User attitudes towards physical activity websites in a randomized controlled trial.
OBJECTIVE
To better understand the mixed findings regarding the efficacy of Internet-based physical activity interventions, we examined the use and usefulness of particular website components that may lead to improvements in intervention efficacy.


METHODS
Participants were sedentary individuals from a 12-month randomized controlled physical activity trial conducted in Providence, Rhode Island and Pittsburgh, Pennsylvania from 2003-2006. The present study included participants from the Tailored Internet arm (n=81; instantaneous web-based tailored feedback to participants) or the Standard Internet arm (n=82; websites currently available to the public). We obtained objective data via the intervention websites and subjective usefulness data via questionnaires.


RESULTS
The Tailored Internet arm logged onto their website significantly more times than the Standard Internet arm (median 50 vs. 38; p<.05). Among participants in the Tailored Internet arm, the self-monitoring feature (i.e., logging) followed by goal setting were rated as the most useful website components.


CONCLUSIONS
Logins in the current study were substantially higher compared to previous studies. Participants endorsed goal setting and self-monitoring as being most useful, which are critical components for health behavior change. Future studies should continue to examine these features and improve the perceived usefulness of other theory-based strategies.
Lewis
Beth
B
University of Minnesota-Twin Cities, Minneapolis, MN 55455, USA. blewis@umn.edu
Williams
David
D
Dunsiger
Shira
S
Sciamanna
Christopher
C
Whiteley
Jessica
J
Napolitano
Melissa
M
Bock
Beth
B
Jakicic
John
J
Getz
Michael
M
Marcus
Bess
B
D000293:Adolescent; D001290:Attitude; D015444:Exercise; D005246:Feedback; D005260:Female; D006801:Humans; D020407:Internet; D008297:Male; D010414:Pennsylvania; D012237:Rhode Island; D011795:Surveys and Questionnaires; D055815:Young Adult
Am J Health Promot. 2005 Nov-Dec;20(2):85-95
16295700
JAMA. 2003 Apr 9;289(14):1833-6
12684363
Med Sci Sports Exerc. 1997 Jun;29(6 Suppl):S1-205
9243481
Prev Med. 2007 Mar;44(3):209-17
17197015
Psychol Rev. 1977 Mar;84(2):191-215
847061
Prev Med. 2005 Jan;40(1):54-9
15530581
Arch Intern Med. 2007 May 14;167(9):944-9
17502536
Health Educ Res. 2007 Jun;22(3):385-96
16971674
Health Psychol. 2007 Jul;26(4):401-9
17605559
Am J Epidemiol. 1985 Jan;121(1):91-106
3964995
Prev Med. 2002 Dec;35(6):612-5
12460529
J Med Internet Res. 2007 Apr 27;9(2):e7
17478409
Prev Chronic Dis. 2005 Apr;2(2):A17
15888228
Nicotine Tob Res. 2005 Apr;7(2):207-16
16036277
Contemp Clin Trials. 2007 Nov;28(6):737-47
17616486
Am J Prev Med. 2000 Aug;19(2):121-6
10913903
Ann Behav Med. 2003 Spring;25(2):105-11
12704012
Ann Behav Med. 2003 Spring;25(2):92-9
12704010
J Geriatr Phys Ther. 2005;28(1):28-33
16236225
Am J Prev Med. 2003 Aug;25(2):88-94
12880874
Am J Epidemiol. 1985 Nov;122(5):794-804
3876763
Health Psychol. 1993 Sep;12(5):399-405
8223364
J Phys Act Health. 2007 Jul;4(3):245-60
17846455