Effectiveness of a Web-based, Computer-tailored, Pedometer-based Physical Activity Intervention for Adults: a Cluster-randomized Controlled Trial

NCT ID: NCT02080585

Last Updated: 2014-03-06

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 274 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2012-05-31
• Study Completion Date: 2013-06-30

Brief Summary

The present study used a cluster-randomized controlled trial to evaluate the effects of a computer-tailored, pedometer-based Physical Activity (PA) intervention delivered through the Internet. An invitation e-mail with study information was sent to managers of 18 white-collar workplaces. Eight workplaces consented to participate. All employees of a single workplace were allocated at random to either the intervention or a waiting list control group, in order to avoid contamination between employees receiving the intervention and those who were not receiving the intervention. Subsequently, employees of the participating workplaces were recruited by e-mail. Only Dutch speaking employees between 18 and 65 years old, who had access to the Internet at work or at home, were eligible. Interested employees could sign up by returning a confirmation e-mail to the researchers. On receiving this information, a meeting was organized in each of the eight worksites to deliver all documents for baseline measurement (T0) to the participants, including an informed consent form, a blinded pedometer, an activity log and a self-administered questionnaire. During this meeting, information was provided on how to use the pedometer, how to log PA activities and how to answer the questionnaire. Moreover, the participants were asked to adhere to their usual PA pattern throughout the baseline measurement. After one week, all measurement tools were collected, and average daily step counts were calculated. At this point, participants in the intervention condition received (1) a booklet with information on how to increase steps, (2) a non-blinded pedometer, which they could use for three months, and (3) a username, a password and the amount of average daily steps, calculated by the researchers, so that participants could use this number when requesting the online computer-tailored step advice. Participants in the control condition did not receive any of the above mentioned intervention components. One and three months later, all participants again received a blinded pedometer, which was worn for one week. When wearing the blinded-pedometer one month (T1) and three months (T2) post baseline, intervention participants were allowed to also were the non-blinded pedometer. Furthermore, the same self-reported questionnaire was used to measure PA level at T1 and T2 in order to test the effectiveness of the intervention.

Conditions

Inactivity

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: HEALTH_SERVICES_RESEARCH
• Blinding Strategy: NONE

Study Groups

Control group without advice

Control group receives no intervention or physical activity advice.

Group Type: NO_INTERVENTION

No interventions assigned to this group

Computer-tailored physical activity advice

Subjects receive computer-tailored physical activity advice.

Group Type: EXPERIMENTAL

Physical Activity advice.

Intervention Type: BEHAVIORAL

Subjects receive advice regarding physical activities.

Interventions

Physical Activity advice.

Subjects receive advice regarding physical activities.

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• Dutch speaking
• Age range: 18 - 65 years old
• Access to the Internet at work or at home

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Research Foundation Flanders

OTHER

Sponsor Role: collaborator

University Ghent

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Ilse De Bourdeaudhuij, PhD

Role: PRINCIPAL_INVESTIGATOR

University Ghent

Locations

Ghent University - Department of Movement and Sports Sciences

Ghent, , Belgium

Countries

Belgium

References

Compernolle S, Vandelanotte C, Cardon G, De Bourdeaudhuij I, De Cocker K. Effectiveness of a web-based, computer-tailored, pedometer-based physical activity intervention for adults: a cluster randomized controlled trial. J Med Internet Res. 2015 Feb 9;17(2):e38. doi: 10.2196/jmir.3402.

Reference Type: DERIVED

PMID: 25665498 (View on PubMed)

Other Identifiers

2005/027

Identifier Type: -

Identifier Source: org_study_id