Exercise Habit & MPAC

NCT04651751 | Completed

• 1 other identifier: AT956
• Study Type: interventional
• Target: 85
• Locations: 0 countries
• Sites: N/A

Brief Summary

The limitations of applying social cognitive models to understand physical activity (PA) have led to the emergence of several new PA models within the past decade. The Multi-Process Action Control (M-PAC) is a comprehensive PA model that proposes intention is established from outcome expectations, perceived capability, and opportunity, then the success of translating this to behavior depends on affective judgments and behavioral-regulation. Over time, M-PAC proposes that behavior is can become maintained through the formation of identity and habit. The purpose of this study was to investigate the trajectory of change of these M-PAC constructs across time in a randomized controlled trial. Participants (n=85) were inactive new gym members and were randomized into a control (n=41) or intervention (n=44) group. The intervention group attended a workshop and received a booster phone call follow-up at week four. Measures for both groups included accelerometry and M-PAC at baseline and eight week follow-up.

Conditions

Public Health

Outcome Measures

Primary Outcomes (1)

• GT3X+ Actigraph Activity Monitors (for measuring physical activity)

  Participants wear accelerometers for one week at baseline and at week eight to record their physical activity.

  Baseline to 8 weeks

Secondary Outcomes (1)

• 1.Self-Report Behavioural Automaticity Index (self report, survey question

  Baseline, week four, week eight

Other Outcomes (2)

• Environmental Cues (self report, survey question)

  Baseline, week four, week eight

• Temporal Consistency (self report, survey question)

  Baseline, week four, week eight

Study Arms (2)

Control

NO INTERVENTION

No Intervention: Control Participants exercised on their own without receiving any instructions.

Intervention

EXPERIMENTAL

Those who were randomized into the intervention group attended a workshop where the PI delivered a presentation that focused on establishing a preparatory exercise habit by using the M-PAC approach and proposed habit model. Participants were then provided with instructions on completing their exercise plan sheet.

Behavioral: Facilitating an Exercise Habit and Identity via the Multi-Process Action Control Model- A Randomized-Controlled Trial

Interventions

Facilitating an Exercise Habit and Identity via the Multi-Process Action Control Model- A Randomized-Controlled Trial BEHAVIORAL

Participants attended a workshop which consisted of a presentation and an exercise planning exercise.

Intervention

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• adults 18-65
• new gym members
• exercising \< 150 minutes/week at a moderate to vigorous level

You may not qualify if:

• not affiliated with a gym or recreation center
• exercising \> 150 minutes/week at a moderate to vigorous level
• clinical health conditions (assessed by the PAR-Q)

Sponsors & Collaborators

• University of Victoria: lead

Study Officials

• Ryan E Rhodes, PhD

  University of Victoria

  STUDY CHAIR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: November 17, 2020
• First Posted: December 3, 2020
• Study Start: January 1, 2015
• Primary Completion: June 1, 2015
• Study Completion: June 1, 2015
• Last Updated: December 3, 2020

Record last verified: 2020-11