Snapshot evaluation of fatigue during skiing exercise

Author

Kiryu, Tohru ; Abe, Takeshi ; Gocho, Tetsuya ; Ushiyama, Yukihiko ; Okada, Morihiko

Author_Institution

Graduate Sch. of Sci. & Technol., Niigata Univ., Japan

Volume

5

fYear

1998

fDate

28 Oct-1 Nov 1998

Firstpage

2775

Abstract

We have measured and analyzed the heart rate variability (HRV) and myoelectric (ME) signals during skiing exercise for a whole day. To realize snapshot evaluation of functional activities for this long-term exercise, we developed a radio controlled remote data acquisition system, and then evaluated data using spectrum analysis. We compared the spectrum of the HRV between skiing and ski lift riding, within the target frequency bands, using the wavelet analysis. During skiing, we estimated the amplitude and frequency indices as ME parameters. Then we applied the principal component analysis and the ARX model to represent the changes in functional activities. The results quantitatively showed the time-varying features of dominant frequency components in HRV and the relationship between cardiovascular and muscular activities with the progression of fatigue

Keywords

autoregressive processes; biomedical telemetry; cardiovascular system; data acquisition; electrocardiography; electromyography; medical signal processing; principal component analysis; spectral analysis; sport; time series; ARX model; ECG; Hamming window function; amplitude indices; cardiovascular activities; fatigue; frequency indices; functional activities; heart rate variability; long-term exercise; muscular activities; myoelectric signals; principal component analysis; radio controlled remote data acquisition; ski lift riding; skiing exercise; snapshot evaluation; spectrum analysis; time series; time-varying features; wavelet analysis; Amplitude estimation; Control systems; Data acquisition; Data analysis; Fatigue; Frequency estimation; Heart rate variability; Radio control; Signal analysis; Wavelet analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.745254

Filename

745254