Cited by 161Physical Activity and HealthMobile Health and mHealth ApplicationsContext-Aware Activity Recognition Systems

Promoting physical activity through hand-held computer technology

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King, Abby C., Ahn, David K., Oliveira, Brian M., Atienza, Audie A., Castro, Cynthia M., Gardner, Christopher D.·2008·American Journal of Preventive Medicine

Abstract

Background Efforts to achieve population-wide increases in walking and similar moderate-intensity physical activities potentially can be enhanced through relevant applications of state-of-the-art interactive communication technologies. Yet few systematic efforts to evaluate the efficacy of hand-held computers and similar devices for enhancing physical activity levels have occurred. The purpose of this first-generation study was to evaluate the efficacy of a hand-held computer (i.e., personal digital assistant [PDA]) for increasing moderate intensity or more vigorous (MOD+) physical activity levels over 8 weeks in mid-life and older adults relative to a standard information control arm.Design Randomized, controlled 8-week experiment. Data were collected in 2005 and analyzed in 2006-2007.Setting/participants Community-based study of 37 healthy, initially underactive adults aged 50 years and older who were randomized and completed the 8-week study (intervention=19, control=18).Intervention Participants received an instructional session and a PDA programmed to monitor their physical activity levels twice per day and provide daily and weekly individualized feedback, goal setting, and support. Controls received standard, age-appropriate written physical activity educational materials.Main outcome measure Physical activity was assessed via the Community Healthy Activities Model Program for Seniors (CHAMPS) questionnaire at baseline and 8 weeks.Results Relative to controls, intervention participants reported significantly greater 8-week mean estimated caloric expenditure levels and minutes per week in MOD+ activity (p<0.04). Satisfaction with the PDA was reasonably high in this largely PDA-naive sample.Conclusions Results from this first-generation study indicate that hand-held computers may be effective tools for increasing initial physical activity levels among underactive adults.

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  1. [14]National Heart Lung and Blood Institute, American Heart Association. Exercise and your heart: a guide to physical activity. Washington DC: Government Printing Office; 1993. pp. 93–1677. NIH publication. [Google Scholar]
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Authors
King, A. C., Ahn, D. K., Oliveira, B. M., Atienza, A. A., Castro, C. M., & Gardner, C. D.
Affiliations
  • Stanford Medicine (US)
  • National Cancer Institute (US)
Venue
American Journal of Preventive Medicine
Publisher
Elsevier BV
Published
2008-02
Volume
34
Issue
2
Pages
138-142
ISSN
0749-3797 (ISSN-L)
OpenAlex
W2029550498
Cited by
160
References
26
Citations by year
2025: 4 · 2024: 2 · 2023: 3 · 2022: 6 · 2021: 7 · 2020: 9 · 2019: 10 · 2018: 7 · 2017: 12 · 2016: 14 · 2015: 16 · 2014: 12 · 2013: 25 · 2012: 8
FWCI
5.87
Type
journal article
Language
en
Open access
Locations
  • American Journal of Preventive Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Public Health Service (5T32 H107034)
  • National Heart, Lung, and Blood Institute (T32HL007034)
Topics
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Health Professions › General Health Professions › Mobile Health and mHealth Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
Keywords
physical activity promotion, personal digital assistants, moderate-to-vigorous physical activity, older adults, middle-aged adults, goal setting, energy expenditure, CHAMPS questionnaire, technology-based interventions
MeSH terms
Aged, Female, Health Promotion, Humans, Male, Middle Aged, Surveys and Questionnaires, United States, User-Computer Interface, Exercise, Computers, Handheld

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