Active Choice Intervention About Physical Activity for Physically Inactive Adults

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

564 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-09-04

Study Completion Date

2020-10-09

Brief Summary

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This web-based experimental study aims to ascertain whether promoting an active (i.e. conscious and autonomous) choice process about physical activity results in better behavioural outcomes (e.g. physical activity) and psychological outcomes (e.g. physical activity intention) compared to promoting a passive choice process in physically inactive adults.

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Detailed Description

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In this web-based experimental study, the investigators will use a pre-test post-test four-arm parallel design to compare the effect of promoting an active choice process versus a passive choice process about physical activity on behavioural outcomes (e.g. physical activity behaviour, perceived increase in physical activity) and psychological outcomes (e.g. physical activity intention, commitment) among physically inactive adults.

Participants will be randomized to one of four groups. Participants in group GA+ will be encouraged to make a very active choice by weighing advantages and disadvantages of physical activity, considering personal values, identifying barriers and engaging in action and coping planning. The intervention for group GA is similar, but lacks the action and coping planning exercises. In the other two groups, a passive choice process will be promoted by only providing information: Group G will read the national physical activity guideline and group GI will read the guideline and information about possible advantages and disadvantages and barriers to physical activity. Behavioural and psychological outcomes will be assessed at the first measurement and follow-up measurement. Regression analyses will be performed to examine intergroup differences. In addition, sensitivity analyses and a process evaluation will be performed.

Conditions

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Physical Activity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants

Study Groups

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Guideline + Active Choice + action&coping planning (GA+)

Participants received a web-based intervention consisting of information (including the national physical activity guideline) and several assignments. Assignments included: completing a decision balance sheet; indicating the importance of personal values and the time, effort and energy spent on these personal values; action planning; identifying barriers to physical activity; coping planning.

Group Type EXPERIMENTAL

Guideline + Active Choice + action&coping planning (GA+)

Intervention Type BEHAVIORAL

Web-based intervention consisting of information and assignments, including: completing a decision balance sheet; indicating the importance of personal values and the time, effort and energy spent on these personal values; action planning; identifying barriers to physical activity; coping planning

Guideline + Active Choice (GA)

Participants received a web-based intervention consisting of information (including the national physical activity guideline) and several assignments. Assignments included: completing a decision balance sheet; indicating the importance of personal values and the time, effort and energy spent on these personal values; identifying barriers to physical activity.

Group Type EXPERIMENTAL

Guideline + Active Choice (GA)

Intervention Type BEHAVIORAL

Web-based intervention consisting of information and several assignments, including: completing a decision balance sheet; indicating the importance of personal values and the time, effort and energy spent on these personal values; identifying barriers to physical activity.

Guideline + Information (GI)

Participants received the national physical activity guideline, and information about pros and cons of physical activity, and possible barriers to physical activity.

Group Type EXPERIMENTAL

Guideline + information (GI)

Intervention Type BEHAVIORAL

Web-based information about the national physical activity guideline, pros and cons of physical activity, and possible barriers to physical activity.

Guideline (G)

Comparison arm. Participants received the national physical activity guideline.

Group Type OTHER

Guideline (G)

Intervention Type BEHAVIORAL

Web-based information about the national physical activity guideline.

Interventions

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Guideline + Active Choice + action&coping planning (GA+)

Web-based intervention consisting of information and assignments, including: completing a decision balance sheet; indicating the importance of personal values and the time, effort and energy spent on these personal values; action planning; identifying barriers to physical activity; coping planning

Intervention Type BEHAVIORAL

Guideline + Active Choice (GA)

Web-based intervention consisting of information and several assignments, including: completing a decision balance sheet; indicating the importance of personal values and the time, effort and energy spent on these personal values; identifying barriers to physical activity.

Intervention Type BEHAVIORAL

Guideline + information (GI)

Web-based information about the national physical activity guideline, pros and cons of physical activity, and possible barriers to physical activity.

Intervention Type BEHAVIORAL

Guideline (G)

Web-based information about the national physical activity guideline.

Intervention Type BEHAVIORAL

Other Intervention Names

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Comparison arm

Eligibility Criteria

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Inclusion Criteria

* Low levels of physical activity (i.e. physically active for at least 30 minutes on \<5 days a week and engaging in \<150 minutes of physical activity in total throughout an average week)