Track topics on Twitter Track topics that are important to you
To determine whether a one year afternoon exercise program will reduce adiposity in African American girls, ages 8 to 10.
Obese children who engage in vigorous exercise programs show beneficial effects on total body percent fat (percent BF) and visceral adipose tissue (VAT); however, little is known about how to prevent accretion of total body or visceral adiposity in high risk youths, such as African-American (AA) females.The project has important health implications for two reasons, as follows. There is a dearth of information concerning the effects of exercise interventions in school and community settings. If the study shows that an afternoon exercise program reduces accretion of general and visceral adiposity and has a favorable impact on fitness and health in a population that is at high risk of obesity, then schools may be encouraged to implement similar interventions to prevent juvenile obesity and associated health problems.
The study was awarded in response to a Program Announcement on Physical Activity and Cardiopulmonary Health released in October 1994 jointly by the NHLBI, the National Institute of Diabetes and Digestive and Kidney Diseases, and the National Institute of Nursing Research.
The design involves randomization of 200 African American girls, eight to 10 years of age into intervention or control groups. After one year, the groups are compared to test the primary hypothesis that a one year afternoon exercise program will reduce accretion of general and visceral adiposity in these girls. Then the girls will switch group assignments for the next year. The pattern of data over the three time points will show what happens over a two year period in which the youths are, or are not, involved in the exercise program. The measurements will include: (1) percent body fat with dual-energy x-ray absorptiometry; (2) visceral adipose tissue (VAT) with magnetic resonance imaging; (3) cardiovascular fitness with a multi-stage treadmill test; (4) cardiovascular disease (CVD) risk factors (i.e., the ratio of total to high density lipoprotein cholesterol, insulin, systolic blood pressure, and fibrinogen); (5) free-living exercise and diet; (6) psychosocial variables (i.e., self-efficacy and self-concept); (7) sexual maturation; (8) anthropometric measures. The exercise program will be implemented in neighborhood schools for 90 minutes each weekday afternoon. Transportation will be provided if needed. Sessions will include motor skill instruction and aerobic exercises.
National Heart, Lung, and Blood Institute (NHLBI)
Published on BioPortfolio: 2014-08-27T03:57:22-0400
This study evaluates the effects of different volumes of aerobic exercise training in cardiovascular parameters of patients with cardiovascular diseases enrolled in a cardiac rehabilitatio...
The purpose of the study is to investigate whether long-term heat therapy (i.e. 8 weeks of hot tub 4-5x per week) improves biomarkers of cardiovascular health in young, healthy, able-bodie...
To document the role of the genotype in the cardiovascular and metabolic responses to aerobic exercise-training and the contribution of inherited factors in the changes brought about by re...
To determine the minimal dose of physical activity necessary to improve cardiovascular (CV) health by evaluating and aerobically training 500 healthy men and women, 30-65 years of age.
The main purpose of this project is to investigate the effects of an exercise program on arterial function and cardiovascular diseases risk factors in obese and lean pre-pubertal children....
Myokines are peptides produced and released by myocytes of muscle fibers that influence physiology of muscle and other organs and tissues. They are involved in mediating the beneficial effects that ex...
A complex relationship exists between exercise and atrial fibrillation (AF). Moderate exercise reduces AF risk whereas intense strenuous exercise has been shown to increase AF burden. It remains uncle...
High-intensity interval exercise (HIIE) is more effective at increasing metabolic and cardiovascular health compared to moderate-intensity continuous exercise for patients with cardiovascular disease,...
Resistance exercise (RE) can improve many cardiovascular disease (CVD) risk factors, but specific data on the effects on CVD events and mortality are lacking. We investigated the associations of RE wi...
The long term benefits of exercise on the cardiovascular status of a patient have been proven, however, their benefit/risk relationship with exercise intensity is unclear. Furthermore, many thromboemb...
Controlled physical activity, more strenuous than at rest, which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used. The intensity of exercise is often graded, using criteria such as rate of work done, oxygen consumption, and heart rate.
A cardiovascular exercise strategy with alternating short periods of intense anaerobic exercise with less-intense recovery periods.
The exercise capacity of an individual as measured by endurance (maximal exercise duration and/or maximal attained work load) during an EXERCISE TEST.
Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.
Methods and procedures for the diagnosis of diseases or dysfunction of the cardiovascular system or its organs or demonstration of their physiological processes.
Obesity is the condition in which excess fat has accumulated in the body (mostly in subcutaneous tissues). clinical obesity is considered to be present when a person has a BMI of over 30 (Oxford Dictionary of Medicine). It is becoming increasing common i...
Pediatrics is the general medicine of childhood. Because of the developmental processes (psychological and physical) of childhood, the involvement of parents, and the social management of conditions at home and at school, pediatrics is a specialty. With ...
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...