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Adherence to cardiac rehabilitation is poor, and worse for minorities, women, and those with lower levels of education. Patients less likely to be referred to and complete cardiac rehab are at highest risk of adverse outcomes and thus have the most to gain from participation in cardiac rehab. To improve participation, healthcare systems need to limit barriers to enrollment and promote adherence to rehabilitation.
This study aims to (1) iteratively develop and program a theoretically informed technology-based nudge message library for a diverse patient population using multiple and iterative N of 1 within subject studies. Investigators will also engage patient, provider and health systems stakeholders in designing and refining the messages. (2)Develop a one-page decision aid tool to present information designed with principles of shared decision making including pros and cons of hospital and home-based rehabilitation. Investigators will engage patients, providers, and health systems stakeholders to provide feedback on the information sheet. (3) Conduct a 2x2 factorial design randomized trial of a) choice and b) nudge messaging to improve primary outcome of CR adherence. Secondary outcomes will include enrollment and completion of CR, exercise capacity, patient engagement, quality of life, hospitalizations, and healthcare utilization. The study will additionally evaluate the interventions using a mixed methods approach applying the RE-AIM (reach, effectiveness, adoption, implementation, and maintenance) framework and a cost-effectiveness analysis. The cost-effectiveness analysis sub-study will evaluate the implementation cost of home-based and hospital-based cardiac rehabilitation programs in addition to the incremental cost effectiveness ratios for each intervention.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Hospital-based CR + Mobile Application | Experimental | Traditional hospital-based cardiac rehabilitation with mobile application. |
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| Choice CR + Mobile Application | Experimental | Choice of hospital or home-based cardiac rehabilitation with mobile application. |
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| Hospital-based CR + Mobile Application + Nudge | Experimental | Hospital-based cardiac rehabilitation with mobile application and nudges. |
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| Choice CR + Mobile Application + Nudges | Experimental | Choice of Hospital or home-based cardiac rehabilitation with mobile application and nudges. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Hospital-based CR + Movn Application | Other | Participants will be randomly assigned to a group that will receive hospital-based CR and access to the Movn mobile application. |
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| Measure | Description | Time Frame |
|---|---|---|
| Adherence to cardiovascular rehabilitation measured by self-report in the Movn Application or through EHR/exercise physiologist report in RedCap | Attendance for 4 weeks (8 or more) exercise sessions for hospital-based CR or logging exercise data for 4 weeks for home-based rehabilitation. | 12 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Active enrollment of 280 DH participants | Attending one visit following baseline visit or logging exercise data at least once for home-based CR. | 3.5 yrs |
| Completion of cardiovascular rehabilitation as defined by attending or logging 18 exercise sessions |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Pamela Peterson, MD, MSPH | Denver Health and Hospital Authority | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Denver Health and Hospital Authority | Denver | Colorado | 80204 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 40383506 | Derived | Gupta P, Fletcher DR, Durfee J, Martinez M, Hajoglou A, Waughtal J, Bull S, Peterson PN. Enhancing cardiac rehabilitation adherence through home-based rehabilitation and behavioral nudges: The ERA nudge study design and rationale. Am Heart J. 2025 Dec;290:17-28. doi: 10.1016/j.ahj.2025.05.010. Epub 2025 May 16. |
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| Type | Date | Date Unknown |
|---|---|---|
| Release | Dec 9, 2025 | |
| Reset | Dec 17, 2025 | |
| Release | Dec 29, 2025 |
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| Choice of Hospital or home-based CR + Movn Application | Other | Participants will be randomly assigned to a group that has opportunity to opt in to hospital-based cardiovascular rehabilitation or home-based cardiovascular rehabilitation. All will have access to the Movn Application. |
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| Hospital-based CR + Movn Application + Nudge | Other | Participants will be randomly assigned to a group that will receive hospital-based CR and access to the Movn mobile application, plus encouraging nudge messages. |
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| Choice of Hospital or home-based CR + Movn Application + Nudge | Other | Participants will be randomly assigned to a group that has opportunity to opt in to hospital-based cardiovascular rehabilitation or home-based cardiovascular rehabilitation. All will have access to the Movn Application, plus encouraging nudge messages. |
|
Attending or logging 18 exercise sessions |
| 12 weeks |
| Exercise capacity measured by a 6-minute walk test. | Exercise capacity will be measured at the index visit, 6 weeks, 12 weeks. | 12 weeks |
| Patient activation and engagement will be measured using the 13-item Patient Activation Measure (PAM) | The low-literacy version of the 13-item Patient Activation Measure (PAM), both in English and Spanish, will be used to assess the effect of the intervention on patient activation. This validated and predictive tool assesses patient knowledge, skill and confidence in self-management. A single point change in PAM score is clinically meaningful and increases in the PAM are associated with increased self-management behavior. The PAM will be measured at the index visit, 6 weeks, 12 weeks. | 12 weeks |
| Reported quality of life measured by Ferrans and Powers Quality of Life Index | The Ferrans and Powers Quality of Life Index (QLI) will be used to assess quality of life. The QLI is a 35 question instrument that uses a 6 point scale ranging from "very unimportant (lower end of the scale)" to "very important (higher end of the scale)". The outcomes of these scales are averaged to compute the total score. The QLI is valid, reliable, sensitive to change in both CR and PR populations, and is available in English and in Spanish. The QLI will be administered at the index visit, 6 weeks and 12 weeks. | 12 weeks |
| Number of participants hospitalized over four months using EHR review and ICD-10s | All-cause hospitalizations will be ascertained via the EHR using ICD-10 codes. Follow-up for hospitalizations will occur through 6 months. | 6 months |
| Number of participants who attend or log of 36 cardiovascular rehabilitation sessions measured by self-report in the Movn Application or through EHR/exercise physiologist report in RedCap | Attending or logging 36 exercise sessions. | 12 weeks |
| Type of healthcare utilization by individual participants, defined by routine clinical visits. Urgent care and emergency department visits will be measured using EHR. | Healthcare utilization, defined by routine clinical visits. Urgent care and emergency department visits will be measured using EHR. | 6 months |
| Safety measures to track injury from exercise will be assessed using EHR | Injury from exercise will be assessed using EHR including hospitalizations, emergency department visits, urgent care visits and mortality safety endpoints. They will be captured at the time of occurrence and records will be reviewed by the DSMB. | 12 weeks |
| Socioeconomic and clinical data will be collected from EHR. | Sociodemographic and clinical data will be collected from DH registration files including age, gender, self-reported race/ethnicity, primary language preference, comorbid diagnoses (hypertension, diabetes, chronic kidney disease, depression, substance abuse), measures of disease severity (left ventricular ejection fraction, FEV1) and medications. | 3.5 yrs |
| Unrelease | Dec 29, 2025 |
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| Release Date | Unrelease Date | Unrelease Date Unknown | Reset Date | MCP Release Number |
|---|---|---|---|---|
| Dec 9, 2025 | Dec 17, 2025 | |||
| Dec 29, 2025 | Dec 29, 2025 |
| ID | Term |
|---|---|
| D003324 | Coronary Artery Disease |
| D060050 | Angina, Stable |
| ID | Term |
|---|---|
| D003327 | Coronary Disease |
| D017202 | Myocardial Ischemia |
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
| D001161 | Arteriosclerosis |
| D001157 | Arterial Occlusive Diseases |
| D014652 | Vascular Diseases |
| D000787 | Angina Pectoris |
| D002637 | Chest Pain |
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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