Oscillation in tissue oxygen index during recovery from exercise

Title:

Oscillation in tissue oxygen index during recovery from exercise

Creator:

Yano, T., Afroundeh, R., Shirakawa, K., Lian, C.-S., Shibata, K., Xiao, Z., and Yunoki, T.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:7c17e629-c031-4b7e-9c94-3ef68dd80799
uuid:7c17e629-c031-4b7e-9c94-3ef68dd80799
issn:0862-8408

Subject:

Fyziologie člověka a srovnávací fyziologie, kmitání, oscillation, tissue oxygen index, recovery from exercise, power spectra density, blood pH, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

It was hypothesized that an oscillation of tissue oxygen index (TOI) determined by near-infrared spectroscopy during recovery from exercise occurs due to feedback control of adenosine triphosphate and that frequency of the oscillation is affected by blood pH. In order to examine these hypotheses, we aimed 1) to determine whether there is an oscillation of TOI during recovery from exercise and 2) to determine the effect of blood pH on frequency of the oscillation of TOI. Three exercises were performed with exercise intensities of 30 % and 70 % peak oxygen uptake (Vo2peak) for 12 min and with exercise intensity of 70 % Vo2peak for 30 s. TOI during recovery from the exercise was analyzed by fast Fourier transform in order to obtain power spectra density (PSD). There was a significant difference in the frequency at which maximal PSD of TOI appeared (Fmax) between the exercises with 70 % Vo2peak for 12 min (0.0039±0 Hz) and for 30 s (0.0061±0.0028 Hz). However, there was no significant difference in Fmax between the exercises with 30 % (0.0043±0.0013 Hz) and with 70 % Vo2peak for 12 min despite differences in blood pH and blood lactate from the warmed fingertips. It is concluded that there was an oscillation in TOI during recovery from the three exercises. It was not clearly shown that there was an effect of blood pH on Fmax., T. Yano, R. Afroundeh, K. Shirakawa, C.-S. Lian, K. Shibata, Z. Xiao, T. Yunoki., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

Physiological research | 2016 Volume:65 | Number:2

Harvested from:

CDK

Metadata only:

false