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Vol.15(1993) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10649/465

Title: A fundamental study on a development of the system for approximate estimation of ventilatory threshold based on fourier transform of breathing curved line
Authors: 塩野谷, 明
Kashiwada, Kouji
三宅, 仁
Authors Affiliation: 長岡技術科学大学体育・保健センター
長岡技術科学大学生物系
長岡技術科学大学体育・保健センター
Physical Education and Health Care Center, Nagaoka University of Technology
Dept. of BioEngineering, Nagaoka University of Technology
Physical Education and Health Care Center, Nagaoka University of Technology
Keywords: Ventilatory Threshold
Fast Fourier Transform
Spectrum
Issue Date: Dec-1993
Publisher: 長岡技術科学大学
Journal Title: 長岡技術科学大学研究報告
Volume: 15
Start page: 77
End page: 84
Abstract: The purpose of this study was to develop the system for approximate estimation of ventilator threshold (VT). This system for approximate estimation of ventilator threshold was based on the fourier transform of breathing information (Breathing Curved Line). In this system, VT of subject was making decision by ventilator accelation, measured by energic metabolism measurement system, based on Davis reports. In addition. a breathing curved line detected by an using of thermintor was transformed to spcturm by fast fourier transform (FFT). This system led us to decide; 1) In case that the level of exercise work load was below VT level, the spectrum involved various components of frequency was detedted. 2) In case that the level of exercise work load was beyond VT level, the spectrum which the peak component of frequency corresponded to ventilator frequency cleared was detected.
language: en
Contents Version: publisher
URI: http://hdl.handle.net/10649/465
ISSN: 0388-5631
Appears in Collections:Vol.15(1993)

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