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Guo Y, Li K, Zhao Y, Wang C, Mo H, Li Y. Association between long-term sedentary behavior and depressive symptoms in U.S. adults. Sci Rep 2024; 14:5247. [PMID: 38438459 PMCID: PMC10912732 DOI: 10.1038/s41598-024-55898-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/28/2024] [Indexed: 03/06/2024] Open
Abstract
The study aimed to investigate the association between long-term sedentary behavior (LTSB) and depressive symptoms within a representative sample of the U.S. adult population. Data from NHANES 2017-2018 were used, encompassing information on demographics, depressive symptoms, physical activity (PA), and LTSB. Depressive symptoms were identified using the Patient Health Questionnaire (PHQ-9), with "depressive symptoms" defined as a PHQ-9 score of ≥ 5, and "moderate to severe depressive symptoms (MSDS)" defined as a PHQ-9 score of ≥ 10. PA and LTSB were assessed through the Global Physical Activity Questionnaire, where LTSB was interpreted as sedentary time ≥ 600 min. Restricted Cubic Spline (RCS) curves were utilized to observe potential nonlinear relationships. Binary Logistic regressions were conducted to analyze the associations. A total of 4728 participants (mean age 51.00 ± 17.49 years, 2310 males and 2418 females) were included in the study. Among these individuals, 1194 (25.25%) displayed depressive symptoms, with 417 (8.82%) exhibiting MSDS. RCS curves displayed increased risk of depressive symptoms with prolonged sedentary duration. Logistic regression models indicated significant associations between LTSB and depressive symptoms (OR 1.398, 95% CI 1.098-1.780), and LTSB and MSDS (OR 1.567, 95% CI 1.125-2.183), after adjusting for covariates. These findings suggest that LTSB may act as a potential risk factor for both depressive symptoms and MSDS in the studied population.
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Affiliation(s)
- Yuyang Guo
- Department of Physical Education, Zhengzhou Railway Vocational and Technical College, Zhengzhou, Henan, People's Republic of China
| | - Kaixin Li
- Zhengzhou University, Zhengzhou, Henan, People's Republic of China
- Synergetic Innovation Center of Kinesis and Health, School of Physical Education (Main Campus), Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yue Zhao
- Zhengzhou University, Zhengzhou, Henan, People's Republic of China
- Synergetic Innovation Center of Kinesis and Health, School of Physical Education (Main Campus), Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Changhong Wang
- The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, People's Republic of China
| | - Hongfei Mo
- Zhengzhou University, Zhengzhou, Henan, People's Republic of China.
- Synergetic Innovation Center of Kinesis and Health, School of Physical Education (Main Campus), Zhengzhou University, Zhengzhou, Henan, People's Republic of China.
- The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China.
| | - Yan Li
- Zhengzhou University, Zhengzhou, Henan, People's Republic of China.
- The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China.
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Jung D, Choi J, Park S, Choi KH. Improving older adults' autobiographical memory through video-conferencing intervention during COVID-19. Int J Geriatr Psychiatry 2023; 38:e5973. [PMID: 37526311 DOI: 10.1002/gps.5973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/11/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Autobiographical memory (AM) is valuable not only as an indicator of mental health and cognitive function, but also as a target of therapeutic intervention for older adults. In the context of the COVID-19 pandemic, the demand for online psychosocial interventions and assessment services has sharply increased. Thus, the present study examined the effectiveness of videoconferencing AM (vAM) intervention using the Ecological Momentary Assessment (EMA) method in addition to the traditional paper-and-pencil assessment among samples of community dwelling older adults. METHODS Twenty-seven older adults (aged 66-86 years) participated in a vAM intervention composed of 4 weekly 90-min sessions. The primary outcome was AM specificity, with secondary outcomes as depressive symptom and cognitive function, measured before and after the intervention. In addition, daily emotions were measured through EMA over 4 weeks of intervention. The EMA data were analyzed using a multilevel analysis. RESULTS The results showed low dropout rates (7%) and high EMA response rates (85%). Autobiographical memory specificity increased (Cohen's d = 0.678), and the level of depression declined significantly (Cohen's d = 0.375) after the program. Additionally, measures assessing cognitive function, such as Seoul Verbal Learning Test and DSC (Digit Symbol Coding), showed significant improvements. The EMA results indicated a decrease in the intensity and proportion of negative emotions experienced during the program. CONCLUSIONS This study is the first to utilize videoconferencing and EMA to deliver an AM intervention targeting older adults. The intervention was effective in improving mental health and cognitive function, including AM in older adults. Additionally, EMA was found to be a feasible tool for use in older adults.
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Affiliation(s)
- Dawoon Jung
- School of Psychology, Korea University, Seoul, Republic of Korea
| | - Juhee Choi
- School of Psychology, Korea University, Seoul, Republic of Korea
| | - Soohyun Park
- School of Psychology, Korea University, Seoul, Republic of Korea
| | - Kee-Hong Choi
- School of Psychology, Korea University, Seoul, Republic of Korea
- KU Mind Health Institute, Korea University, Seoul, Republic of Korea
- Mindeep Cognitive Behavioral Therapy (CBT) Center, Seoul, Republic of Korea
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Dauber S, Beacham A, West A, Devkota J, Barrie K, Thrul J. Ecological Momentary Assessment of Heavy Episodic Drinking in the Early Postpartum Period: A Feasibility Study. DRUG AND ALCOHOL DEPENDENCE REPORTS 2023; 7:100146. [PMID: 37012980 PMCID: PMC10066518 DOI: 10.1016/j.dadr.2023.100146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/14/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023]
Abstract
Background Postpartum mothers are at heightened risk for heavy episodic drinking (HED). Research with this population is critical to developing acceptable and effective tailored interventions, but new mothers who use alcohol are often reluctant to engage in research due to stigma and fear of child removal. This study examined feasibility of recruitment and ecological momentary assessment (EMA) in early postpartum mothers with histories of HED. Methods Participants were recruited via Facebook and Reddit and completed 14 days of EMA surveys. Baseline characteristics, recruitment feasibility, and EMA feasibility and acceptability were examined. Participants attended focus groups to further inform quantitative data. Results Reddit yielded a larger proportion of eligible individuals than Facebook, and 86% of the final enroled sample was recruited via Reddit. The average compliance rate of 75% is in line with other studies of similar populations. Half the sample reported alcohol use, and 78% reported the urge to drink at least once, supporting feasibility of EMA for collecting alcohol use data. Participants reported low burden and high acceptability of the study on both quantitative and qualitative measures. Baseline low maternal self-efficacy was associated with greater EMA compliance, and first-time mothers reported lower EMA burden compared to veteran mothers. College graduates, and participants with lower drinking refusal self-efficacy and greater alcohol severity were more likely to report alcohol use on EMA. Conclusions Future studies should consider Reddit as a recruitment strategy. Findings generally support feasibility and acceptability of EMA to assess HED in postpartum mothers.
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Affiliation(s)
- Sarah Dauber
- Partnership to End Addiction, 711 Third Avenue, 5th floor, New York, NY 10017, USA
- Corresponding author.
| | - Alexa Beacham
- Partnership to End Addiction, 711 Third Avenue, 5th floor, New York, NY 10017, USA
| | - Allison West
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Janardan Devkota
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kadjatu Barrie
- Partnership to End Addiction, 711 Third Avenue, 5th floor, New York, NY 10017, USA
| | - Johannes Thrul
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
- Centre for Alcohol Policy Research, La Trobe University, Melbourne, Australia
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Clark DO, Keith NR, Ofner S, Hackett J, Li R, Agarwal N, Tu W. Environments and situations as correlates of eating and drinking among women living with obesity and urban poverty. Obes Sci Pract 2022; 8:153-163. [PMID: 35388340 PMCID: PMC8976545 DOI: 10.1002/osp4.557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 08/16/2021] [Accepted: 08/17/2021] [Indexed: 11/29/2022] Open
Abstract
Objective One path to improving weight management may be to lessen the self‐control burden of physical activity and healthier food choices. Opportunities to lessen the self‐control burden might be uncovered by assessing the spatiotemporal experiences of individuals in daily context. This report aims to describe the time, place, and social context of eating and drinking and 6‐month weight change among 209 midlife women (n = 113 African–American) with obesity receiving safety‐net primary care. Methods Participants completed baseline and 6‐month weight measures, observations and interviews regarding obesogenic cues in the home environment, and up to 12 ecological momentary assessments (EMA) per day for 30 days inquiring about location, social context, and eating and drinking. Results Home was the most common location (62%) at times of EMA notifications. Participants reported “yes” to eating or drinking at the time of nearly one in three (31.1% ± 13.2%) EMA notifications. Regarding social situations, being alone was significantly associated with less frequent eating and drinking (OR = 0.75) unless at work in which case being alone was significantly associated with a greater frequency of eating or drinking (OR = 1.43). At work, eating was most common late at night, whereas at home eating was most frequent in the afternoon and evening hours. However, eating and drinking frequency was not associated with 6‐month weight change. Conclusions Home and work locations, time of day, and whether alone may be important dimensions to consider in the pursuit of more effective weight loss interventions. Opportunities to personalize weight management interventions, whether digital or human, and lessen in‐the‐moment self‐control burden might lie in identifying times and locations most associated with caloric consumption. Clinical trial registration: NCT03083964 in clinicaltrials.gov
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Affiliation(s)
- Daniel O. Clark
- Indiana University Center for Aging Research Indianapolis Indiana USA
- Regenstrief Institute, Inc. Indianapolis Indiana USA
- Department of Medicine Division of General Internal Medicine and Geriatrics Indiana University School of Medicine Indianapolis Indiana USA
| | - NiCole R. Keith
- Indiana University Center for Aging Research Indianapolis Indiana USA
- Regenstrief Institute, Inc. Indianapolis Indiana USA
| | - Susan Ofner
- Department of Biostatistics Indiana University Richard M. Fairbanks School of Public Health Indianapolis Indiana USA
| | - Jason Hackett
- Regenstrief Institute, Inc. Indianapolis Indiana USA
| | - Ruohong Li
- Department of Biostatistics Indiana University Richard M. Fairbanks School of Public Health Indianapolis Indiana USA
| | - Neeta Agarwal
- Department of Medicine Division of General Internal Medicine and Geriatrics Indiana University School of Medicine Indianapolis Indiana USA
| | - Wanzhu Tu
- Regenstrief Institute, Inc. Indianapolis Indiana USA
- Department of Medicine Division of General Internal Medicine and Geriatrics Indiana University School of Medicine Indianapolis Indiana USA
- Department of Biostatistics Indiana University Richard M. Fairbanks School of Public Health Indianapolis Indiana USA
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Elliott A, Lang S, Truby H, Brennan L, Gibson S. Tackling the challenge of treating obesity using design research methods: A scoping review. Obes Rev 2022; 23:e13360. [PMID: 34545669 DOI: 10.1111/obr.13360] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/06/2021] [Accepted: 08/20/2021] [Indexed: 01/10/2023]
Abstract
Design research methods, including user-centered design, human-centered design, and design thinking, are iterative processes and frameworks that engage stakeholders to inform the design of initiatives, programs, or research interventions. Design research methods are not yet widely applied in healthcare. To date, there is a limited understanding of how design research methodologies can be applied to develop client-centered weight loss interventions. This scoping review explores the extent, range, and nature of research projects that used design research methods to guide the development of an obesity treatment intervention. A systematic search of eight databases identified projects that used design research methods to develop a weight loss intervention or strategy. The method and practical application of design research processes for each eligible article were extracted and explored. Design research methods were used to generate ideas or guide the development of a mobile application (n = 6), mHealth device (n = 1), eHealth solution (n = 1), health promotion program (n = 1), or patient-clinician communication tools (n = 2). There was considerable variation in the application of design research processes between studies. Design research methods may provide an iterative, flexible framework to facilitate the development of client-centered, inclusive interventions and strategies. Design research methods may support research teams to move away from the one-size-fits-all approach to obesity treatment.
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Affiliation(s)
- Andrea Elliott
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences, Monash University, Clayton, Victoria, Australia
| | - Sarah Lang
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences, Monash University, Clayton, Victoria, Australia
| | - Helen Truby
- School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Linda Brennan
- School of Media and Communication, RMIT University, Melbourne, Victoria, Australia
| | - Simone Gibson
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences, Monash University, Clayton, Victoria, Australia
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Dauber S, Beacham A, Hammond C, West A, Thrul J. Adaptive Text Messaging for Postpartum Risky Drinking: Conceptual Model and Protocol for an Ecological Momentary Assessment Study (Preprint). JMIR Res Protoc 2022; 11:e36849. [PMID: 35373778 PMCID: PMC9016512 DOI: 10.2196/36849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/01/2022] [Accepted: 03/01/2022] [Indexed: 11/13/2022] Open
Abstract
Background Risky drinking is prevalent among women of childbearing age. Although many women reduce their drinking during pregnancy, more than half return to prepregnancy levels during the early postpartum period. Risky drinking in new mothers may be associated with negative child and maternal health outcomes; however, new mothers are unlikely to seek treatment for risky drinking because of stigma and fear of child protective service involvement. SMS text messaging is a promising approach for reaching non–treatment-seeking new mothers at risk because of risky drinking. SMS text messaging interventions (TMIs) are empirically supported for alcohol use, but a tailored intervention for new mothers does not exist. This study aims to fill this gap by developing a just-in-time adaptive TMI for postpartum risky drinking. Objective The objectives of this paper are to present a preliminary conceptual model of postpartum risky drinking and describe the protocol for conducting an ecological momentary assessment (EMA) study with new mothers to inform the refinement of the conceptual model and development of the TMI. Methods This paper presents a preliminary conceptual model of postpartum risky drinking based on the motivational model of alcohol use, social cognitive theory, and temporal self-regulation theory. The model proposes three primary intervention targets: motivation, self-efficacy, and self-regulation. Theoretical and empirical literature in support of the conceptual model is described. The paper also describes procedures for a study that will collect EMA data from 30 participants recruited via social media and the perinatal Central Intake system of New Jersey. Following the baseline assessment, EMA surveys will be sent 5 times per day for 14 days. The assessment instruments and data analysis procedures are described. Results Recruitment is scheduled to begin in January 2022 and is anticipated to conclude in March 2022. Study results are estimated to be published in July 2022. Conclusions The study findings will enhance our understanding of daily and momentary fluctuations in risk and protective factors for risky drinking during the early postpartum period. The findings will be used to refine the conceptual model and inform the development of the TMI. The next steps for this work include the development of intervention components via an iterative participatory design process and testing of the resulting intervention in a pilot microrandomized trial. International Registered Report Identifier (IRRID) PRR1-10.2196/36849
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Affiliation(s)
- Sarah Dauber
- Partnership to End Addiction, New York, NY, United States
| | - Alexa Beacham
- Partnership to End Addiction, New York, NY, United States
| | - Cori Hammond
- Partnership to End Addiction, New York, NY, United States
| | - Allison West
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Johannes Thrul
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, United States
- Centre for Alcohol Policy Research, La Trobe University, Melbourne, Australia
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Emerson MR, Buckland S, Lawlor MA, Dinkel D, Johnson DJ, Mickles MS, Fok L, Watanabe-Galloway S. Addressing and evaluating health literacy in mHealth: a scoping review. Mhealth 2022; 8:33. [PMID: 36338314 PMCID: PMC9634204 DOI: 10.21037/mhealth-22-11] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 09/23/2022] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Recent surveys have revealed many adults have basic or below basic health literacy, which is linked to medical errors, increased illness, and compromised public health. Health literacy as a concept is multi-faceted extending beyond the individual to include social structures and the context in which health information is being accessed. Delivering health information via mobile devices (mHealth) expands the amount of information available while presenting challenges to ensuring these materials are suitable for a variety of literacy needs. The aims of this study are to discover how health literacy is addressed and evaluated in mHealth app development. METHODS A scoping review of 5 peer-reviewed databases was conducted. Eligible articles were written in English, addressed general literacy or mHealth/digital/eHealth literacy, and collected literacy information in order to incorporate literacy into the design and/or modification of an app or collected literacy information to describe the population being studied. The "Health Literacy Online" (HLO) United States (U.S.) government guide was used as a framework. RESULTS Thirty-two articles were reviewed. Articles included health literacy recommendations for all HLO categories and some recommendations not aligned with these categories. Most articles addressed health literacy using specific HLO categories though none incorporated every HLO category. The most common categories addressed engagement and testing of mHealth content. Though several studies addressed health literacy through a formal assessment tool, most did not. Evaluation of health literacy in mHealth was end-user focused and did not extensively evaluate content for fit to a variety of individuals with limited health literacy. CONCLUSIONS The recommendations seen consistently in our results in conjunction with formal HLO categories can act as beginning steps towards development of a health literacy evaluation tool for mHealth apps themselves. It is clear efforts are being made to reduce barriers to using mHealth for those with literacy deficits, however, it was also clear that this space has room to be more pragmatic in evaluation of mHealth tools for literacy. End user engagement in design and testing is necessary in future mHealth literacy tool development.
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Affiliation(s)
| | - Sydney Buckland
- College of Nursing, University of Nebraska Medical Center, Omaha, NE, USA
| | - Maxwell A. Lawlor
- College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Danae Dinkel
- College of Education Health and Human Sciences, University of Nebraska, Omaha, NE, USA
| | - David J. Johnson
- Department of Psychiatry & Behavioral Science, Mercer University School of Medicine, Atlanta, GA, USA
| | - Maria S. Mickles
- College of Public Health University of Nebraska Medical Center, Omaha, NE, USA
| | - Louis Fok
- College of Public Health University of Nebraska Medical Center, Omaha, NE, USA
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Göttgens I, Oertelt-Prigione S. The Application of Human-Centered Design Approaches in Health Research and Innovation: A Narrative Review of Current Practices. JMIR Mhealth Uhealth 2021; 9:e28102. [PMID: 34874893 PMCID: PMC8691403 DOI: 10.2196/28102] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 07/16/2021] [Accepted: 10/21/2021] [Indexed: 12/14/2022] Open
Abstract
Background Human-centered design (HCD) approaches to health care strive to support the development of innovative, effective, and person-centered solutions for health care. Although their use is increasing, there is no integral overview describing the details of HCD methods in health innovations. Objective This review aims to explore the current practices of HCD approaches for the development of health innovations, with the aim of providing an overview of the applied methods for participatory and HCD processes and highlighting their shortcomings for further research. Methods A narrative review of health research was conducted based on systematic electronic searches in the PubMed, CINAHL, Embase, Cochrane Library, Web of Science, PsycINFO, and Sociological Abstracts (2000-2020) databases using keywords related to human-centered design, design thinking (DT), and user-centered design (UCD). Abstracts and full-text articles were screened by 2 reviewers independently based on predefined inclusion criteria. Data extraction focused on the methodology used throughout the research process, the choice of methods in different phases of the innovation cycle, and the level of engagement of end users. Results This review summarizes the application of HCD practices across various areas of health innovation. All approaches prioritized the user’s needs and the participatory and iterative nature of the design process. The design processes comprised several design cycles during which multiple qualitative and quantitative methods were used in combination with specific design methods. HCD- and DT-based research primarily targeted understanding the research context and defining the problem, whereas UCD-based work focused mainly on the direct generation of solutions. Although UCD approaches involved end users primarily as testers and informants, HCD and DT approaches involved end users most often as design partners. Conclusions We have provided an overview of the currently applied methodologies and HCD guidelines to assist health care professionals and design researchers in their methodological choices. HCD-based techniques are challenging to evaluate using traditional biomedical research methods. Previously proposed reporting guidelines are a step forward but would require a level of detail that is incompatible with the current publishing landscape. Hence, further development is needed in this area. Special focus should be placed on the congruence between the chosen methods, design strategy, and achievable outcomes. Furthermore, power dimensions, agency, and intersectionality need to be considered in co-design sessions with multiple stakeholders, especially when including vulnerable groups.
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Affiliation(s)
- Irene Göttgens
- Department of Primary and Community Care, Radboud University Medical Center, Nijmegen, Netherlands
| | - Sabine Oertelt-Prigione
- Department of Primary and Community Care, Radboud University Medical Center, Nijmegen, Netherlands
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Daryabeygi-Khotbehsara R, Shariful Islam SM, Dunstan D, McVicar J, Abdelrazek M, Maddison R. Smartphone-Based Interventions to Reduce Sedentary Behavior and Promote Physical Activity Using Integrated Dynamic Models: Systematic Review. J Med Internet Res 2021; 23:e26315. [PMID: 34515637 PMCID: PMC8477296 DOI: 10.2196/26315] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/29/2020] [Accepted: 04/30/2021] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Traditional psychological theories are inadequate to fully leverage the potential of smartphones and improve the effectiveness of physical activity (PA) and sedentary behavior (SB) change interventions. Future interventions need to consider dynamic models taken from other disciplines, such as engineering (eg, control systems). The extent to which such dynamic models have been incorporated in the development of interventions for PA and SB remains unclear. OBJECTIVE This review aims to quantify the number of studies that have used dynamic models to develop smartphone-based interventions to promote PA and reduce SB, describe their features, and evaluate their effectiveness where possible. METHODS Databases including PubMed, PsycINFO, IEEE Xplore, Cochrane, and Scopus were searched from inception to May 15, 2019, using terms related to mobile health, dynamic models, SB, and PA. The included studies involved the following: PA or SB interventions involving human adults; either developed or evaluated integrated psychological theory with dynamic theories; used smartphones for the intervention delivery; the interventions were adaptive or just-in-time adaptive; included randomized controlled trials (RCTs), pilot RCTs, quasi-experimental, and pre-post study designs; and were published from 2000 onward. Outcomes included general characteristics, dynamic models, theory or construct integration, and measured SB and PA behaviors. Data were synthesized narratively. There was limited scope for meta-analysis because of the variability in the study results. RESULTS A total of 1087 publications were screened, with 11 publications describing 8 studies included in the review. All studies targeted PA; 4 also included SB. Social cognitive theory was the major psychological theory upon which the studies were based. Behavioral intervention technology, control systems, computational agent model, exploit-explore strategy, behavioral analytic algorithm, and dynamic decision network were the dynamic models used in the included studies. The effectiveness of quasi-experimental studies involved reduced SB (1 study; P=.08), increased light PA (1 study; P=.002), walking steps (2 studies; P=.06 and P<.001), walking time (1 study; P=.02), moderate-to-vigorous PA (2 studies; P=.08 and P=.81), and nonwalking exercise time (1 study; P=.31). RCT studies showed increased walking steps (1 study; P=.003) and walking time (1 study; P=.06). To measure activity, 5 studies used built-in smartphone sensors (ie, accelerometers), 3 of which used the phone's GPS, and 3 studies used wearable activity trackers. CONCLUSIONS To our knowledge, this is the first systematic review to report on smartphone-based studies to reduce SB and promote PA with a focus on integrated dynamic models. These findings highlight the scarcity of dynamic model-based smartphone studies to reduce SB or promote PA. The limited number of studies that incorporate these models shows promising findings. Future research is required to assess the effectiveness of dynamic models in promoting PA and reducing SB. TRIAL REGISTRATION International Prospective Register of Systematic Reviews (PROSPERO) CRD42020139350; https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=139350.
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Affiliation(s)
| | | | - David Dunstan
- Physical Activity Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia
- Behaviour, Environment and Cognition Research Program, Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| | - Jenna McVicar
- Institute for Physical Activity and Nutrition, Deakin University, Geelong, Australia
| | | | - Ralph Maddison
- Institute for Physical Activity and Nutrition, Deakin University, Geelong, Australia
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