Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/329564
Type: Artigo
Title: Anaerobic Threshold By Mathematical Model In Healthy And Post-myocardial Infarction Men
Author: Novais
L. D.; Silva
E.; Simoes
R. P.; Sakabe
D. I.; Martins
L. E. B.; Oliveira
L.; Diniz
C. A. R.; Gallo
L.; Catai
A. M.
Abstract: The aim of this study was to determine the anaerobic threshold (AT) in a population of healthy and post-myocardial infarction men by applying Hinkley's mathematical method and comparing its performance to the ventilatory visual method. This mathematical model, in lieu of observer-dependent visual determination, can produce more reliable results due to the uniformity of the procedure. 17 middle-aged men (55 +/- 3 years) were studied in 2 groups: 9 healthy men (54 +/- 2 years); and 8 men with previous myocardial infarction (57 +/- 3 years). All subjects underwent an incremental ramp exercise test until physical exhaustion. Breath-by-breath ventilatory variables, heart rate (HR), and vastus lateralis surface electromyography (sEMG) signal were collected throughout the test. Carbon dioxide output (VCO2), HR, and sEMG were studied, and the AT determination methods were compared using correlation coefficients and Bland-Altman plots. Parametric statistical tests were applied with significance level set at 5%. No significant differences were found in the HR, sEMG, and ventilatory variables at AT between the different methods, such as the intensity of effort relative to AT. Moreover, important concordance and significant correlations were observed between the methods. We concluded that the mathematical model was suitable for detecting the AT in both healthy and myocardial infarction subjects.
Subject: Exercise
Oxygen Uptake
Surface Electromyography
Coronary Artery Disease
Editor: Georg Thieme Verlag KG
Stuttgart
Rights: aberto
Identifier DOI: 10.1055/s-0035-1555776
Address: https://www.thieme-connect.com/DOI/DOI?10.1055/s-0035-1555776
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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