Identification of anaerobic threshold during dynamic exercise in healthy men using kolmogorov-sinai entropy

Author

Silva, Fmhsp ; Filho, Ac Silva ; Murta, Lo, Jr. ; Lavrador, Mas ; Marães, Vrfs ; Moura, Ms ; Catai, Am ; Silva, E. ; Maciel, Bc ; Gallo, L., Jr.

Author_Institution

Sao Paulo Univ., Ribeirao Preto

fYear

2005

fDate

25-28 Sept. 2005

Firstpage

731

Lastpage

734

Abstract

During dynamic physical exercise there is a changing point in physiological state called Anaerobic Threshold (AT). Some respiratory and cardiovascular variables, including heart rate variability (HRV), experiment substantial changes at this point. In this work we measure the AT using Kolmogorov-Sinai Entropy applied to HRV time series. This procedure has two major advantage: a) it is non-invasive and b) it requests low cost equipments. The study also includes the comparison of AT values obtained by the mentioned method with another one obtained through a statistical analysis using the Auto Regressive Integrated Moving Average model

Keywords

autoregressive moving average processes; biomechanics; biomedical measurement; cardiology; entropy; pneumodynamics; statistical analysis; time series; Kolmogorov-Sinai entropy; anaerobic threshold identification; auto regressive integrated moving average model; dynamic physical exercise; healthy men; heart rate variability; physiological state; respiration; statistical analysis; time series; Biological system modeling; Biological systems; Biomedical signal processing; Cardiology; Costs; Energy measurement; Entropy; Heart rate variability; Statistical analysis; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 2005

Conference_Location

Lyon

Print_ISBN

0-7803-9337-6

Type

conf

DOI

10.1109/CIC.2005.1588208

Filename

1588208