Long-term Effects of Individualized Follow-up With an App for One Year

Study Overview
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Brief Summary
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The aim of this study is to examine the long-term (3-5 year post intervention) effects post individualized follow-up with an app for one year, compared to a control group that received usual care on factors related to healthy behaviour in patients post-CR.

Detailed Description
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Recently, our research group demonstrated that individualized follow-up with an app for one year post-Cardiac Rehabilitation (post-CR) significantly improved exercise capacity, exercise habits and self-perceived goal achievement compared to a control group receiving usual care. To prepare for real-world implementation of an app to promote healthy behaviour post-CR, we will investigate the long-term effects (3-5 year post intervention). The aim of this study is to examine the long-term (3-5 year post intervention) effects post individualized follow-up with an app for one year, compared to a control group that received usual care on factors related to healthy behaviour in patients post-CR. We hypothesize that patients allocated to the intervention group post-CR have internalized healthy behaviour and therefore have significantly higher exercise capacity and lower bodyweight compared to the control group, 3-5year post intervention.

Official Title
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Effect of Using a Smartphone Application to Promote Adherence to Healthy Behaviour Post-cardiac Rehabilitation: Five Year Follow-up of a Randomized Controlled Trial

Conditions
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Coronary Artery Disease

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Included in the RCT of which this study is built on

Ages Eligible for Study
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Minimum Age: 41 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Peak oxygen uptake | Relative VO2peak (ml/kg/min) | 5 year post rehab | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time to exhaustion | Time on treadmill measured in seconds | 5 year post rehab | 
| Peak incline | Incline (%) at treadmill in the end of the test | 5 year post rehab | 
| Peak velocity | Kilometer per hour in the end of the test | 5 year post rehab | 
| Bodyweight | Kilograms | 5 year post rehab | 
| LDL cholesterol | Blood sample | 5 year post rehab | 
| HDL cholesterol | Blood sample | 5 year post rehab | 
| Total cholesterol | Blood sample | 5 year post rehab | 
| Exercise habits | Mean number of exercise sessions each week for the last year | 5 year post rehab | 
| Health related quality of life | HeartQoL | 5 year post rehab | 
| Health status | EQ5D | 5 year post rehab | 
| Cardiovascular events | Number of new cardiovascular events in the last five years | 5 year post rehab | 
| Dietary habits | Hva spiser du - a norwegian questionnaire developed to assess nutrional habits | 5 year post rehab | 
| Triglycerides | Bloodsample | 5 year post rehab | 
| Physical activity | IPAQ | 5 year post rehab | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Cardiac rehabilitation, mHealth, mobile phone app, Lifestyle, Smartphone