Environmental Intervention for Weight Gain Prevention
HealthWorks
2 other identifiers
interventional
1,747
1 country
1
Brief Summary
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable obesity
Started Jan 2006
Longer than P75 for not_applicable obesity
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2006
CompletedFirst Submitted
Initial submission to the registry
June 27, 2008
CompletedFirst Posted
Study publicly available on registry
July 2, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2009
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2010
CompletedResults Posted
Study results publicly available
July 18, 2013
CompletedNovember 1, 2019
October 1, 2019
3.2 years
June 27, 2008
December 13, 2011
October 30, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in Body Mass Index (BMI)
Assessed in kilograms per meter squared.
Baseline to 24 months
Study Arms (2)
Worksite Environmental Intervention
EXPERIMENTALChanges to healthy food availability, physical activity opportunities and promotion, body weight scale access, and media enhancements to target weight gain prevention
No-contact control
NO INTERVENTIONNo-treatment control condition. Worksites were offered program materials upon completion of programs at intervention sites.
Interventions
1. Changes in the food environment 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. 2. Changes in the activity environment that increase cues and incentives for walking at work and at home, using stairs, and to increase exposure of employees to information about active recreational opportunities at work and at home. 3. Changes to the environment to increase cues and incentives for regular weight monitoring by providing scales at convenient locations. 4. Changes in the informational environment that increase frequency of exposure of the employee population to accurate information about healthy food and activity choices.
Eligibility Criteria
You may qualify if:
- age 18 or older
- generally in good health
- part- or full-time employee in one of the participating worksites
You may not qualify if:
- work on site \<50% of the time
- work second or third shift
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Minnesota
Minneapolis, Minnesota, 55454, United States
Related Publications (5)
VanWormer JJ, Linde JA, Harnack LJ, Stovitz SD, Jeffery RW. Weight change and workplace absenteeism in the HealthWorks study. Obes Facts. 2012;5(5):745-52. doi: 10.1159/000345119. Epub 2012 Oct 24.
PMID: 23108493RESULTLinde JA, Nygaard KE, MacLehose RF, Mitchell NR, Harnack LJ, Cousins JM, Graham DJ, Jeffery RW. HealthWorks: results of a multi-component group-randomized worksite environmental intervention trial for weight gain prevention. Int J Behav Nutr Phys Act. 2012 Feb 16;9:14. doi: 10.1186/1479-5868-9-14.
PMID: 22340088RESULTVanWormer JJ, Linde JA, Harnack LJ, Stovitz SD, Jeffery RW. Is baseline physical activity a determinant of participation in worksite walking clubs? Data from the HealthWorks Trial. J Phys Act Health. 2012 Aug;9(6):849-56. doi: 10.1123/jpah.9.6.849. Epub 2011 Jul 29.
PMID: 21952267RESULTVanWormer JJ, Linde JA, Harnack LJ, Stovitz SD, Jeffery RW. Self-weighing frequency is associated with weight gain prevention over 2 years among working adults. Int J Behav Med. 2012 Sep;19(3):351-8. doi: 10.1007/s12529-011-9178-1.
PMID: 21732212RESULTGraham DJ, Linde JA, Cousins JM, Jeffery RW. Environmental modifications and 2-year measured and self-reported stair-use: a worksite randomized trial. J Prim Prev. 2013 Dec;34(6):413-22. doi: 10.1007/s10935-013-0323-2.
PMID: 23979097DERIVED
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
The recruitment goal of 6 sites represents only 3% of those initially contacted for participation, or 16% of eligible and interested sites. The design limits power due to the small sample size at the group level.
Results Point of Contact
- Title
- Jennifer A. Linde, Ph.D.
- Organization
- University of Minnesota
Study Officials
- PRINCIPAL INVESTIGATOR
Robert W Jeffery, PhD
University of Minnesota, Division of Epidemiology and Community Health
Publication Agreements
- PI is Sponsor Employee
- Yes
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 27, 2008
First Posted
July 2, 2008
Study Start
January 1, 2006
Primary Completion
March 1, 2009
Study Completion
March 1, 2010
Last Updated
November 1, 2019
Results First Posted
July 18, 2013
Record last verified: 2019-10