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  • Title: [The role of physical training in left ventricular performance and exercise tolerance in patients with chronic myocardial infarct].
    Author: Mitu F, Mitu M, Pandele GI.
    Journal: Rev Med Chir Soc Med Nat Iasi; 1997; 101(1-2):75-81. PubMed ID: 10756731.
    Abstract:
    UNLABELLED: The aims of the complex rehabilitation of the patients with chronic myocardial infarction are the improvement of the left ventricular performance and the increasing of the exercise capacity. OBJECTIVES: The objectives of the study is the long-term evaluation of some hemodynamic parameters at rest and during the stress test, at patients with chronic myocardial infarction during the physical training. METHODS: We investigated 132 patients with chronic myocardial infarction, mean age 51.4 +/- 8.5 years, during 36.9 +/- 31 months of follow-up. 81 followed a programme of physical training (the study group); 51 did not follow the training. There were determined the following parameters: cardiac rate (CR), blood systolic and diastolic pressures (BSP,BDP), time-pressure index (TPI), the metabolic equivalent (MET), the ejection fraction (EF), by echocardiographic and systolic time intervals methods, at rest and the exercise test, for each step. There have been followed the CR, BSP, BDP during the physical training. RESULTS: At the study group there is a significant reduction of CR at rest (p < 0.05) and during the training (p < 0.001). The exercise testing reveals the following: at the study group, TPI does not modify (GR increases but BSP decrease); at the second group there are significant increases of CR, BP and MET at all the steps of the testing (p < 0.001-0.0001). EF improves significantly (p < 0.05) only at patients with inferior myocardial infarction who followed the training. There is a good correlation between the results of EF measured by echographic and by systolic time intervals methods. CONCLUSIONS: Patients who underwent physical training improved the CR at rest and TPI and MET at each step. There is a slight rise of EP at the study group with inferior myocardial infarction.
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