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Role of phase 3 cardiac rehabilitation in improving cardiorespiratory fitness
Session:
SESSÃO DE POSTERS 03 - REABILITAÇÃO CARDÍACA AO LONGO DO CONTINUUM DE CUIDADOS - DA PREVENÇÃO AOS RESULTADOS A LONGO PRAZO
Speaker:
Catarina Sena Silva
Congress:
CPC 2025
Topic:
J. Preventive Cardiology
Theme:
29. Rehabilitation and Sports Cardiology
Subtheme:
29.1 Exercise Testing
Session Type:
Cartazes
FP Number:
---
Authors:
Catarina Sena Silva; Miguel Azeredo Raposo; João Cravo; Madalena Lemos Pires; Mariana Borges; Gonçalo Sá; Pedro Alves da Silva; Nelson Cunha; Inês Aguiar-Ricardo; Fausto J. Pinto; Ana Abreu; Rita Pinto
Abstract
<p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000"><strong>Introduction: </strong></span></span></span></p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000">The cardiopulmonary exercise test (CPET) is nowadays considered the gold standard method to evaluate patients' cardiorespiratory fitness. It is an integral part of a structured cardiac rehabilitation (CR) phase 3 program, allowing tailored exercise training prescription for each patient. However, more studies are needed to better quantify CPET parameters improvements in long-term exercise-based CR programs. </span></span></span></p> <p> </p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000"><strong>Purpose: </strong></span></span></span></p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000">To compare CPET parameters and subsequent cardiorespiratory fitness gains in patients enrolled in a structured exercise-based phase 3 CR program at baseline and at 1 year follow-up.</span></span></span></p> <p> </p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000"><strong>Methods: </strong></span></span></span></p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000">Single center prospective cohort study of patients enrolled an exercise-based phase 3 CR program (2 or 3 times per week, 60mins/session, aerobic and strength training) between 2016 and 2024 . CPET were performed in symptom limited ramp protocol 10-20W/min in a cycle-ergometer at baseline and at 1 year follow-up. Parametric and non-parametric tests were performed as appropriate.</span></span></span></p> <p> </p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000"><strong>Results: </strong></span></span></span></p> <p style="text-align:justify"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000">We included 284 patients, 78% males, 61±11 years, where 82% of patients participated 3 times per week in the CR program and 188 patients (67%) completed a previous phase 2 CR program. Regarding CPET parameters, our data shows that at 1 year follow-up there was a substantial improvement in CPET parameters such as: maximum load (149±50 vs 165±59 W, p<0.001), VO2 at first ventilatory threshold (14.7±3.8 vs 16.3±4.7 mL/kg/min, p<0.001), VO2 peak (22.6±6.6 vs 24.3 ±7.4 mL/kg/min, p<0.001), percentage of predicted VO2 peak (98±19 vs 105±21%, p<0.001), peak PETCO2 (34±4.4 vs 35±4.9 mmHg, p<0.001). Finally, a Wilcoxon test indicated a statistically significant reduction in VE/VCO2 slope at follow-up (Z = -2.3, p=0.022). This improvement was consistent in the older population (above 70 years old) and in patients who did not complete a previous phase 2 program.</span></span></span></p> <p><br /> <span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000"><strong>Conclusions: </strong></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><span style="color:#000000">Our results showed an improvement in CPET parameters and cardiorespiratory fitness at 1 year follow-up highlighting the importance to participate in a long-term phase 3 CR program.</span></span></span></p>
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