The aim of this randomized controlled clinical trial is to evaluate the efficacy of an 8-week sensorimotor and cognitive telerehabilitation program in frail and pre-frail older adults with stable chronic heart failure. The study will compare a synchronous telerehabilitation intervention with a caregiver-supervised home exercise program. The primary question is whether telerehabilitation improves functional capacity, measured by change in peak oxygen uptake (VO₂peak) on cardiopulmonary exercise testing, more than the control intervention. A key secondary question is whether telerehabilitation improves frailty status, measured by the Italian Frailty Index (IFI), compared with the control group. Secondary outcomes include quality of life, physical performance, cognitive function, treatment adherence, caregiver burden and stress, and selected biomarkers related to heart failure and frailty. Participants will undergo baseline and follow-up clinical, functional, cognitive, and laboratory assessments and will be followed for up to 24 weeks.
Frailty is a multidimensional condition associated with reduced physiological reserve, vulnerability to stressors, loss of functional capacity, and increased risk of hospitalization and dependency. In patients with chronic heart failure, frailty is highly prevalent and is associated with worse prognosis, lower exercise tolerance, poorer quality of life, and increased caregiver burden. Telerehabilitation may represent a scalable strategy to extend rehabilitation beyond hospital-based settings, improve continuity of care, and support safe home-based management in older adults with limited access to conventional services. Frailty is a multidimensional condition associated with reduced physiological reserve, vulnerability to stressors, loss of functional capacity, and increased risk of hospitalization and dependency. In patients with chronic heart failure, frailty is highly prevalent and is associated with worse prognosis, lower exercise tolerance, poorer quality of life, and increased caregiver burden. Telerehabilitation may represent a scalable strategy to extend rehabilitation beyond hospital-based settings, improve continuity of care, and support safe home-based management in older adults with limited access to conventional services. This study is designed to evaluate whether a structured sensorimotor and cognitive telerehabilitation program provides greater benefit than a caregiver-supervised home exercise program in older adults with stable chronic heart failure and pre-frailty or frailty. The intervention is delivered over 8 weeks through a synchronous digital platform with remote clinical supervision and physiologic monitoring, while the control group performs an individualized home-based program with caregiver support. The study focuses on functional capacity as the main efficacy domain, with additional evaluation of frailty status, quality of life, cognitive performance, treatment adherence, caregiver burden, and selected biomarkers associated with heart failure and frailty. Follow-up assessments are included to explore whether any treatment effects are maintained over time.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
70
Participants will receive an 8-week individualized sensorimotor and cognitive telerehabilitation program delivered through a synchronous digital platform. The intervention includes motor training and cognitive training tailored to frailty level, with real-time remote supervision by healthcare professionals and continuous monitoring of vital signs, including ECG, heart rate, oxygen saturation, and blood pressure. Participants and caregivers will receive initial training and technical support for use of the telerehabilitation system.
Participants will receive an 8-week individualized home-based sensorimotor and cognitive exercise program matched to frailty level. The program will be explained in person and then performed at home under caregiver or family supervision. It includes motor and cognitive exercises corresponding to those used in the intervention group, along with activity diary completion and monitoring of heart rate, oxygen saturation, and blood pressure according to study procedures.
Change in VO₂peak from baseline to 8 weeks
Functional capacity will be assessed as the change in peak oxygen uptake (VO₂peak, mL/kg/min) measured by cardiopulmonary exercise testing (CPET). The primary efficacy analysis will compare VO₂peak at 8 weeks between the telerehabilitation group and the control group, adjusted for baseline values.
Time frame: Baseline (T=0) and end of intervention (T=2, 8 weeks), follow up (T=4, 24 weeks)
Change in Italian Frailty Index (IFI)
Frailty status will be assessed using the Italian Frailty Index (IFI). Changes over time will be evaluated and compared between the telerehabilitation group and the control group.
Time frame: Baseline, 4 weeks, 8 weeks, 16 weeks, and 24 weeks
Change in Short Physical Performance Battery (SPPB) Score
Change in physical performance will be assessed using the Short Physical Performance Battery (SPPB), which includes tests of balance, gait speed, and chair stands. The SPPB provides a composite score ranging from 0 to 12, with higher scores indicating better lower extremity function and physical performance.
Time frame: Baseline, 4 weeks, 8 weeks, 16 weeks, and 24 weeks
Change in Quality of Life Assessed by Short Form-36 (SF-36)
The Short Form Health Survey - 36 items (SF-36) evaluates general health status across multiple domains, including physical functioning, role limitations, pain, general health, vitality, social functioning, emotional well-being, and mental health. The total score ranges from 0 to 100, with higher scores indicating better health status and quality of life.
Time frame: Baseline, 8 weeks, and 24 weeks
Change in Mini-Mental State Examination (MMSE) Score
Cognitive function will be assessed using the Mini-Mental State Examination (MMSE), a widely used screening tool for cognitive impairment. The MMSE evaluates orientation, attention, memory, language, and visuospatial skills. The total score ranges from 0 to 30, with higher scores indicating better cognitive function. Scores will be collected to monitor changes in cognitive status over time in patients participating in the cardiac rehabilitation program.
Time frame: Baseline, 4 weeks, 8 weeks, 16 weeks, and 24 weeks
Change in Montreal Cognitive Assessment (MoCA) Score
Cognitive performance will be assessed using the Montreal Cognitive Assessment (MoCA). Changes over time will be evaluated and compared between study groups.
Time frame: Baseline, 4 weeks, 8 weeks, 16 weeks, and 24 weeks
Biochemical Parameters
Change in B-type Natriuretic Peptide (BNP) Levels (picograms per milliliter)
Time frame: Baseline, 8 weeks, and 24 weeks
Change in Biochemical Parameters
Change in Atrial Natriuretic Peptide (ANP) Levels (picograms per milliliter)
Time frame: Baseline, 8 weeks, and 24 weeks
Change in Zarit Burden Interview-12 (ZBI-12) Score
Caregiver burden will be assessed using the 12-item Zarit Burden Interview (ZBI-12). Changes over time will be evaluated to explore the impact of the intervention on caregiver burden.
Time frame: Baseline and 8 weeks
Change in Perceived Stress Scale-10 (PSS-10) Score
Caregiver stress will be assessed using the 10-item Perceived Stress Scale (PSS-10). Changes over time will be evaluated to explore the impact of the intervention on caregiver stress.
Time frame: Baseline and 8 weeks
System Usability Scale (SUS) Score
Usability and acceptability of the telerehabilitation technology will be assessed in the telerehabilitation group using the System Usability Scale (SUS), a 10-item questionnaire with total scores ranging from 0 to 100, where higher scores indicate better usability.
Time frame: 8 weeks
Treatment Adherence
Adherence will be assessed as the percentage of scheduled motor and cognitive training sessions completed during the intervention period.
Time frame: Throughout the 8-week intervention period
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