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PDA+: A Personal Digital Assistant for Obesity Treatment - An RCT testing the use of technology to enhance weight loss treatment for veterans

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Title: PDA+: A Personal Digital Assistant for Obesity Treatment - An RCT testing the use of technology to enhance weight loss treatment for veterans
Author(s): Duncan, Jennifer M.; Janke, E. Amy; Kozak, Andrea T.; Roehrig, Megan; Russell, Stephanie W.; McFadden, H. Gene; Demott, Andrew; Pictor, Alex; Hedeker, Don; Spring, Bonnie
Subject(s): quality of life health care costs loss maintenance chronic pain
Abstract: Background: Obese adults struggle to make the changes necessary to achieve even modest weight loss, though a decrease in weight by as little as 10% can have significant health benefits. Failure to meet weight loss goals may in part be associated with barriers to obesity treatment. Wide-spread dissemination of evidence-based obesity treatment faces multiple challenges including cost, access, and implementing the programmatic characteristics on a large scale. Aims: The PDA+: A Personal Digital Assistant for Obesity Treatment randomized controlled trial (RCT) was designed to test whether a PDA-based behavioral intervention enhances the effectiveness of the existing group weight loss treatment program at VA Medical Centers Managing Overweight/Obese Veterans Everywhere (MOVE!). We also aim to introduce technology as a way to overcome systemic barriers of traditional obesity treatment. Methods/Design: Veterans enrolled in the MOVE! group at the Hines Hospital VAMC with BMI >= 25 and <= 40 and weigh < 400 pounds, experience chronic pain (>= 4 on the NRS-I scale for >= 6 months prior to enrollment) and are able to participate in a moderate intensity exercise program will be recruited and screened for eligibility. Participants will be randomized to receive either: a) MOVE! treatment alone (Standard Care) or b) Standard Care plus PDA (PDA+). Those randomized to PDA+ will record dietary intake, physical activity, and weight on the PDA. In addition, they will also record mood and pain intensity, and receive biweekly telephone support for the first 6-months of the 12-month study. All participants will attend in-person lab sessions every three months to complete questionnaires and for the collection of anthropomorphic data. Weight loss and decrease in pain level intensity are the primary outcomes. Discussion: The PDA+ trial represents an important step in understanding ways to improve the use of technology in obesity treatment. The trial will address barriers to obesity care by implementing effective behavioral components of a weight loss intervention and delivering high intensity, low cost obesity treatment. This RCT also tests an intervention approach supported by handheld technology in a population traditionally considered to have lower levels of technology literacy.
Issue Date: 2011-04-11
Publisher: BioMed Central
Citation Info: Duncan, J. M., Janke, E. A., Kozak, A. T., Roehrig, M., Russell, S. W., McFadden, H. G., Demott, A., Pictor, A., Hedeker, D., & Spring, B. 2011. PDA+: A Personal Digital Assistant for Obesity Treatment - An RCT testing the use of technology to enhance weight loss treatment for veterans. BMC Public Health, 11. DOI: 10.1186/1471-2458-11-223
Type: Article
Description: © 2011 Duncan et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The original version is available through BioMed Central at DOI: 10.1186/1471-2458-11-223.
ISSN: 1471-2458
Sponsor: This study is supported by VA Merit Review F442291 RRD-funded study at Hines VA Medical Center, Hines, IL to Dr. Spring. The development of the PDA tool used in this study was funded by an NHBLI grant HL075451.
Date Available in INDIGO: 2011-05-27

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