates behavioral factors in the etiology of the epidemic. The present proposal hypothesizes the trend is attributal, in part, to increasing consumption of energy-yeilding beverages since they are a significant and increasing source of dietarty energy and they elicit weaker appetitive and dietary responses than solid foods.
To investigate the hypothesis that reducing the glycemic load of the diet will improve changes in body composition and cardio-vascular risk factors. The study compares a conventional reduced-fat, high carbohydrate diet with 3 means of reducing glycemic load: changing the carbohydrates to low-GI choices, replacing some of the carbohydrate with protein, or combining both effects to produce the lowest glycemic load.
The purpose of this study is to compare the effectiveness of Weight Watchers, brief behavioral treatment, and a combination treatment. We hypothesize that a combination treatment will achieve greater weight losses than Weight Watchers alone.