Milwaukee, Wisconsin 53212


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.

Study summary:

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.


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.



Primary Contact:

Principal Investigator
Sasha L. Karnes, M.S.
University of Wisconsin, Milwaukee

Sasha L. Karnes, M.S.

Backup Contact:


Location Contact:

Milwaukee, Wisconsin 53212
United States

Tomas Kubrican, M.D.

Site Status: Recruiting

Data Source:

Date Processed: August 31, 2019

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