Web-based Physical Activity Program

Investigation of Web-based Motivational Interviewing to Increase Physical Activity Participation Among Adults

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 Overview

• Status: Unknown
• Conditions: Physical Activity
• Intervention / Treatment: Behavioral: Web-based Motivational Interviewing

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
• Enrollment (Anticipated): 132
• Phase: Phase 1

Contacts and Locations

Study Locations

• United States
  • Wisconsin
    • Milwaukee, Wisconsin, United States, 53212
      • Recruiting
      • Aurora RiverCenter
      • Contact: Tomas Kubrican, M.D.; Email: tomas.kubrican@aurora.org
      • Principal Investigator: Sasha L. Karnes, M.S.

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 21 years to 55 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

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.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

1

Arms and Interventions

Participant Group / 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.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Physical Activity (pedometer recordings)	Physical activity will be assessed using pedometers.	1 week post-intervention
Physical activity (self-report)	Physical activity will be assessed using a self-report inventory.	3-months post-intervention

Secondary Outcome Measures

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

Collaborators and Investigators

• Sponsor: Karnes, Sasha
• Collaborators: University of Wisconsin, Whitewater
• Investigators: Principal Investigator: Sasha L. Karnes, M.S., University of Wisconsin, Milwaukee

Study record dates

Study Major Dates

• Study Start: October 1, 2014
• Primary Completion (Anticipated): May 1, 2016

Study Registration Dates

• First Submitted: October 4, 2010
• First Submitted That Met QC Criteria: October 7, 2010
• First Posted (Estimate): October 11, 2010

Study Record Updates

• Last Update Posted (Estimate): April 6, 2015
• Last Update Submitted That Met QC Criteria: April 3, 2015
• Last Verified: April 1, 2014

More Information

Terms related to this study

• Keywords: Physical Activity; Motivational Interviewing; Web-based; Physician Referral
• Other Study ID Numbers: 10-84E