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      Short-Term Reproducibility of Ergometric Parameters in Functional Stress Test after Recent Myocardial Infarction

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          Abstract

          In order to assess the short-term reproducibility of the most important ergometric parameters, 108 males (mean age 50.3 ± 7.8 years) underwent a functional stress test (FST) on average 35 days after myocardial infarction. The exercise test was repeated 3 days later in the same conditions. Patients were fasting and in pharmacological washout. The following parameters were analyzed: total work performed (TWP), VO<sub>2</sub>, heart rate (HR), systolic blood pressure (SBP), arrhythmias and S-T segment depression and elevation. TWP and VO<sub>2</sub> values did not show any significant difference during the two tests under the various workloads. HR and SBP responses proved to be well reproducible in patients with HR and SBP not exceeding the mean values obtained from 222 normal subjects who underwent the same exercise test by more than ± 1 SD; reproducibility was significantly lower in the other patients, particularly in patients with HR and SBP exceeding normal values by more than ± 1 SD. Therefore, in this case, further FST are necessary to obtain more reliable parameters to decide on individual pharmacological and exercise prescriptions. Arrhythmias were reproducible up to 67% (p < 0.01) regardless of Lown’s class and the presence of S-T segment depression or elevation. S-T segment depression or elevation was reproducible up to 100%.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1983
          1983
          07 November 2008
          : 70
          : 3
          : 161-170
          Affiliations
          Fondazione Clinica del Lavoro, Istituto di Ricovero e Cura a Carattere Scientifico, Montescano Medical Center, and Department of Cardiology, Bioengineering Service, Montescano (Pavia), Italy
          Article
          173587 Cardiology 1983;70:161–170
          10.1159/000173587
          6616512
          © 1983 S. Karger AG, Basel

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          Page count
          Pages: 10
          Categories
          Exercise Testing and Rehabilitation

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