Tailored Worksite Weight Control Programs

NCT01880060 | Completed

• 1 other identifier: 5R01DK071664-02
• Study Type: interventional
• Target: 1,790
• Locations: 0 countries
• Sites: N/A

Brief Summary

Given the prevalence of overweight and obesity, worksite-based health promotion programs have been recommended due to their potential reach and social support impact. Within worksite contexts, many strategies to prevent and treat obesity have focused on educational programs delivered in person or to small groups that target knowledge acquisition and strategies targeted at individuals to improve their dietary and activity practices. These programs have been criticized because they typically reach a small percentage of workers-and seldom those that could benefit most, are of short duration, and have typically small effects that are not sustained. They have also typically been conducted in large worksites that have the greatest resources. The lack of success of these programs may be due to: 1) inadequate intervention intensity, 2) implementation challenges, and 3) a lack of theoretical models as the bases for intervention development. To overcome the limitations of previous research we will conduct a 2 group randomized controlled trial to determine the reach and effectiveness of an extensive intervention that: (a) is based upon sound theory, (b) is delivered primarily through scalable interactive technologies, and (c) leverages the existing organizational and environmental context of the workplace.

Conditions

Obesity

Keywords

Worksite; weight loss; obesity

Outcome Measures

Primary Outcomes (1)

• Reach and representativeness of participants in the INCENT intervention

  Determine the reach (participation rate and representativeness)of the INCENT intervention.

  12 months

Secondary Outcomes (1)

• Weight Loss

  6 and 12 months

Other Outcomes (1)

• Composite Measure of Intervention Costs

  12 months

Study Arms (2)

INCENT weight loss program

EXPERIMENTAL

INCENT: The INCENT intervention is an internet-delivered weight loss program with periodic financial incentives for weight loss. INCENT participants receive daily e-mail support with nutritional and physical activity suggestions to enhance weight loss. Monetary incentives are earned on a quarterly basis for weight loss and participants receive monthly checks that reflect the percent weight loss. A regularly calibrated scale with a built in digital camera captures an image of the participant during a weigh-in, and is used to objectively obtain weight data from participants at each quarterly weigh-in.

Behavioral: INCENT weight loss program

Livin My Weigh

EXPERIMENTAL

Livin My Weigh: The Livin My Weigh (LMW) intervention is an internet-delivered weight loss program without daily support or financial incentives. Participants receive quarterly newsletters with tips on weight loss, increasing physical activity, and menu suggestions, and optional quarterly educational sessions. Weight is measured in the same manner as the INCENT participants.

Behavioral: Livin My Weigh

Interventions

INCENT weight loss program BEHAVIORAL

Tangible incentives seem to be effective in enhancing short term, but not long-term weight loss. The monetary rewards are based on participant quarterly weigh-ins and the monetary amount of incentive will be identical to the percentage of body weight lost. Participants who lose 1, 2, 3, 4, or 5% of their body weight will then be compensated with 1, 2, 3, 4, or 5 dollars per month. Dollar amounts for participants that lose more than 5% of initial body weight then increase by increments of 5 (e.g., 5-9% weight loss = $5; 10-14%=$10; 15-19%=$15; \>20%=$20). These incentives will be based on quarterly weight and all percentage weight loss is calculated based on a participant's initial weight. commencement). Participants receive monthly checks that reflect the percent weight loss.

INCENT weight loss program

Livin My Weigh BEHAVIORAL

Livin My Weigh is an internet-delivered weight loss program without daily support or financial incentives. Participants receive quarterly newsletters with tips on weight loss, increasing physical activity, and menu suggestions, and optional quarterly educational sessions. Weight is measured in the same manner as the INCENT participants.

Livin My Weigh

Eligibility Criteria

• Age: 18 Years - 90 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Employed full time at an eligible worksite
• Access to the internet
• BMI \> 25

You may not qualify if:

• BMI \< 25
• no internet access

Sponsors & Collaborators

• Virginia Polytechnic Institute and State University: lead
• National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK): collaborator
• University of North Carolina, Chapel Hill: collaborator

MeSH Terms

Conditions

Obesity; Weight Loss

Condition Hierarchy (Ancestors)

Overweight; Overnutrition; Nutrition Disorders; Nutritional and Metabolic Diseases; Body Weight; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Body Weight Changes

Study Officials

• Paul A Estabrooks, Ph.D.

  Virginia Polytechnic Institute and State University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: June 13, 2013
• First Posted: June 18, 2013
• Study Start: March 1, 2008
• Primary Completion: July 1, 2012
• Study Completion: July 1, 2012
• Last Updated: June 7, 2023

Record last verified: 2023-06