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Public HealthPhase 2/3NCT02785107

Exercise Habit and M-PAC

A Phase 2/3 study testing M-PAC Group in people with Public Health, run by University of Victoria at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The promotion of physical activity (PA) is paramount to public health, yet interventions in the social cognitive tradition have yielded negligible improvements. Two reasons for these results may be the over reliance on intention as the proximal determinant of behaviour and a lack of consideration of implicit/automatic… Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Public Health
What is being tested?
M-PAC Group
Could I receive a placebo?
No, everyone receives an active treatment
How many people
94 participants
Where
1 siteCanada
Study dates
Jan 2015to May 2015
Phase
Phase 2/3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • New gym member
  • age 18-65
  • Par-Q pass

Who cannot join

  • age <18 or 65+
  • Par-Q fail

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • University of Victoria

    Victoria, British Columbia, V8W 2Y2

Other trials in Canada

About this study

Official title: Facilitating an Exercise Habit Via the Multi-Process Action Control Model: A Randomized-Controlled Trial

The promotion of physical activity (PA) is paramount to public health, yet interventions in the social cognitive tradition have yielded negligible improvements. Two reasons for these results may be the over reliance on intention as the proximal determinant of behaviour and a lack of consideration of implicit/automatic determinants of PA. The purpose of this study was to apply Multi-Process Action Control (M-PAC), a framework centered on PA intention-translation and the gradual building of habit to examine PA change using a two-arm parallel design, randomized controlled trial.

Read the detailed description

Background: Two of the most prominent limitations of traditional social cognitive models used to understand moderate-to-vigorous physical activity (MVPA) are the gap between intention and behaviour and the lack of consideration of implicit processes in behavioural enactment. Thus, new models are now being examined that attempt to consider these potential limitations. Multi-Process Action Control (M-PAC) is one such attempt to build a more comprehensive schematic, whereby intention is established via the means of constructs from traditional social cognitive theories (i.e., outcome expectations, perceived capability), but the success of translating this intention to behaviour depends on behavioural-regulation (self-regulatory tactics) (BR), affective judgments (expected pleasure) (AJ) and opportunity (time, access). Over time, M-PAC proposes that habit (stimulus -behaviour bonds) and identity (role-behaviour bonds) develop from performing the behaviour and largely contribute to the maintenance of PA.

Aim: The purpose of this study was to conduct at two-arm parallel design, RCT to determine if the M-PAC experimental group would demonstrate greater change in PA and post-intention constructs across time.

Methods: Participants (n=94) were inactive new gym members and were randomized into a control or M-PAC experimental group. The experimental 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 at week eight.

Conditions
Public Health
Being tested
M-PAC Group
Keywords
Exercise, Habit, MVPA, M-PAC, Automaticity, Physical Activity
Medical subject headings
Motor Activity, Habits

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • M-PAC GroupBehavioural

    Participants attended a workshop, completed a worksheet and received a booster phone call follow-up at week four.

Study groups in NCT02785107
Study groupRoleWhat they receive
InterventionExperimentalThose 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.
Receives: Behavioral: M-PAC Group
ControlNo interventionParticipants exercised on their own without receiving any instructions.

What is being measured

The primary outcome is the main question the study is designed to answer.

  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.

    Measured: Baseline to week eight

Secondary outcomes (1)
  1. Self-Report Behavioural Automaticity Index (self report, survey question)

    The Self-Report Behavioral Automaticity Index (SRBAI) was used to assess preparatory habit. The SRBAI consists of 4 items on a 5-point Likert scale with 1 being strongly disagree to 5 being strongly agree. The question stem stated ''When I prepare to exercise…'' which was then followed by four items on the scale: ''I do it without having to consciously remember'', ''I do it automatically'', ''I do it without thinking'', and ''I start before I realize I am doing it''.

    Measured: Baseline, week four, week eight

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 May 2016 (estimated)
  2. Study startJan 2015
  3. Primary completionMay 2015
  4. Study completionMay 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
94 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02785107
Sponsor's protocol ID
14-306
Status last verified
May 2016
First submitted
11 May 2016
Last updated
1 Jun 2016
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Kaushal N, Rhodes RE, Spence JC, Meldrum JT. Increasing Physical Activity Through Principles of Habit Formation in New Gym Members: a Randomized Controlled Trial. Ann Behav Med. 2017 Aug;51(4):578-586. doi: 10.1007/s12160-017-9881-5.

    PubMed 28188586

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing M-PAC Group in people with Public Health, run by University of Victoria at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Jun 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

GT3X+ Actigraph Activity Monitors (for measuring physical activity) (time frame: Baseline to week eight). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02785107, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Jun 2016.

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