Document Detail

A comparison of Internet and print-based physical activity interventions.
MedLine Citation:
PMID:  17502536     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Physical activity interventions tailored to individual characteristics and delivered via print produce greater increases in activity compared with nontailored interventions and controls. Using the Internet to deliver a tailored physical activity intervention offers an alternative to print that might be available to larger populations at a lower cost. METHODS: Participants (N=249 adults; mean [SD] age, 44.5 [9.3] years; and mean [SD] body mass index [calculated as weight in kilograms divided by height in meters squared], 29.4 [6.1]) were randomized to 1 of 3 physical activity interventions: (1) motivationally tailored Internet (tailored Internet, n=81), (2) motivationally tailored print (tailored print, n=86); and (3) 6 researcher-selected Web sites available to the public (standard Internet, n=82). Participants in the tailored Internet and tailored print arms received the same tailored intervention content. Participants were assessed at baseline and at 6 and 12 months. RESULTS: At 6 months, participants in the tailored print arm reported a median of 112.5 minutes of physical activity per week, those in the tailored Internet arm reported 120.0 minutes, and those in the standard Internet arm reported 90.0 minutes (P=.15). At 12 months, the physical activity minutes per week were 90.0, 90.0, and 80.0 for those in the tailored print, tailored Internet, and standard Internet arms, respectively (P=.74). Results indicated no significant differences between the 3 arms. CONCLUSIONS: The use of tailored Internet, tailored print, and standard Internet as part of a behavior change program increased physical activity behavior similarly. Because the use of the Internet was not different from the print-based intervention, this may be an opportunity to reach more sedentary adults in a more cost-effective way. TRIAL REGISTRATION: Identifier: NCT00200317.
Bess H Marcus; Beth A Lewis; David M Williams; Shira Dunsiger; John M Jakicic; Jessica A Whiteley; Anna E Albrecht; Melissa A Napolitano; Beth C Bock; Deborah F Tate; Christopher N Sciamanna; Alfred F Parisi
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Archives of internal medicine     Volume:  167     ISSN:  0003-9926     ISO Abbreviation:  Arch. Intern. Med.     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-05-15     Completed Date:  2007-06-28     Revised Date:  2008-02-04    
Medline Journal Info:
Nlm Unique ID:  0372440     Medline TA:  Arch Intern Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  944-9     Citation Subset:  AIM; IM    
The Miriam Hospital and Brown Medical School, Centers for Behavioral and Preventive Medicine, Providence, RI 02903, USA.
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MeSH Terms
Communications Media*
Follow-Up Studies
Health Behavior*
Health Promotion / methods*
Middle Aged
Time Factors
Grant Support
Comment In:
Evid Based Nurs. 2008 Jan;11(1):13   [PMID:  18192518 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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