"I am a Physically Active Person!": A Randomized Controlled Trial Aimed to Increase Levels of Physical Activity Self-Definition and Physical Activity Among a Sample of Inactive Adults

Not Applicable

Completed

• Conditions: Physical Activity; Physical Activity Self-Definition
• Interventions: Other: Physical Activity Self-Definition; Other: Control

• Registration Number: NCT06509061
• Lead Sponsor: University of Manitoba

Brief Summary

This explanatory sequential mixed methods study investigated if an intervention can increase the physical activity identity and physical activity (PA) of inactive individuals. The intervention condition focused on increasing participant's physical activity self-definition (PASD) through educational sessions and group discussions on the five direct and indirect determinants of PASD (perceived enjoyment, perceived wanting, perceived commitment, perceived trying, perceived ability). The control condition was given general health behaviour education sessions. Researchers conducted interviews with some of the participants after the intervention was completed.

Detailed Description

Not available

Study Timeline

• Study Start: 2015-09
• Primary Completion: 2017-04
• Study Completion: 2017-04
• Status Verified: 2024-06
• Study First Submitted: 2024-06-28
• Study First Submitted QC: 2024-07-17
• Last Update Submitted: 2024-07-18
• Study First Posted: 2024-07-19
• Last Update Posted: 2024-07-22

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 120

Inclusion Criteria

• Must be insufficiently active (<150 minutes of moderate-vigorous PA per week)
• Scored below the mean in PASD
• Medically safe to participate in PA
• Intention to engage in PA over the next 6 weeks

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
PASD Intervention	Physical Activity Self-Definition	6 week 30-45 minute psychoeducation sessions that delivered content on the variables within the Physical Activity Self-Definition Model. The first session was an introductory session and each one that followed focused on one of the direct or indirect determinants of the model: perceived enjoyment, perceived wanting, perceived commitment, perceived trying, perceived ability (all relating to physical activity). Group activities such as worksheets and discussion were carried out during the session.
Attention Control	Control	6 week 30-45 minute educational sessions that delivered content on general health behaviour. After the introductory session, each week, one of five general health behaviours were covered: balanced diet, sleep, reducing sedentary behaviour, mental/spiritual health and self-compassion/cultivating positive health behaviours. Group activities such as worksheets and discussion were carried out during the session.

Primary Outcome Measures

Name	Time	Method
Physical Activity Self-Definition	Measured pre-intervention, 5 weeks later at intervention end and 4 weeks post intervention	Measured with a 4-item questionnaire using a 7-point Likert scale (1= strongly disagree; 7 = strongly agree)
ActiGraph Accelerometers	Measured pre-intervention, 5 weeks later at intervention end and 4 weeks post intervention	Weekly sedentary, light, moderate, and vigorous physical activity minutes were measured using accelerometers, worn at the hip for 7 day during waking hours.