Stage-based Exercise Promotion Study

NCT ID: NCT01289145

Last Updated: 2012-11-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

500 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-02-28

Study Completion Date

2011-05-31

Brief Summary

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The purpose of this study is to increase regular physical activity among students by fostering self-management competencies. The intervention was implemented as paper-pencil intervention. The aim of this research project is to evaluate a motivational and volitional intervention in comparison to a control intervention.

Study participants will be recruited in lectures at Freie Universitaet Berlin and followed up twice (two and ten weeks after baseline).

The motivational intervention is expected to increase unmotivated participants' intention to be physically active. The volitional intervention is expected to promote physical activity among motivated but inactive participants. Both interventions are hypothesized to improve self-management competencies over time.

Detailed Description

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An experimental study is planned over a time period of ten weeks. In the physical activity study, participants will randomly be allocated to either one of two intervention groups (IG) or to an active control group (ACG), receiving a quiz on physical activity and sports. Intervention group 1 receives a paper-pencil intervention which focuses on positive outcome expectancies (motivational intervention). Intervention group 2 receives a paper-pencil intervention which promotes the formulation of action plans for physical activity (volitional intervention).

Furthermore, all participants will receive two emails as intervention boosters until the end of the study.

Study participants will be invited to take part in the study during lectures of the Freie Universitaet Berlin. The students will be followed up twice: two weeks after T1 (paper-pencil), T2 will take place (paper-pencil). Eight weeks after T2 the T3 assessment will be conducted online.

The hypotheses are:

Participants of the motivational intervention report a larger increase in motivation to adopt physical activity from T1 to T2 and T3, as compared to the participants of the volitional or the control intervention. Effects will be larger in unmotivated participants than in already motivated participants.

Participants of the volitional intervention report a larger increase in physical activity from T1 to T2 and T3, as compared to the participants of the motivational or the control intervention. Effects will be larger in motivated participants than in unmotivated participants.

Conditions

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Obesity Diabetes Mellitus, Type 2

Keywords

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Action Planning Positive Outcome Expectancies Randomized Controlled Trial Stages of change Health behavior Motivation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Intervention

Participants will be allocated to a motivational intervention, a volitional intervention or the active control group.

The motivational intervention promotes positive outcome expectancies on physical activity. The volitional intervention promotes the formulation of action plans for physical activity. Participants in the active control group, receive a quiz on physical activity and sports.

Group Type EXPERIMENTAL

Motivational intervention

Intervention Type BEHAVIORAL

The motivational intervention promotes positive outcome expectancies on physical activity.

Volitional intervention

Intervention Type BEHAVIORAL

The volitional intervention promotes the formulation of action plans for physical activity.

Active Control

Intervention Type BEHAVIORAL

Participants receive a quiz on physical activity and sports.

Interventions

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Motivational intervention

The motivational intervention promotes positive outcome expectancies on physical activity.

Intervention Type BEHAVIORAL

Volitional intervention

The volitional intervention promotes the formulation of action plans for physical activity.

Intervention Type BEHAVIORAL

Active Control

Participants receive a quiz on physical activity and sports.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* to be capable of exercising on their own at a minimum level
* able to fill out a questionnaire (no illiteracy)
* adequate German language ability

Exclusion Criteria

* no internet access
* no email address
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Freie Universität Berlin

OTHER

Sponsor Role lead

Responsible Party

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Freie Universität Berlin

Principal Investigators

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Ralf Schwarzer, PhD

Role: STUDY_CHAIR

Freie Universität Berlin

Locations

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Freie Universität Berlin

Berlin, , Germany

Site Status

Countries

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Germany

Other Identifiers

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STEP-2011-PK

Identifier Type: -

Identifier Source: org_study_id