Browsing by Author "Fukuoka, Yoshimi"
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- ItemApplying Natural Language Processing to Understand Motivational Profiles for Maintaining Physical Activity After a Mobile App and Accelerometer-Based Intervention: The mPED Randomized Controlled Trial...(0000-00-00) Fukuoka, Yoshimi; Lindgren, Teri G; Mintz, Yonatan Dov; Hooper, Julie; Aswani, AnilBACKGROUND Regular physical activity is associated with reduced risk of chronic illnesses Despite various types of successful physical activity interventions maintenance of activity over the long term is extremely challenging OBJECTIVE The aims of this original paper are to 1 describe physical activity engagement post intervention 2 identify motivational profiles using natural language processing NLP and clustering techniques in a sample of women who completed the physical activity intervention and 3 compare sociodemographic and clinical data among these identified cluster groups METHODS In this cross sectional analysis of 203 women completing a 12 month study exit telephone interview in the mobile phone based physical activity education study were examined The mobile phone based physical activity education study was a randomized controlled trial to test the efficacy of the app and accelerometer intervention and its sustainability over a 9 month period All subjects returned the accelerometer and stopped accessing the app at the last 9 month research office visit Physical engagement and motivational profiles were assessed by both closed and open ended questions such as Since your 9 month study visit has your physical activity been more less or about the same compared to the first 9 months of the study and What motivates you the most to be physically active NLP and cluster analysis were used to classify motivational profiles Descriptive statistics were used to compare participants baseline characteristics among identified groups RESULTS Approximately half of the 2 intervention groups Regular and Plus reported that they were still wearing an accelerometer and engaging in brisk walking as they were directed during the intervention phases These numbers in the 2 intervention groups were much higher than the control group overall P 01 and P 003 respectively Three clusters were identified through NLP and named as the Weight Loss group n 19 the Illness Prevention group n 138 and the Health Promotion group n 46 The Weight Loss group was significantly younger than the Illness Prevention and Health Promotion groups overall PUnder 001 The Illness Prevention group had a larger number of Caucasians as compared to the Weight Loss group P 001 which was composed mostly of those who identified as African American Hispanic or mixed race Additionally the Health Promotion group tended to have lower BMI scores compared to the Illness Prevention group overall P 02 However no difference was noted in the baseline moderate to vigorous intensity activity level among the 3 groups overall P 05 CONCLUSIONS The findings could be relevant to tailoring a physical activity maintenance intervention Furthermore the findings from NLP and cluster analysis are useful methods to analyze short free text to differentiate motivational profiles As more sophisticated NL tools are developed in the future the potential of NLP application in behavioral research will broaden TRIAL REGISTRATION ClinicalTrials gov NCT01280812 https clinicaltrials gov ct2 show NCT01280812 Archived by WebCite at http www webcitation org 70IkGagAJ
- ItemDigital technology ownership, usage, and factors predicting downloading health apps among caucasian, filipino, korean, and latino americans: the digital link to health survey.(2014-10-23) Bender, Melinda S; Choi, JiWon; Arai, Shoshana; Paul, Steven M; Gonzalez, Prisila; Fukuoka, YoshimiInterventions using mobile health mHealth apps have been effective in promoting healthy lifestyle behavior change and hold promise in improving health outcomes to thereby reduce health disparities among diverse racial ethnic populations particularly Latino and Asian American subgroups Filipinos and Koreans at high risk for diabetes and cardiovascular disease Latinos and Asian Americans are avid digital technology owners and users However limited datasets exist regarding digital technology ownership and use especially among specific racial ethnic subgroups Such information is needed to inform development of culturally tailored mHealth tools for use with lifestyle interventions promoting healthy behaviors for these at risk racial ethnic populations
- ItemInnovation to motivation--pilot study of a mobile phone intervention to increase physical activity among sedentary women.(2010-09-14) Fukuoka, Yoshimi; Vittinghoff, Eric; Jong, So Son; Haskell, WilliamOBJECTIVES This uncontrolled pilot study assessed changes in pedometer measured step counts and self reported physical activity during a 3 week mobile phone based intervention We also explored whether age BMI and psychosocial factors were associated with changes in step counts METHODS Forty one sedentary adult women in San Francisco California were asked to report their pedometer steps using a study supplied mobile phone from June to September 2008 In the second and third weeks daily prompts delivered by the mobile phone encouraged participants to increase steps by 20 from the previous week RESULTS Mean age was 48 years Average daily total steps increased by approximately 800 or 15 over three weeks pUnder0 001 Lower BMI no antidepressant use and lower self reported health status were associated with higher step counts at baseline Improvements in self reported will power were associated with increases in step counts pUnder0 001 Neither age p 0 55 nor BMI p 0 13 was significantly associated with changes in activity over the 3 weeks CONCLUSIONS The intervention appeared to motivate sedentary women to increase their physical activity A randomized controlled clinical trial is warranted and feasible
- ItemThe mPED randomized controlled clinical trial: applying mobile persuasive technologies to increase physical activity in sedentary women protocol.(2012-03-07) Fukuoka, Yoshimi; Komatsu, Judith; Suarez, Larry; Vittinghoff, Eric; Haskell, William; Noorishad, Tina; Pham, KristinBACKGROUND Despite the significant health benefits of regular physical activity approximately half of American adults particularly women and minorities do not meet the current physical activity recommendations Mobile phone technologies are readily available easily accessible and may provide a potentially powerful tool for delivering physical activity interventions However we need to understand how to effectively apply these mobile technologies to increase and maintain physical activity in physically inactive women The purpose of this paper is to describe the study design and protocol of the mPED mobile phone based physical activity education randomized controlled clinical trial that examines the efficacy of a 3 month mobile phone and pedometer based physical activity intervention and compares two different 6 month maintenance interventions METHODS A randomized controlled trial RCT with three arms 1 PLUS 3 month mobile phone and pedometer based physical activity intervention and 6 month mobile phone diary maintenance intervention 2 REGULAR 3 month mobile phone and pedometer based physical activity intervention and 6 month pedometer maintenance intervention and 3 CONTROL pedometer only but no intervention will be conducted A total of 192 physically inactive women who meet all inclusion criteria and successfully complete a 3 week run in will be randomized into one of the three groups The mobile phone serves as a means of delivering the physical activity intervention setting individualized weekly physical activity goals and providing self monitoring activity diary immediate feedback and social support The mobile phone also functions as a tool for communication and real time data capture The primary outcome is objectively measured physical activity DISCUSSION If efficacy of the intervention with a mobile phone is demonstrated the results of this RCT will be able to provide new insights for current behavioral sciences and mHealth TRIAL REGISTRATION ClinicalTrials gov NCTO1280812
- ItemNew insights into compliance with a mobile phone diary and pedometer use in sedentary women.(2011-04-13) Fukuoka, Yoshimi; Kamitani, Emiko; Dracup, Kathleen; Jong, So SonOBJECTIVES The purposes of this study were 1 to determine compliance with a pedometer and mobile phone based physical activity diary and 2 to assess concordance between self reported daily steps recorded and transmitted by a mobile phone and pedometer measured daily steps in sedentary women METHODS In this 3 week pilot clinical study 41 sedentary women who met all inclusion criteria were recruited from local communities We asked the participants to wear a pedometer every day and to report their daily steps using a mobile phone diary each night before retiring In the first week women were asked to monitor their daily steps baseline steps In the second and third weeks they were asked to increase their steps by 20 from the previous week Although the pedometer can automatically store the most recent 41 days performance the participants were not informed of this function of the pedometer RESULTS Overall compliance was 93 8 with pedometer use and 88 3 with the mobile phone physical activity diary Bland Altman plots showed that the agreement between self reported daily steps by mobile phone diary and pedometer recorded daily steps from week 1 to week 3 was high CONCLUSION The combination of a pedometer and a mobile phone diary may enhance the quality of self reported data in clinical studies
- ItemQualitative exploration of the acceptability of a mobile phone and pedometer-based physical activity program in a diverse sample of sedentary women.(2012-04-19) Fukuoka, Yoshimi; Lindgren, Teri; Jong, SosonOBJECTIVES The objectives of this paper were to explore the acceptability of components of a mobile phone pedometer based physical activity program and to understand motivators and barriers to increase physical activity in a diverse sample of sedentary women DESIGN AND SAMPLE Face to face semi structured interviews were conducted following a 3 week pilot mobile phone pedometer based physical activity intervention Forty one sedentary women participated in the study MEASURES Subjects were interviewed using a semi structured interview guide A qualitative description method was used to thematically analyze the interviews Two investigators reviewed the transcripts independently and identified codes based on the main concerns in the interview questions RESULTS Three themes emerged from qualitative data shedding light on the perceived acceptability and usefulness of a mobile phone pedometer based intervention 1 Monitor me mobile phone pedometer as self monitoring tools 2 Motivate me cycle of feedback in goal setting and usefulness uselessness of daily random messages 3 Mobilize me engaging and adapting physical activity to fit one s own lifestyle CONCLUSION Mobile phone and pedometer based physical activity programs might be helpful in keeping sedentary women engaged and motivated to increase their physical activity A randomized controlled trial of this intervention is warranted
- ItemReal-time social support through a mobile virtual community to improve healthy behavior in overweight and sedentary adults: a focus group analysis.(2011-07-14) Fukuoka, Yoshimi; Kamitani, Emiko; Bonnet, Kemberlee; Lindgren, TeriBACKGROUND The onset of type 2 diabetes mellitus can be prevented or delayed by lifestyle changes Communication technologies such as a mobile phone can be used as a means of delivering these lifestyle changes OBJECTIVES The purposes of this analysis were to explore applicability of potential components of a mobile phone based healthy lifestyle program and to understand motivators and barriers to continued engagement in a mobile phone healthy lifestyle program METHODS We conducted 6 focus groups 4 female and 2 male groups in May and June 2010 with 35 focus group participants The qualitative data were analyzed by 3 researchers using a qualitative description method in an ATLAS ti software program Inclusion criteria for enrollment in a focus group were as follows 1 being aged from 30 to 69 years 2 speaking and reading English 3 having a sedentary lifestyle at work or during leisure time screened by the Brief Physical Activity Survey questionnaire and 4 having a body mass index BMI 25 kg m 2 Asian 23 kg m 2 based on self reported weight and height or 5 having a self reported prediabetic condition RESULTS The mean age was 51 SD 10 6 years 54 n 19 were white 71 n 25 used a mobile phone at least once a week during the last month prior to the study enrollment and mean BMI was 32 5 SD 6 5 kg m 2 In the qualitative analyses the following 4 major themes and their subthemes emerged 1 real time social support real time peer support from participants who are similarly engaged in a diet or physical activity program and professional support from health care providers or a researcher 2 tailoring of mobile phone programs 3 self monitoring and motivation and 4 potential barriers and sustainability of the program fear of failing age and mobile technologies and loss of interest over time CONCLUSIONS Participants from a wide range of age and racial groups expressed interest in a mobile phone based lifestyle program Such a program that incorporates the themes that we identified may be able to help motivate participants to increase their physical activity and to improve their diet
- ItemUsing mobile technology for cardiac rehabilitation: a review and framework for development and evaluation.(2013-11-04) Beatty, Alexis L; Fukuoka, Yoshimi; Whooley, Mary A