Lifestyle, Adiposity and Cardiovascular Health in Youths

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00006402
Recruitment Status : Completed
First Posted : October 13, 2000
Last Update Posted : January 21, 2008
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)

Brief Summary:
To determine the influences of diet and physical activity (PA) on total body fatness and regional fat distribution and the relationship of these to risk factors of cardiovascular disease during adolescence.

Condition or disease
Cardiovascular Diseases Heart Diseases Obesity

Detailed Description:


Adult studies have shown that adiposity, especially visceral adipose tissue, and cardiovascular (CV) fitness are key links between lifestyle factors like diet and exercise on one hand, and CV disease on the other. However, very little is known about these links during the juvenile years, when the processes leading to CV disease are at an early stage of development.

The study is in response to a Program Announcement issued in March 1998 on Diet and Cardiovascular Disease Risk in Children and Adolescents. The Program Announcement, jointly issued by the National Institute of Nursing Research and the NHLBI, sought to encourage research relevant to the development and/or testing of dietary interventions to improve the cardiovascular disease (CVD) risk profiles in children and adolescents, especially those at increased risk for CVD or for development of CVD risk factors because of genetics, family history, socioeconomic status (SES), race/ethnicity, levels of blood cholesterol or blood pressure, or other factors.


The study determines the relations of free-living diet and exercise to total body percent fat ( percent BF), visceral adipose tissue and CV fitness in black and white boys and girls of varying socioeconomic status (SES). The study also determines the relations of fatness and fitness to different CVD risk factors. A total of 800 15 to 18 year olds, 200 in each ethnic and gender subgroup will be recruited. Diet will be assessed with seven 24-hour recalls, and exercise with two seven-day recalls and heart rate monitoring. Percent body fat will be measured with dual-energy x-ray absorptiometry, visceral adipose tissue with magnetic resonance imaging and CV fitness with a multi-stage treadmill test. Measurements will be made of major fatness- and fitness-related CV disease risk factors (e.g., total cholesterol:HDL cholesterol ratio, insulin, systolic blood pressure, left ventricular mass indexed to height, fibrinogen). Multivariate and univariate analyses will be conducted to determine relationships.

Study Type : Observational
Study Start Date : August 2000
Actual Primary Completion Date : July 2004
Actual Study Completion Date : July 2004

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   15 Years to 18 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
No eligibility criteria

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00006402

Sponsors and Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
OverallOfficial: Paule Barbeau Augusta University

Publications: Identifier: NCT00006402     History of Changes
Other Study ID Numbers: 927
First Posted: October 13, 2000    Key Record Dates
Last Update Posted: January 21, 2008
Last Verified: January 2008

Additional relevant MeSH terms:
Cardiovascular Diseases
Heart Diseases