Fibrilação atrial permanente: avaliação do treinamento físico no desempenho cardiovascular e na qualidade de vida

• Ano de defesa: 2018
• Autor(a) principal: Montenegro, Sergio Tavares [UNIFESP]
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de São Paulo (UNIFESP)
• Palavras-chave em Português: Cardiac arrhythmia; Exercise; Quality of life; Ergometry; Arritmia cardíaca; Exercício; Qualidade de Vida; Ergometria
• Link de acesso: https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=6304075; https://repositorio.unifesp.br/handle/11600/52535

Atrial fibrillation (AF) is the most common supraventricular arrhythmia in the adult population worldwide. The purpose of this study was to evaluate the cardiovascular performance, after a program of continuous aerobic physical training of moderate intensity and high intensity interval, in patients with permanent AF. A total of 45 adult patients diagnosed with permanent AF, of both sexes were randomized to form 3 study groups. G1 is the control group, which did not perform exercises. G2 is the moderate intensity physical training and G3 is the high intensity physical training. The patients were evaluated before and after being submitted to the physical training program. This program was performed three times a week at 48 hour intervals for a period of 12 weeks. In the initial evaluation were collected: the epidemiological and clinical characteristics, etiology, time of AF, ejection fraction and treatment performed. Quality of life, exercise testET (oxygen consumption, blood pressure (BP), heart rate (HR), double product (DP), cardiac output (CO), HR and BP variability, walking ability and the presence of ventricular arrhythmias through the Holter, were analyzed. The mean and minimum and maximum values for quantitative variables and the KruskalWallis test for comparison between groups were used as descriptive measure. For qualitative variables, they were presented as absolute and relative frequencies (%) and Fisher's exact test was used to verify the existence of statistical difference between the control groups, moderate and intensive. In order to compare before and after exercise, the Wilcoxon paired test and the MacNemar test were performed for quantitative and qualitative variables, respectively. The decisions were taken at the 5% level of significance, p < 0.05.The initial results analyzing pre and post exercise suggest an improvement in the groups that performed exercises. The moderate exercise when evaluated by the ergometric test increased significantly the duration of the test, the maximum VO2, maximum BP and METs. The group that underwent intensive treatment showed improvement in the quality of life in the general health domain. In the ET performance, it showed an increase in the duration of the test, in the VO2 maximum, in the number of METs and in the CO and in the 6minute walk test (WT), an increase of the distance traveled. In the comparison of the control with the two types of exercise by ET and WT 6 min, there was confirmation of a better cardiovascular performance. Comparing exercise modalities, intensive training improved quality of life in the functional capacity domain. In the evaluation of 12 valvular patients with AF, physical training was shown to be safe and reaffirmed the improvement of cardiovascular performance in this group of patients.