Effect of adherence to self-monitoring of diet and physical activity on weight loss in a technology-supported behavioral intervention
Open accessAbstract
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 (P(S) < 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.
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References 31 · Cited by 95
Research works printed but not linked: 13
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- Authors
- Wang, J., Sereika, S., Chasens, Ewing, Matthews, & Burke, L.
- Affiliations
- The University of Texas Health Science Center at Houston (US)
- University of Pittsburgh (US)
- Corresponding author
- Wang, Jing
- Venue
- Patient Preference and Adherence
- Publisher
- Informa UK Limited
- Published
- 2012-03
- Volume
- 6
- Pages
- 221
- ISSN
- 1177-889X (ISSN-L)
- PMC
- PMC3333811
- OpenAlex
- W2112417556
- Cited by
- 95
- References
- 31
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 5 · 2023: 2 · 2022: 10 · 2021: 10 · 2020: 8 · 2019: 10 · 2018: 10 · 2017: 4 · 2016: 11 · 2015: 10 · 2014: 8 · 2013: 4
- FWCI
- 12.50
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Patient Preference and Adherence (publishedVersion, cc-by-nc)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- D-Scholarship@Pitt (University of Pittsburgh) (acceptedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Dove Medical Press (Taylor and Francis Group) (submittedVersion, cc-by-nc)
- Funders
- University of Pittsburgh (UL1RR024153, RR024153)
- Deutsches Krebsforschungszentrum
- Georgia Clinical and Translational Science Alliance (UL‐1 RR024153)
- National Institutes of Health (RR024153)
- National Institute of Nursing Research (P30NR003924, K24NR010742)
- National Institute of Diabetes and Digestive and Kidney Diseases (R01DK071817)
- National Center for Research Resources (RR 000056, RR-024153, M01RR000056, UL1RR024153)
- Topics
- Health Sciences › Health Professions › General Health Professions › Mobile Health and mHealth Applications
- Social Sciences › Psychology › Applied Psychology › Behavioral Health and Interventions
- Physical Sciences › Computer Science › Human-Computer Interaction › Innovative Human-Technology Interaction
- Keywords
- weight loss, self-monitoring, adherence, personal digital assistants, technology-based interventions, behavioral weight loss, diet, physical activity, mediation analysis
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