The Causal Impact of Online Social Media on Physical Activity: A Randomized Controlled Trial
1 other identifier
interventional
217
0 countries
N/A
Brief Summary
The overall objective of this research is to collect data for understanding whether messages in online environments impact fitness attitudes and behaviors. In particular, the study aims to experimentally examine what features of online social media - promotional messaging or peer networks - impact offline fitness measures (such fitness workshop enrollment and self-reported physical activity level). The study partners with an existing fitness program at a large northeastern university, which provides a 13-week fitness program for graduate and professional students at the university. The program begins with a university-run eligibility assessment of specific fitness measures for all participants, who win prizes for improvements in program participation and health behavior outcomes. The fitness program consists of semester-long series of workshops offered through the university's recreation department. The randomized trial constructs an online social media platform for the fitness program that provides a way to send either promotion health messages or messages about peer activities to the online community.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jan 2014
Shorter than P25 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2014
CompletedFirst Submitted
Initial submission to the registry
October 7, 2014
CompletedFirst Posted
Study publicly available on registry
October 17, 2014
CompletedOctober 17, 2014
October 1, 2014
4 months
October 7, 2014
October 13, 2014
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Fitness workshop enrollment
Participants' enrollment in fitness workshops is recorded when participants digitally confirm their workshop registration. Workshop instructors confirm the attendance of enrolled participants. Enrollment is assessed up to 3 months from date of randomization.
Up to 3 months
Secondary Outcomes (1)
Change from baseline in participants' self-reported physical activity level
Baseline and 3 months
Study Arms (3)
Basic fitness program
ACTIVE COMPARATORThe control condition provides study participants with online tools for enrolling in offline fitness workshops offered by the university's recreation department and recording their progress in the program. All fitness workshops are pre-programmed in an online calendar. Upon clicking a workshop, participants can read a detailed description and register for it directly on the calendar. The registration then triggers a confirmation email sent to the participant immediately and a reminder email 12 hours before the workshop starts. In addition, an online tracking tool is built that participants can use to keep a daily journal of their health activities and fitness status.
Media-assisted fitness program
EXPERIMENTALThe media condition evaluates the effects of informational and motivational messages on physical activity by supplementing the basic program tools with promotional media, including: "high arousal" videos encouraging physical activity, real-time email notifications about upcoming fitness workshops, and informational graphics with exercise tips and motivational messages. In the media condition, participants receive two videos on the website and one informational graphic that encourage physical activity on a weekly basis.
Social network-assisted fitness program
EXPERIMENTALThe social condition, by contrast, omits the media content. Instead, the basic program is supplemented with a network of four to six anonymous "health peers," composed of other participants of the program. Within the program website, each participant is able to see their peers' basic profile information, as well as information about their peers' progress in the program, and real-time notifications about their peers' completion of program activities. These networks do not provide any added incentives or additional content to promote physical activity, nor can participants directly communicate with, or "message" their peers through the website.
Interventions
Participants can register workshops online, track program participation, and receive promotional health messages online.
Participants can register workshops online and track program participation. Participants are put into anonymous online social networks and receive real-time activity updates from 4-6 peers.
Participants can register workshops online and track program participation.
Eligibility Criteria
You may qualify if:
- Graduate and professional students at a large northeastern university.
- Logging in to the study website at least once after online registration
You may not qualify if:
- Inability to perform physical activities (e.g., broken limbs), and underlying diseases that were likely to affect participant safety. Ineligibility is determined by the Department of Recreation and Health Services at the university.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (10)
Valle CG, Tate DF, Mayer DK, Allicock M, Cai J. A randomized trial of a Facebook-based physical activity intervention for young adult cancer survivors. J Cancer Surviv. 2013 Sep;7(3):355-68. doi: 10.1007/s11764-013-0279-5. Epub 2013 Mar 27.
PMID: 23532799BACKGROUNDCavallo DN, Tate DF, Ries AV, Brown JD, DeVellis RF, Ammerman AS. A social media-based physical activity intervention: a randomized controlled trial. Am J Prev Med. 2012 Nov;43(5):527-32. doi: 10.1016/j.amepre.2012.07.019.
PMID: 23079176BACKGROUNDCobb NK, Graham AL. Health behavior interventions in the age of facebook. Am J Prev Med. 2012 Nov;43(5):571-2. doi: 10.1016/j.amepre.2012.08.001. No abstract available.
PMID: 23079184BACKGROUNDEysenbach G, Powell J, Englesakis M, Rizo C, Stern A. Health related virtual communities and electronic support groups: systematic review of the effects of online peer to peer interactions. BMJ. 2004 May 15;328(7449):1166. doi: 10.1136/bmj.328.7449.1166.
PMID: 15142921BACKGROUNDCentola D. The spread of behavior in an online social network experiment. Science. 2010 Sep 3;329(5996):1194-7. doi: 10.1126/science.1185231.
PMID: 20813952BACKGROUNDCentola D. An experimental study of homophily in the adoption of health behavior. Science. 2011 Dec 2;334(6060):1269-72. doi: 10.1126/science.1207055.
PMID: 22144624BACKGROUNDKorda H, Itani Z. Harnessing social media for health promotion and behavior change. Health Promot Pract. 2013 Jan;14(1):15-23. doi: 10.1177/1524839911405850. Epub 2011 May 10.
PMID: 21558472BACKGROUNDBennett GG, Glasgow RE. The delivery of public health interventions via the Internet: actualizing their potential. Annu Rev Public Health. 2009;30:273-92. doi: 10.1146/annurev.publhealth.031308.100235.
PMID: 19296777BACKGROUNDStrecher V. Internet methods for delivering behavioral and health-related interventions (eHealth). Annu Rev Clin Psychol. 2007;3:53-76. doi: 10.1146/annurev.clinpsy.3.022806.091428.
PMID: 17716048BACKGROUNDZhang J, Brackbill D, Yang S, Centola D. Efficacy and causal mechanism of an online social media intervention to increase physical activity: Results of a randomized controlled trial. Prev Med Rep. 2015 Aug 13;2:651-7. doi: 10.1016/j.pmedr.2015.08.005. eCollection 2015.
PMID: 26844132DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Damon M. Centola, Ph.D
Annenberg School for Communication, University of Pennsylvania
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- CARE PROVIDER, OUTCOMES ASSESSOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 7, 2014
First Posted
October 17, 2014
Study Start
January 1, 2014
Primary Completion
May 1, 2014
Study Completion
May 1, 2014
Last Updated
October 17, 2014
Record last verified: 2014-10