View clinical trials related to Body Composition.
Filter by:Prospective cohort, monocentric non-randomized and interventional clinical study in ICU assessing the evolution of body composition using bioelectrical impedance analysis.
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is a randomized clinical trial in 25,871 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or fish oil (1 gram of omega-3 fatty acids) reduces the risk of developing cancer, heart disease, and stroke in people who do not have a prior history of these illnesses. This ancillary study is being conducted among a sub-cohort of 771 participants in VITAL and will test the efficacy and safety of high-dose vitamin D supplementation vs. placebo on skeletal health and body composition.
Background: - Researchers want to collect information on diet, physical activity, and sun exposure in children and young adults. The data can provide information on the effect these factors might have on the development of cancer and other diseases. Information collected only from adults does not accurately measure these factors. To collect more accurate information, both mothers and children will provide information. Study participants will be from Hebei province in northeastern China and Jiangsu province in eastern China. Objectives: - To collect and study diet, activity, and sun exposure data from Chinese adolescents and their mothers. Eligibility: - Adolescents between 15 and 17 years of age from Hebei and Jiangsu provinces in China. - Mothers of the study adolescents. Design: - Participants will answer questions about their diet, physical activity, and time in the sun. - Participants will wear a pedometer to measure activity for 7 days. They will also wear a badge to measure sun exposure for 3 days. - Participants will record their activities and food and drinks consumed for 3 days. Urine samples will be collected for a full day. - Participants will have a grip strength test. On the last day of the study, they will provide blood, saliva, and toenail samples. - A smaller separate group of adolescents will provide saliva samples only and complete a food questionnaire.
This was a pilot study to validate the BC3 hydration factor which will be important for determining how well this value represents hydration status compared to assessment of total body water by D20.
The purpose of this study was to validate the Stayhealthy BC1 bioelectrical impedance analyzer to assess percent body fat in children and adults. The BC1 was compared to dual-energy x-ray absorptiometry assessment of body fat for adults and to hydrostatic weighing assessment of body fat for children. We hypothesized that the BC1 would provide similar measures of body fat between devices with acceptable limits of agreement.
The investigators primary objective is to evaluate the effect of a 6 month (3 days/wk) supervised, progressive RT program with increased daily milk intake in untrained adolescents on measures of body composition and cardiovascular risk factors. The investigators hypothesize that milk supplementation will produce significantly greater favorable changes in all body composition measures compared with RT + carbohydrate and control.
EDUFIT is a group-Randomized Controlled Trial specifically designed to enhance physical fitness and other health-related factors in a school setting in adolescents.
The purpose of the study is to examine how a naturally occurring fat found in meats, such as beef and lamb and milk, called conjugated linoleic acid (CLA), will affect your body weight and body fat content, blood fat levels, as well as selected safety parameters. The CLA will be supplemented in an oil form and will be added to solid foods as provided by the metabolic kitchen at the Richardson Centre for Functional Foods and Nutraceuticals (RCFFN).
A key factor in the determination of body composition over the lifecourse is fat accumulation during childhood. Periods of life associated with the greatest changes in organ development and growth, i.e. early childhood, have the most significant effect on body composition, energy balance, and metabolism. Early childhood (age 3 to 7 years) represents a critical transition for the basis of adaptability in body composition, due to the rapid growth and development that occurs. Plausibly the phenotype underlying obesity and related health risk may be determined by body composition during this critical period. Our previous research in children has consistently indicated that HA children accumulate greater amounts of fat, particularly in the intra-abdominal compartment, even at similar a BMI, and lower bone mineral content relative to EA children. The reason for these differences in body composition over the lifecourse is not clear. Racial/ethnic differences in risk factors for health, including 'thriftiness' in body fat accumulation are often evident before the age of 7, suggesting that the racial/ethnic differences in energy utilization and subsequent fat storage may be accounted for by genetic make-up, the environment (e.g. diet), or an interaction of the two. The physiologic or behavioral process(es) that cause(s) certain children to take a trajectory towards obesity while others accrue less fat is not known. However, the economic decision of fuel utilization is a physiologic trait enabling the body to choose between shuttling 'energy' towards accrual of a particular tissue (e.g. bone vs. fat) and this trait likely has a genetic component. This genetic component may be embedded in fat storage capacity evolved from gene by environment interactions that promote thrift, particularly conserved in some populations. Although genetic background plays a role, it not known whether there is a relationship between genetic background, known candidate genes or candidate pathways and environmental contributors (e.g. diet) that impact body composition trajectory. Of central importance to our understanding of early fat mass accumulation in health disparities are the mechanisms that lead to chronic disease progression. It is likely that variations within candidate genes may have a differential impact on individuals based on their genetic background. It is also probable that body composition is influenced by many genes, often within the same metabolic pathways, with small individual effects. These genes may not be significantly associated individually, but when examined as a unit (in a candidate pathway or gene-gene interaction framework) the association becomes significant. Further, children's early environmental exposures (e.g. diet) may interact with both genetic background and variations in candidate genes along resulting in alterations in body composition that predispose HA to excess fat accumulation throughout the lifecourse. To that end, the following specific aims will be evaluated: Aim 1. To examine the associations between genetic admixture and body composition in children aged 3-7 years after controlling for dietary intake. 1. Hypothesis 1.1: There is a direct association between Amerindian admixture and fat mass and in inverse association between Amerindian admixture and bone mass. 2. Hypothesis 1.2: There is a direct association between energy intake and fat accumulation and the relationship will be particularly evident in individuals with a greater proportion of Amerindian admixture. Aim 2. To examine the associations between genetic admixture and bone marrow fat in children aged 3-7 years after controlling for dietary intake. 1. Hypothesis 2.1: There is a direct association between Amerindian admixture and bone marrow fat. 2. Hypothesis 2.2: There is a direct association between energy intake and fat accumulation in bone marrow and the relationship will be particularly evident in individuals with a greater proportion of Amerindian admixture. Aim 3. To examine the relationship between variation in candidate genes and pathways and Amerindian admixture controlling for dietary intake. a. Hypothesis 3.1: Amerindian admixture will be associated with variations in candidate genes and pathways known to be associated with fat accumulation.
The purpose of this research is to evaluate different methods of measuring body composition (amount of fat, muscle, bone, and water in your body) and to determine relationships between body composition and other medical problems associated with spinal cord injury (SCI).