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Prev Med Rep. 2015;2:118-126.

A Translational Worksite Diabetes Prevention Trial Improves Psychosocial Status, Dietary Intake, and Step Counts among Employees with Prediabetes: A Randomized Controlled Trial.

Author information

1
Professor, Department of Human Sciences, Human Nutrition, Ohio State University, 1787 Neil Ave., 325 Campbell Hall, Columbus, OH 43210, USA, T: 614-292-1391.
2
Graduate Research Assistant, Department of Human Sciences, Human Nutrition.
3
J.O. Ritchey Endowed Professor of Medicine, Indiana University School of Medicine, 410 W. 10 Street, Room 1140, Indianapolis, IN 46202, USA.
4
Professor, Division of Biostatistics, College of Public Health.
5
Associate Professor, Department of Human Sciences, Kinesiology.

Abstract

OBJECTIVE:

Few worksite trials have examined the impact of diabetes prevention interventions on psychological and behavioral outcomes. Thus, the impact of a worksite lifestyle intervention on psychosocial outcomes, food group intake, and step counts for physical activity (PA) was evaluated.

METHOD:

A randomized pretest/posttest control group design with 3-month follow-up was employed from October 2012 to May 2014 at a U.S. university worksite among employees with prediabetes. The experimental group (n=35) received a 16-week group-based intervention while the control group received usual care (n=33). Repeated measures analysis of variance compared the change in outcomes between groups across time.

RESULTS:

A significant difference occurred between groups post-intervention for self-efficacy associated with eating and PA; goal commitment and difficulty; satisfaction with weight loss and physical fitness; peer social support for healthful eating; generation of alternatives for problem solving; and intake of fruits, meat, fish, poultry, nuts, and seeds (all ps < .05). The experimental group significantly increased step counts post-intervention (p = .0279) and were significantly more likely to report completing their work at study end (p = .0231).

CONCLUSION:

The worksite trial facilitated improvement in modifiable psychosocial outcomes, dietary patterns, and step counts; the long-term impact on diabetes prevention warrants further investigation.

TRIAL REGISTRATION:

ClinicalTrials.gov identifier: NCT01682954.

KEYWORDS:

dietary intake; goal setting; physical activity; prediabetes; randomized controlled trial; self-efficacy

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