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The purpose of this study is to investigate the impact of integrating aerobic, respiratory and cognitive training in acute heart failure.
Patients with acute heart failure often experience severe dyspnea, muscle weakness, and cognitive decline during hospitalization, which together impair recovery and increase the risk of rehospitalization. Respiratory muscle dysfunction contributes to exercise intolerance and worsened prognosis, highlighting the importance of targeted inspiratory training. Likewise, immobilization leads to peripheral muscle deconditioning, while cognitive impairment is associated with poor adherence to treatment and lower quality of life.
Pharmacological therapies remain the cornerstone of acute heart failure management; however, they do not directly address these functional and cognitive complications. Consequently, non-pharmacological strategies have gained increasing attention as adjunctive treatments, offering potential benefits without the risks of drug-related side effects.
It is hypothesized that patients with acute heart failure require a multidimensional rehabilitation program that simultaneously supports respiratory, muscular, and cognitive functions. The BLM approach-combining arm ergometer exercise, inspiratory muscle training, and computerized cognitive training-may represent a novel, safe, and effective strategy to accelerate recovery, improve functional outcomes, reduce hospital stay, and potentially lower readmission rates.
Few clinical trials have evaluated such an integrative program in the acute hospital setting. If proven effective, this approach could be incorporated into routine cardiac rehabilitation protocols, providing holistic care that addresses both physical and cognitive dimensions of heart failure.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Aerobic training + Inspiratory muscle training + Cognitive training + Conventional therapy | Experimental | Twenty patients will receive a comprehensive intervention program consisting of aerobic training, inspiratory muscle training, and cognitive training in addition to conventional therapy. The intervention will be implemented throughout the hospitalization period and will continue for a minimum duration of three weeks. |
|
| Conventional therapy | Active Comparator | Twenty patients will receive conventional therapy only. The intervention will be implemented throughout the hospitalization period and will continue for a minimum duration of three weeks. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Aerobic training | Other | Participants in the experimental group will receive arm ergometer training performed at the bedside for 10-15 minutes, twice daily, at low-to-moderate intensity corresponding to 40-50% of the age-predicted maximum heart rate, under appropriate monitoring. The intervention will be continued throughout the hospitalization period for a minimum duration of three weeks. |
| Measure | Description | Time Frame |
|---|---|---|
| Functional Exercise Capacity | Functional exercise capacity will be assessed using the Six-Minute Walk Test (6MWT), a standardized submaximal exercise test that measures the total distance walked on a flat surface within six minutes. The 6MWT reflects the integrated performance of the cardiovascular, respiratory, and musculoskeletal systems and is a clinically meaningful indicator of functional status in patients with acute heart failure. | 3 weeks |
| Peak Oxygen Consumption | Peak oxygen consumption (VOâ‚‚ peak) will be estimated using the validated prediction equation developed by Vanhelst et al., which incorporates six-minute walk distance and body mass index. This method provides an indirect assessment of aerobic capacity and cardiorespiratory fitness in patients who are unable to perform maximal exercise testing during hospitalization. | 3 weeks |
| Inspiratory Muscle Strength | Inspiratory muscle strength will be evaluated by measuring maximal inspiratory pressure (MIP or PImax) using a calibrated manometer. This measurement quantifies the maximum static inspiratory pressure generated against an occluded airway and reflects the functional capacity of the inspiratory muscles. | 3 weeks |
| Expiratory Muscle Strength | Expiratory muscle strength will be assessed by measuring maximal expiratory pressure (MEP or PEmax) using a standardized manometer. MEP represents the maximal static pressure produced during forced expiration against an occluded airway and provides an objective measure of global expiratory muscle function. | 3 weeks |
| Cognitive Function | Cognitive function will be assessed using the validated Arabic version of the Montreal Cognitive Assessment (MoCA). This tool evaluates multiple cognitive domains, including attention, memory, executive function, language, and visuospatial abilities, and is suitable for detecting cognitive impairment in patients with acute heart failure. |
| Measure | Description | Time Frame |
|---|---|---|
| cardiac troponins | Cardiac troponin levels will be measured as a biomarker of myocardial injury to identify coexisting or precipitating cardiac events and to monitor patient safety during the intervention period. | 3 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Hajar Suleiman Zakaria, B.Sc | Contact | +20 10 69177694 | Hajar.afifi@must.edu.eg | |
| Alaa Mohamed Naguib, PhD | Contact |
| Name | Affiliation | Role |
|---|---|---|
| Azza Abdel Aziz, PhD | Ass. Professor, Cairo University | Study Chair |
| Alaa Mohamed Naguib, PhD | Lecturer, Cairo University | Study Director |
| Ahmed Mohamed Abdelmegeed ElFeky |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Cardiology department at El-Kasr El Einy University hospital | Giza | Egypt |
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| ID | Term |
|---|---|
| D000091942 | Cognitive Training |
| ID | Term |
|---|---|
| D000066530 | Neurological Rehabilitation |
| D012046 | Rehabilitation |
| D000359 | Aftercare |
| D003266 | Continuity of Patient Care |
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| Inspiratory muscle training | Other | Participants in the experimental group will receive inspiratory muscle training using a threshold device set at 30% of maximal inspiratory pressure, performed twice daily for 15 minutes per session. The training load will be progressively increased according to patient tolerance, and the intervention will be continued throughout the hospitalization period for a minimum duration of three weeks. |
|
| Cognitive training | Other | Participants in the experimental group will receive computerized cognitive training consisting of 20-minute daily sessions targeting attention, memory, and problem-solving abilities. The intervention will be implemented throughout the hospitalization period and will continue for a minimum duration of three weeks. |
|
| Conventional therapy | Other | Participants in both groups will receive conventional therapy. The intervention will be implemented throughout the hospitalization period and will continue for a minimum duration of three weeks. |
|
| 3 weeks |
| Lecturer, Misr University for science and technology |
| Study Director |
| D005791 |
| Patient Care |
| D013812 | Therapeutics |
| D006296 | Health Services |
| D005159 | Health Care Facilities Workforce and Services |