Effect of adherence to self-monitoring of diet and physical activity on weight loss in a technology-supported behavioral intervention

Wang, J and Sereika, SM and Chasens, ER and Ewing, LJ and Matthews, JT and Burke, LE (2012) Effect of adherence to self-monitoring of diet and physical activity on weight loss in a technology-supported behavioral intervention. Patient Preference and Adherence, 6. 221 - 226.

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Abstract

Background: Examination of mediating behavioral factors could explain how an intervention works and thus provide guidance to optimize behavioral weight-loss programs. This study examined the mediating role of adherence to self-monitoring of diet and physical activity on weight loss in a behavioral weight-loss trial testing the use of personal digital assistants (PDA) for self-monitoring. Methods: Mediation analysis was conducted to examine the possible mediating role of adherence to self-monitoring of diet and physical activity between treatments using varying self-monitoring methods (paper record, PDA, and PDA with daily tailored feedback messages) and weight loss. Findings: The sample (N = 210) was predominantly white (78%) and female (85%). Compared to a paper record, using a PDA for self-monitoring diet (P = 0.027) and physical activity (P = 0.014) had significant direct effects on weight loss at 12 months, as well as a significant indirect effect on outcomes through improved adherence to self-monitoring (PS < 0.001). Receiving an automated daily feedback message via PDA only had a significant indirect effect on weight through self-monitoring adherence to diet (P = 0.004) and physical activity (P = 0.002). Conclusions: Adherence to self-monitoring of diet and physical activity is important as the underlying mechanism in this technology-supported behavioral weight-loss intervention. © 2012 Wang et al, publisher and licensee Dove Medical Press Ltd.

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Details

Item Type:	Article
Status:	Published
Creators/Authors:	Creators Email Pitt Username ORCID Wang, J Sereika, SM ssereika@pitt.edu SSEREIKA 0000-0002-7840-1352 Chasens, ER Ewing, LJ lje1@pitt.edu LJE1 Matthews, JT jtmatt@pitt.edu JTMATT Burke, LE lbu100@pitt.edu LBU100 0000-0003-2434-9867
Date:	1 December 2012
Date Type:	Publication
Journal or Publication Title:	Patient Preference and Adherence
Volume:	6
Page Range:	221 - 226
DOI or Unique Handle:	10.2147/ppa.s28889
Schools and Programs:	School of Nursing > Nursing
Refereed:	Yes
Other ID:	NLM PMC3333811
PubMed Central ID:	PMC3333811
PubMed ID:	22536058
Date Deposited:	24 Sep 2012 19:51
Last Modified:	06 Oct 2023 10:56
URI:	http://d-scholarship.pitt.edu/id/eprint/14307

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