Objective: to estimate the dynamic of physical capacity (PC) and quality of life (QoL) in recipients after heart transplantation (HTx). Methods: We analyzed the data collected from January 2010 to December 2019 where 131 heart transplant patients (mean age - 47±13 year-old; 100 – male) were included. Recipients performed cardiopulmonary exercise test (CPET) before, 3 months, 1 and 3 years after HTx. Dynamics of VO2peak and ventilatory efficiency (VE/VCO2slope) were measured. Physical activity (PA) was defined by IPAQ questionnaire. We estimated the dynamic of physical (PCS) and mental component summary (MCS) by SF-36 questionnaire. Results: In 3 months PC significantly increased (VO2peak – 15.6±0.5 ml/min/kg, p<0.001; VO2pred – 53.8±1.7, p<0.001) and VE/VCO2slope decreased (38.2±1.1, p=0.004). Following 1 year after HTx level of PC continue improving (VO2peak – 18.5±0.5 ml/min/kg, p<0.001; VO2pred – 66.3±2.1, p<0.001; VE/VCO2slope – 36.3±0.9, p=0.148) and results remain stable in 3 years (VO2peak – 18.7±0,5, p=0.130; VO2pred – 67.9±1.9, p<0.001; VE/VCO2slope – 36.8±0.9, p=0.017). According to IPAQ results, less than half of patients were physically active (3 months after HTx – 39% (n=45 from 115); 1 year – 46% (n=50 from 109); 3 years – 48% (n=34 from 71), others preferred a sedentary lifestyle. Three months after HTx 58% reached normal values of PC, in 1 year – 68% and in 3 years – 66%. Physically active recipients showed better results of VO2peak than those who had sedentary lifestyle (3 months – 17.0±0.8 vs. 15.2±0.5, p=0.032; 1 year – 19.4±0.8 vs. 16.9±0.4, p<0.001). PCS also increased (3 months – 41.4±1.1, p<0.001; 1 year – 46.6±1.0, p<0.001) and in 3 years remained stable (46.6±1.0, p=0.882). At the same time in 3 months after HTx MCS improved (48.1±0.9, p=0.001) but then started to slowly decrease (1 year – 46.7±0.8, p=0.064; 3 years – 45.4±0.8, p=0.117). We found correlations between age and CPET results (VO2peak - 3 months (r=-0.460, p<0.001), 3 years (r=-0.320, p=0.011); VE/VCO2slope - 3 months (r=0.419, p<0.001), 1 year (r=0.381, p=0.001), 3 years ((r=0.355, p=0.005)) and PCS (3 months – r=-0.391, p<0.001; 1 year – r=-0.341, p<0.001; 1 year – r=-0.363, p=0.002). There were correlations between VO2peak and donors’ age (1 year – r=-0.318, p=0.006; 3 years - r=-0.337, p=0.008) and PA (1 year – r=0.313, p=0.006; 3 years - r=-0.337, p=0.008). The levels of PCS correlated with VO2peak (3 months - r=0.366, p=0.005; 1 year – r=0.397, p<0.001; 3 years – r=0.361, p=0.006) and with VE/VCO2slope (1 year – r=-0.441, p<0.001; 3 years – r=-0.378, p=0.004). Conclusion: All heart transplant recipients improved their physical capacity and quality of life and remained levels of them stable long-term after HTx. Physically active patients showed better results while the older donor and/or recipient’s age are negative factors in reaching normal values of VO2peak.