Author(s): AMINI, M., MAROTTA, A., GHIOTTO, L., CASEROTTI, P., MUOLLO, V., CAVEDON, V., SCHENA, F., TARPERI, C., Institution: DEPARTMENT OF SPORT SCIENCE, Country: ITALY, Abstract-ID: 884

INTRODUCTION:
Individuals with chronic heart failure (CHF) and sarcopenia often experience severe exercise intolerance and reduced quality of life (QOL). While physical exercise is a highly effective treatment for these conditions, cardiac rehabilitation remains significantly underutilized due to various barriers. Eccentric cycling (EC) has emerged as a promising, low-metabolic demand modality that offers superior or equal physiological benefits with reduced cardiorespiratory strain compared to conventional training. However, research has focused primarily on quantitative physiological outcomes, leaving a gap in understanding participants' experiences. This study aimed to gather in-depth insights into participants’ motivations, perceptions, and challenges of a 12-week aerobic EC program among older adults with CHF and sarcopenia to inform better program design and improve clinical adherence.
METHODS:
A qualitative approach was adopted using three semi-structured focus groups with 14 older adults (12 men, 2 women; 75.7 ± 4 years) who completed a 12-week EC program. Data were analysed using Braun and Clarke’s six-phase thematic analysis approach. Codes were refined and organized into broader categories (subthemes) and developed into themes through collaborative discussions between the two independent coders.
RESULTS:
Three main themes emerged: (1) Motivation and expectation where initial engagement was driven by medical and family support, while adherence was sustained by personal goals for functional gain; (2) Perceived safety, acceptability, and functional benefit, participants reported a high degree of perceived safety and psychological acceptability, rooted in the dual expertise of the clinical team and a gradual training progression that mitigated initial muscle soreness. Additionally, significant functional gains were recognized by both participants and their social circles, positively impacting perceived QOL; and (3) Challenges, which included physical discomfort, but did not lead to discontinuation. Furthermore, logistical difficulties, including training frequency and the lack of structured guidance post-intervention, were identified as significant threats to long-term adherence.
CONCLUSION:
Aerobic EC is perceived as a safe, feasible, and beneficial intervention by older adults with CHF and sarcopenia. Feasibility is strongly linked to professional supervision, structured clinical support, and the inherent safety of the EC ergometer. These findings suggest that EC can be an effective modality for sustaining long-term engagement and provide a foundation for refining rehabilitation strategies specifically tailored for individuals with severe exercise intolerance.