Sedentary Intervention Trial in Cardiac Rehabilitation

Not Applicable

Completed

Brief Summary: Exercise-based cardiac rehabilitation (CR) has been shown to consistently reduce the rates of total and cardiovascular-related mortality and morbidity. Sedentary behaviours have been shown to be high in patients with cardiovascular disease, but it is not yet known if current CR programming results in significant reductions in these behaviours, or whether a targeted component is warranted. It is also unclear if self-reported sedentary time measures can provide valid and reliable information for monitoring these behaviours in a CR setting, or whether more objective measures are needed. The purpose of this study is to assess the feasibility and usability of the activPAL3 devices for measuring sedentary time in a CR setting, describe changes in sedentary time that occur with standard CR and assess whether the addition of prompting cues from a device can result in further declines in sedentary behaviour and improvements in clinical outcomes, health related quality of life, symptoms of anxiety and depression, aortic stiffness, and aerobic capacity.

Recruitment & Eligibility

Inclusion Criteria

Patient is attending on-site (2 times weekly for 8 weeks) cardiac rehabilitation at the Minto Prevention and Rehabilitation Centre at the University of Ottawa Heart Institute
Patient is 18 years of age or older
Patient has confirmed diagnosis of coronary artery disease (CAD)
Patient understands English or French
Patient is willing and able to provide informed consent

Exclusion Criteria

Patient is unwilling to wear activity monitors
Patient is already using a commercial activity monitor with sedentary prompts (e.g. Jump Up, Garmin)
Patient is unable to attend follow-up visits
Patient not participating in a cardiac rehabilitation program at the University of Ottawa Heart Institute
Patient has cognitive impairment (unable to comprehend or participate in the intervention)
Patient has a history of postural hypotension
Patient is unable, in the opinion of the Medical Director, to participate in the study.

Arm && Interventions

Group	Intervention	Description
Sedentary prompts (VTAP)	Sedentary prompts from a VTAP device	Participants will complete supervised exercise sessions as part of cardiac rehabilitation programming on-site twice weekly for a total of 8 weeks. Participants will also be provided with a VTAP (activPAL3 VT) monitor to wear during waking hours for weeks 1 through 7 of cardiac rehabilitation. The VTAP will alert participants when they have been sedentary for 30 consecutive minutes.

Primary Outcome Measures

Name	Time	Method
Feasibility and Usability of activPAL3 and VTAP Devices	9 weeks	Primary objective is to assess the feasibility and usability of the activPAL3 and VTAP devices in a CR setting. Assessed by examining acceptability of intervention using evaluation surveys (scores). Reporting on number who reported willingness to wear the monitor again (3+). The scale is a 5-point Likert scale that asks "On a scale from 1 to 5, would you be willing to wear the monitor again?". Response options include: 1(never), 2, 3 (maybe), 4, and 5 (yes, please).

Secondary Outcome Measures

Name	Time	Method
Changes in Sedentary Time	baseline and 8 weeks	Changes in sedentary time measured by the activPAL3 over 8-week intervention period. Reported as proportion of day spent sedentary.