Web-based Physical Activity Program

Phase 1

• Conditions: Physical Activity
• Interventions: Behavioral: Web-based Motivational Interviewing

• Registration Number: NCT01218412
• Lead Sponsor: 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.

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 Timeline

• Study First Submitted: 2010-10-04
• Study First Submitted QC: 2010-10-07
• Study First Posted: 2010-10-11
• Status Verified: 2014-04
• Study Start: 2014-10
• Last Update Submitted: 2015-04-03
• Last Update Posted: 2015-04-06
• Primary Completion: 2016-05

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 132

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 & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Web-based, Mi=Based Intervention	Web-based Motivational Interviewing	4 session web-based, MI-based intervention.

Primary Outcome Measures

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

Secondary Outcome Measures

Name	Time	Method
Cognitive Mediators	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.

Trial Locations

Locations (1)

Aurora RiverCenter; 🇺🇸 Milwaukee, Wisconsin, United States