Web-based Physical Activity Program

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01218412
Recruitment Status : Unknown
Verified April 2014 by Sasha Karnes, Karnes, Sasha.
Recruitment status was:  Recruiting
First Posted : October 11, 2010
Last Update Posted : April 6, 2015
University of Wisconsin, Whitewater
Information provided by (Responsible Party):
Sasha Karnes, Karnes, Sasha

Brief Summary:

The specific aims of the proposed study are:

  • 1. To determine if web-based Motivational Interviewing (MI) is effective, compared to an informational web-based comparison group, in enhancing physical activity (PA) participation; and
  • 2. To assess the mechanisms by which web-based MI enhances PA through changes in targeted cognitive mediators.

The specific hypotheses of the study include that:

  • Hypothesis 1: Web-based MI will increase PA;
  • Hypothesis 2: Web-based MI will lead to stage progression in the direction of increased readiness to participate in PA;
  • Hypothesis 3: Web-based MI will influence theoretically identified cognitive variables;
  • Hypothesis 4: Cognitive variables will mediate increases in PA participation.

Condition or disease Intervention/treatment Phase
Physical Activity Behavioral: Web-based Motivational Interviewing Phase 1

Detailed Description:
Increasing physical activity (PA) is a public health priority. There is preliminary support for application of Motivational Interviewing (MI) for physical activity (PA), web-applications for PA promotion, web-based MI for behavior change, and finally web-based MI for PA. Based on collective findings in these areas of inquiry, it is necessary to investigate the efficacy of MI as a method that lends readily to practical applications for PA promotion. The current study seeks to investigate whether web-based MI can be applied in an adult population to enhance PA participation using a physician referral scheme. Additionally, mechanisms of behavior change are considered in order to inform future research and intervention.

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 132 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Prevention
Official Title: Investigation of Web-based Motivational Interviewing to Increase Physical Activity Participation Among Adults
Study Start Date : October 2014
Estimated Primary Completion Date : May 2016

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Arm Intervention/treatment
Experimental: Web-based, Mi=Based Intervention
4 session web-based, MI-based intervention.
Behavioral: Web-based Motivational Interviewing
Participants will engage in 4 sessions of web-based motivational interviewing over the course of 4 weeks.

Primary Outcome Measures :
  1. Physical Activity (pedometer recordings) [ Time Frame: 1 week post-intervention ]
    Physical activity will be assessed using pedometers.

  2. Physical activity (self-report) [ Time Frame: 3-months post-intervention ]
    Physical activity will be assessed using a self-report inventory.

Secondary Outcome Measures :
  1. Cognitive Mediators [ Time Frame: 3 months post intervention ]
    Cognitive mediators of physical activity participation including self-efficacy, readiness to change, motivation, intention, enjoyment, and decisional balance for physical activity will be assessed.

Information from the National Library of Medicine

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Ages Eligible for Study:   21 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Adults referred through primary care due to insufficient physical activity standards based on Centers for Disease Control (CDC) guidelines for aerobic activity.
  • Must have internet access and e-mail.
  • Cleared by physician for physical activity participation.

Exclusion Criteria:

  • Greater than 10,000 steps per day on average based on baseline pedometer screening over the course of 7 days.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01218412

Contact: Sasha L. Karnes, M.S.

United States, Wisconsin
Aurora RiverCenter Recruiting
Milwaukee, Wisconsin, United States, 53212
Contact: Tomas Kubrican, M.D.   
Principal Investigator: Sasha L. Karnes, M.S.         
Sponsors and Collaborators
Karnes, Sasha
University of Wisconsin, Whitewater
Principal Investigator: Sasha L. Karnes, M.S. University of Wisconsin, Milwaukee

Responsible Party: Sasha Karnes, Ph.D., Karnes, Sasha Identifier: NCT01218412     History of Changes
Other Study ID Numbers: 10-84E
First Posted: October 11, 2010    Key Record Dates
Last Update Posted: April 6, 2015
Last Verified: April 2014

Keywords provided by Sasha Karnes, Karnes, Sasha:
Physical Activity
Motivational Interviewing
Physician Referral