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Status unknownNCT01218412Updated Apr 6, 2015

Web-based Physical Activity Program

A Phase 1 interventional study of Web-based Motivational Interviewing in Physical Activity, sponsored by Karnes, Sasha. Status unknown at 1 site in United States. Open to participants aged 21 Years to 55 Years. Per ClinicalTrials.gov, last updated 2015-04-06.

Sponsored by Karnes, Sasha · Phase 1, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Apr 2014), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 1
Study type
Interventional
Enrollment
132
Allocation
Randomized
Ages
21 Years to 55 Years
Sex
All
01

Study 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
    1. 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.
Read the 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.

02

Conditions studied

  • Physical Activity

Keywords

  • Physical Activity
  • Motivational Interviewing
  • Web-based
  • Physician Referral
03

In context

Lead sponsor

This is the only study on the registry with Karnes, Sasha as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years to 55 Years
Sexes eligible
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

Exclusion Criteria:

  • Greater than 10,000 steps per day on average based on baseline pedometer screening over the course of 7 days.
05

Study design

Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
132 participants (estimated)

Study arms

  • Experimental
    Web-based, Mi=Based Intervention

    4 session web-based, MI-based intervention.

    Behavioral: Web-based Motivational Interviewing

Interventions

  • BehavioralWeb-based Motivational Interviewing

    Participants will engage in 4 sessions of web-based motivational interviewing over the course of 4 weeks.

06

What researchers measure

Primary outcomes

  1. Physical Activity (pedometer recordings)

    Physical activity will be assessed using pedometers.

    Time frame: 1 week post-intervention

  2. Physical activity (self-report)

    Physical activity will be assessed using a self-report inventory.

    Time frame: 3-months post-intervention

Secondary outcomes

  1. 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.

    Time frame: 3 months post intervention

07

Study locations

1 of 1 sites recruiting
  • Aurora RiverCenter
    Milwaukee, Wisconsin 53212, United States
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 6, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01218412
Lead sponsor
Karnes, Sasha
Collaborators
University of Wisconsin, Whitewater
Responsible party
Sasha Karnes (Ph.D., Karnes, Sasha) — Principal investigator
First posted
Oct 11, 2010
Start date
Oct 2014
Primary completion
May 2016 (estimated)
Last update
Apr 6, 2015

Study contacts

Sasha L. Karnes, M.S.
Contact
sashaw@uwm.edu
Sasha L. Karnes, M.S.
principal investigator · University of Wisconsin, Milwaukee

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Apr 2014. You cannot join it, but the record below documents what was studied.

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