Cardiovascular Disease Clinical Trial
Official title:
A Web-based Exercise Intervention With Financial Incentives for Cardiac Rehabilitation Graduates: A One Year Crossover Study Design
The objective of this study is to examine whether a financial incentive program increases minutes of moderate-to-vigorous physical activity (MVPA) per week among cardiac rehabilitation (CR) graduates.
A 52-week, randomized, crossover study design will be employed to examine the impact of
financial incentives on MVPA among cardiac rehabilitation (CR) program graduates. Two
experimental therapies, (1) online self-monitoring plus 'virtual rewards' (i.e. badges)
(ExTrack.ca) and (2) online self-monitoring plus 'financial incentives' (ExTracker.ca), will
be administered for six months, one after the other.
Study participants will be randomly assigned (1:1) to receive these therapies in one of two
orders: Group A will receive ExTrack.ca (virtual rewards) for six months, followed by
ExTracker.ca (financial incentives) for the next six months; Group B will receive the
financial incentive condition first, and the virtual rewards condition second. While exposed
to the incentive condition, participants will be eligible to earn financial reward per day
exercise is tracked.
This study design allows for the assessment of 'real world' uptake of an incentive program
among CR patients, since both Groups A and B will be able to earn incentives. This design
will also help determine if incentives sustain MVPA in the first six months post-CR compared
with the virtual rewards condition. Finally, the crossover design will allow the exploration
of incentive 'timing' - that is, figuring out if incentives more effectively sustain MVPA
post-CR if they are offered immediately, versus six months after graduation when patient
motivation tends to wane.
In addition to tracking exercise sessions using the online self-monitoring tool,
participants will be asked to record steps per day, and 10-minute MVPA bouts per day, using
a StepsCount accelerometer. To check the accuracy of participant entries, participants will
be asked to mail-in their accelerometers at the study mid- and end-points (26 and 52 weeks,
respectively). Participants will also be asked to complete the Behavioural Regulation to
Exercise Questionnaire (BREQ-3) at baseline (T1), study mid-point/crossover (T2), and study
end-point (T3) as well as cardiopulmonary fitness assessments at T1 and T3.
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