Explaining Sedentary Behavior With Planning (the Revised HAPA Model)

Not Applicable

Recruiting

• Conditions: Sedentary Behavior
• Interventions: Behavioral: Planning + Education; Behavioral: Education

• Registration Number: NCT04131270
• Lead Sponsor: University of Social Sciences and Humanities, Warsaw

Brief Summary

This study would investigate the effects of forming action plans on a reduction of sedentary behaviors. Participants will be randomly assigned to either active control group (education on sedentary behaviors and physical activity) or the intervention group (forming action plans referring to replacing sedentary activities with physical activity. The effects of the intervention will be evaluated at the 2-month follow-up and at the 8-month follow-up.

Detailed Description

The effects of three sessions (3 education sessions versus 3 education sessions+ forming plans to replace sedentary behavior with physical activity) will be investigated among participants from three age groups: adolescents (12-17 years old), adults (18-60 years old), and older adults (\>60 years old). Compared to education only, forming plans about how to replace time spent on sedentary activities with physical activity is expected to result in a significantly larger change (a reduction) of sedentary time at the follow-up. Accelerometers will be used to evaluate short-term and mid-term changes in total sedentary time and the relative proportion of time spent on sedentary behavior vs light-intensity and moderate-to-vigorous- intensity physical activity.

Additionally, the study will observe changes in if the cognitions included in the Health Action Process Approach model (HAPA), such risk perception, self-efficacy, outcome expectancies, intention, action control, as well as changes in behavioral habit, presence of sedentary behavior cues in physical environment, and physical activity behavior. The observations will be conducted three times, at the baseline (before the intervention), the 2-month follow up, and at the 8-month follow-up.

Study Timeline

• Study First Submitted: 2019-10-15
• Study First Submitted QC: 2019-10-17
• Study First Posted: 2019-10-18
• Study Start: 2020-01-02
• Status Verified: 2024-03
• Last Update Submitted: 2024-03-15
• Last Update Posted: 2024-03-18
• Primary Completion: 2024-03-30
• Study Completion: 2024-03-30

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 900

Inclusion Criteria

• not meeting physical activity guidelines proposed by the World Health Organization

Exclusion Criteria

• any existing diseases with contraindications for moderate intensity physical activity, confirmed by patient's primary care physician or a specialist in cardiovascular diseases/endocrinology/rehabilitation medicine providing care for the patient during the recruitment and follow-ups

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Planning + Education	Education	3 education sessions + 1 planning session (integrated into the 3rd education session); delivered face-to-face over 3 weeks (after the baseline measurement), individually. Planning: The planning materials and forms have sections: (a) instructions of what should be included in a good plan (the when, where, and how components), (b) formulating action and coping plans. Action plans (referring to when, when, and how the individual will act) as well as coping plans (referring to how to overcome potential difficulties) will be formed. After forming the plans individually, experimenters will discuss the plans with the participants.
Planning + Education	Planning + Education	3 education sessions + 1 planning session (integrated into the 3rd education session); delivered face-to-face over 3 weeks (after the baseline measurement), individually. Planning: The planning materials and forms have sections: (a) instructions of what should be included in a good plan (the when, where, and how components), (b) formulating action and coping plans. Action plans (referring to when, when, and how the individual will act) as well as coping plans (referring to how to overcome potential difficulties) will be formed. After forming the plans individually, experimenters will discuss the plans with the participants.
Education	Education	3 education sessions; delivered face-to-face over 3 weeks (after the baseline measurement), individually. The education includes extended physical activity and sedentary behavior education using participant-educator discussions and printed materials.

Primary Outcome Measures

Name	Time	Method
Sedentary behavior	change from the baseline sedentary behavior at 8 months	minutes of sedentary behavior per day assessed with ActiGraph wGT3X-BT accelerometer

Secondary Outcome Measures

Name	Time	Method
The composition of waking time	change from the baseline composition of waking time at 8 months	the proportion of time spent on sedentary behavior (minutes per day) to time spent on light-intensity physical activity (minutes per day) and moderate-to-vigorous physical activity (minutes per day) assessed with ActiGraph wGT3X-BT accelerometer
Physical activity	change from the baseline physical activity at 8 months	minutes of light, moderate and vigorous intensity physical activity per day measured with ActiGraph wGT3X-BT accelerometer

Trial Locations

Locations (1)

SWPS University of Social Sciences and Humanities; 🇵🇱 Wroclaw, Lower Silezia, Poland