New method for detecting anaerobic threshold from heart rate recording

Yoshiharu Yamamoto; Yasuo Kawakami; Yoshio Nakamura; Kouichi Mokushi; Yoshiteru Mutoh; Mitsumasa Miyashita

New method for detecting anaerobic threshold from heart rate recording

Yoshiharu Yamamoto, Yasuo Kawakami, Yoshio Nakamura, Kouichi Mokushi, Yoshiteru Mutoh, Mitsumasa Miyashita

School of Sport Sciences

Research output: Contribution to conference › Paper

1 Citation (Scopus)

Abstract

The authors detect the anaerobic threshold (AT) only from heart rate (HR) recording. Ten subjects performed 13-min cycle exercise on an electrically braked ergometer. The work rate (WR) varied between 40-100 by a pseudorandom binary sequence (dt = 1 s, 8 bits, 3 cycles), while HR (beats/min) was calculated every second from R-R intervals. Frequency analysis revealed that the transferred gains from WR to HR at the frequencies of 0.1, 0.2, and 0.3 Hz were less attenuated for all subjects comparing to those of the other frequencies. Therefore, each subject performed incremental exercise (mean Δ= 0.33 W/s) with the compounded sinusoidal fluctuation. From this study, it is concluded that AT can be determined only from HR recording. As HR is one of the easiest parameters to measure, especially during exercise, evaluation of AT would therefore be easier by this method.

Original language	English
Pages	265-266
Number of pages	2
Publication status	Published - 1988 Nov 1
Event	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society - New Orleans, LA, USA Duration: 1988 Nov 4 → 1988 Nov 7

Other

Other	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society
City	New Orleans, LA, USA
Period	88/11/4 → 88/11/7

ASJC Scopus subject areas

Engineering(all)

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Yamamoto, Y., Kawakami, Y., Nakamura, Y., Mokushi, K., Mutoh, Y., & Miyashita, M. (1988). New method for detecting anaerobic threshold from heart rate recording. 265-266. Paper presented at Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, New Orleans, LA, USA, .

New method for detecting anaerobic threshold from heart rate recording. / Yamamoto, Yoshiharu; Kawakami, Yasuo ; Nakamura, Yoshio; Mokushi, Kouichi; Mutoh, Yoshiteru; Miyashita, Mitsumasa.

1988. 265-266 Paper presented at Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, New Orleans, LA, USA, .

Research output: Contribution to conference › Paper

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abstract = "The authors detect the anaerobic threshold (AT) only from heart rate (HR) recording. Ten subjects performed 13-min cycle exercise on an electrically braked ergometer. The work rate (WR) varied between 40-100 by a pseudorandom binary sequence (dt = 1 s, 8 bits, 3 cycles), while HR (beats/min) was calculated every second from R-R intervals. Frequency analysis revealed that the transferred gains from WR to HR at the frequencies of 0.1, 0.2, and 0.3 Hz were less attenuated for all subjects comparing to those of the other frequencies. Therefore, each subject performed incremental exercise (mean Δ= 0.33 W/s) with the compounded sinusoidal fluctuation. From this study, it is concluded that AT can be determined only from HR recording. As HR is one of the easiest parameters to measure, especially during exercise, evaluation of AT would therefore be easier by this method.",

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AU - Yamamoto, Yoshiharu

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AU - Nakamura, Yoshio

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AU - Miyashita, Mitsumasa

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N2 - The authors detect the anaerobic threshold (AT) only from heart rate (HR) recording. Ten subjects performed 13-min cycle exercise on an electrically braked ergometer. The work rate (WR) varied between 40-100 by a pseudorandom binary sequence (dt = 1 s, 8 bits, 3 cycles), while HR (beats/min) was calculated every second from R-R intervals. Frequency analysis revealed that the transferred gains from WR to HR at the frequencies of 0.1, 0.2, and 0.3 Hz were less attenuated for all subjects comparing to those of the other frequencies. Therefore, each subject performed incremental exercise (mean Δ= 0.33 W/s) with the compounded sinusoidal fluctuation. From this study, it is concluded that AT can be determined only from HR recording. As HR is one of the easiest parameters to measure, especially during exercise, evaluation of AT would therefore be easier by this method.

AB - The authors detect the anaerobic threshold (AT) only from heart rate (HR) recording. Ten subjects performed 13-min cycle exercise on an electrically braked ergometer. The work rate (WR) varied between 40-100 by a pseudorandom binary sequence (dt = 1 s, 8 bits, 3 cycles), while HR (beats/min) was calculated every second from R-R intervals. Frequency analysis revealed that the transferred gains from WR to HR at the frequencies of 0.1, 0.2, and 0.3 Hz were less attenuated for all subjects comparing to those of the other frequencies. Therefore, each subject performed incremental exercise (mean Δ= 0.33 W/s) with the compounded sinusoidal fluctuation. From this study, it is concluded that AT can be determined only from HR recording. As HR is one of the easiest parameters to measure, especially during exercise, evaluation of AT would therefore be easier by this method.

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