Cafeteria-Based Study of Weight Gain Prevention

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: NCT00142662
Recruitment Status : Completed
First Posted : September 2, 2005
Last Update Posted : March 27, 2014
National Heart, Lung, and Blood Institute (NHLBI)
Information provided by:
Drexel University

Brief Summary:
To investigate two cafeteria-based methods of weight gain prevention in overweight men and women.

Condition or disease Intervention/treatment Phase
Cardiovascular Diseases Heart Diseases Obesity Behavioral: diet Behavioral: financial incentives Not Applicable

Detailed Description:


Obesity is a risk factor for a number of adverse medical and psychosocial outcomes. Solving the obesity problem will require a much greater emphasis on prevention. Treatment research indicates that interventions focusing directly on the food environment (structured meals and control of food stimuli) have considerable promise for weight control. Prevention research has found little support for trying to modify characteristics (e.g., knowledge, beliefs, skills) of individuals, perhaps because this approach does little to modify the food environment. The research will be implemented in a workplace cafeteria where employees eat year-round and where the nutritional composition of the food can be modified.

The study was initiated in response to a Request for Applications issued in October, 2001 on "Environmental Approaches to the Prevention of Obesity". The Request for Applications was jointly issued by the National Institute of Diabetes and Digestive and Kidney Diseases, the National Institute of Environmental Health Sciences, the National Center for Minority Health and Health Disparities, the Office of Behavioral and Social Sciences Research, and the National Heart, Lung, and Blood Institute.


The influence of two promising interventions on food intake, weight change, and related outcomes will be investigated. The first intervention consists of a training program aimed at reducing the energy density of participants' diets inside and outside of the cafeteria. The second intervention consists of financial incentives to encourage the consumption of cafeteria foods lower in energy density. Participants will be 195 Caucasian and African-American men and women between the ages of 21 and 65. They will have a BMI of 23-35 and will have characteristics associated with an increased risk of weight gain. Selection and intake of lunch foods will be measured with digital photography and cashiers' computerized records of food purchases. Cafeteria patrons will be randomly assigned to 1) a measurement-only condition; 2) an intervention designed to teach participants how to reduce the energy density of their diets; or 3) the reduced energy density intervention plus financial incentives for choosing cafeteria foods low in energy density. The potential moderating influence of individual differences characteristics on outcome will also be evaluated. Outcome measures will be administered repeatedly during the intervention and at 9- and 18-month follow-ups. The assessments will include measures of anthropomorphic and blood lipid variables, nutritional intake (both in and out of the cafeteria), physical activity, overeating, eating self-efficacy, and weight-related quality of life.

Study Type : Interventional  (Clinical Trial)
Allocation: Randomized
Primary Purpose: Prevention
Study Start Date : September 2002
Actual Primary Completion Date : August 2005
Actual Study Completion Date : August 2005

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:   21 Years to 65 Years   (Adult, Older 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): NCT00142662

Sponsors and Collaborators
Drexel University
National Heart, Lung, and Blood Institute (NHLBI)
OverallOfficial: Michael Lowe Drexel University

Publications: Identifier: NCT00142662     History of Changes
Other Study ID Numbers: 252
R01HL073775 ( U.S. NIH Grant/Contract )
First Posted: September 2, 2005    Key Record Dates
Last Update Posted: March 27, 2014
Last Verified: January 2008

Additional relevant MeSH terms:
Cardiovascular Diseases
Heart Diseases