EFEITOS DO TREINAMENTO AERÓBIO SOBRE OS PARÂMETROS HEMODINÂMICOS, AUTONÔMICOS E INFLAMATÓRIO DE PACIENTES APÓS CIRURGIA DE REVASCULARIZAÇÃO DO MIOCÁRDIO.

Abstract

The aim of the present study was to investigate the effects of aerobic training on autonomic and hemodynamic parameters, and on plasma concentration of interleukin-6 (IL-6) of patients undergoing coronary artery bypass grafting (CABG). The study sample consisted of 13 patients undergoing successful CABG. Before and after 8 weeks, we evaluated autonomic and hemodynamic parameters (arterial pressure, heart rate and double product) [frequency indices; Low Frequency (BF), High Frequency (AF), AF / BF balance; indexes in the time domain; standard deviation of the RR interval (SDNN), square root mean square of the differences between adjacent normal RR intervals (rMSSS) (ms2), percentage of heart rate greater than 50 (ms2) (PNN50)] and an inflammatory parameter (IL- 6). Aerobic training was performed twice a week, with a 48-hr rest interval between each session for 8 weeks. There were no significant changes in systolic blood pressure (124.15 ± 9.92 vs. 121.77 ± 10.28 mmHg), diastolic blood pressure (79.31 ± 6.42 vs. 76.08 ± 6.18 mmHg) and double product (9060.31 ± 1467.55 vs. 8810.08 ± 1259.08 mmHg - bpm. However, for the LF indices [70.55 ± 10.27 vs. 58.82 ± 18.13 (nu)], HF [29.27 ± 10.30 vs. 41.07 ± 18.15 (nu)] and LF/HF (2.86 ± 1.46 vs. 2.01 ± 1.54) there were significant differences. Additionally, after 8 weeks of aerobic training a significant reduction in the concentration of IL-6 (644.60 ± 475.12 vs. 403.97 ± 226.50 pg/ml) was observed. The practice of aerobic training improved autonomic parameters, as well as reduced inflammation in patients undergoing CABG.