Environmental Intervention for Weight Gain Prevention - Full Text View

Sponsored by:	National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Information provided by:	National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
ClinicalTrials.gov Identifier:	NCT00708461

Purpose

The primary aim of this research is to evaluate the efficacy of a multicomponent worksite-based, environmental intervention in reducing weight increase and obesity over time in working adults.

Condition	Intervention
Obesity	Behavioral: weight gain prevention intervention

MedlinePlus related topics: Obesity

U.S. FDA Resources

Study Type:	Interventional
Study Design:	Prevention, Randomized, Open Label, Uncontrolled, Parallel Assignment, Efficacy Study
Official Title:	Environmental Intervention for Weight Gain Prevention

Further study details as provided by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK):

Primary Outcome Measures:

Change in body weight [ Time Frame: 2 years ] [ Designated as safety issue: No ]

Secondary Outcome Measures:

Eating behavior [ Time Frame: 2 years ] [ Designated as safety issue: No ]
Physical Activity [ Time Frame: 2 years ] [ Designated as safety issue: No ]

Enrollment:	1749
Study Start Date:	March 2005
Estimated Study Completion Date:	March 2009
Estimated Primary Completion Date:	March 2009 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
1: Experimental weight gain prevention intervention	Behavioral: weight gain prevention intervention The intervention includes: Changes in the worksite food environment (i.e., cafeteria, vending) that: increase the availability of healthy foods and beverages; reduce food and beverage portion sizes; reduce prices on healthy food items; and increase prices on less healthy food items. Changes in the worksite activity environment that: increase the cues and incentives for walking at work and at home; increase the cues and incentives for using stairs; and increase exposure of employees to information about active recreational opportunities at work and at home. Changes in the worksite informational environment that: increase the cues and incentives for regular weight monitoring by providing scales at convenient locations at the worksite and increase the frequency of exposure of the employee population to accurate information about healthy food and activity choices.
2: No Intervention no-treatment control condition

Arms

Assigned Interventions

1: Experimental

weight gain prevention intervention

Behavioral: weight gain prevention intervention

The intervention includes:

Changes in the worksite food environment (i.e., cafeteria, vending) that:
1. increase the availability of healthy foods and beverages;
2. reduce food and beverage portion sizes;
3. reduce prices on healthy food items; and
4. increase prices on less healthy food items.
Changes in the worksite activity environment that:
1. increase the cues and incentives for walking at work and at home;
2. increase the cues and incentives for using stairs; and
3. increase exposure of employees to information about active recreational opportunities at work and at home.
Changes in the worksite informational environment that:
1. increase the cues and incentives for regular weight monitoring by providing scales at convenient locations at the worksite and
2. increase the frequency of exposure of the employee population to accurate information about healthy food and activity choices.

2: No Intervention

no-treatment control condition

Detailed Description:

This study is a randomized trial designed to evaluate the effectiveness of a multi-component worksite intervention with strong environmental components to prevent weight gain. Six worksites will be randomized to either an intervention or a no-treatment control group. The intervention will be comprised of 1) changing the availability, portion sizes, and prices of foods and beverages sold to employees in their worksites in ways that encourage healthier food choices; 2) increasing the availability of physical activity opportunities at the worksite by implementing walking programs and increasing stairwell access and attractiveness; 3) placing scales in the work environment to encourage body weight monitoring and to enable workers to set goals for their weight; and 4) to provide educational materials to all employees to make them aware of the environmental intervention and of behavioral practices likely to be effective in preventing weight gain. The intervention will be implemented for a 2-year period in each intervention site. Effectiveness will be evaluated by assessing body weight, eating behavior and physical activity in a cohort of employees in both control and intervention sites at baseline and again 2 years later. Weight trends in these populations will also be compared to data from national and state-level annual surveys of weight in representative population samples. Data will be collected on the effects of specific intervention components via aggregate measures of food choice and physical activity.

Eligibility

Ages Eligible for Study:	18 Years and older
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	Yes

Criteria

Inclusion Criteria:

age 18 or older
generally in good health
part- or full-time employee in one of the participating worksites

Exclusion Criteria:

none

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00708461

Locations

United States, Minnesota
University of Minnesota
Minneapolis, Minnesota, United States, 55454

Sponsors and Collaborators

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Investigators

Principal Investigator:

Robert W Jeffery, PhD

University of Minnesota, Division of Epidemiology and Community Health

More Information

HealthWorks is a study housed in the University of Minnesota Obesity Prevention Center. This link exits the ClinicalTrials.gov site

Responsible Party:	University of Minnesota ( Robert W. Jeffery, PhD, Principal Investigator )
Study ID Numbers:	1 R01 DK067362
Study First Received:	June 27, 2008
Last Updated:	June 27, 2008
ClinicalTrials.gov Identifier:	NCT00708461
Health Authority:	United States: Federal Government

Keywords provided by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK):

obesity
obesity prevention
worksite
environment
intervention

Study placed in the following topic categories:

Body Weight
Signs and Symptoms
Obesity
Body Weight Changes

Nutrition Disorders
Overweight
Overnutrition
Weight Gain

ClinicalTrials.gov processed this record on January 14, 2009