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Oscillation of tissue oxygen index in non-exercising muscle during exercise

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Title: Oscillation of tissue oxygen index in non-exercising muscle during exercise
Authors: Yano, T. Browse this author →KAKEN DB
Afroundeh, R. Browse this author
Shirakawa, K. Browse this author
Lian, C-S Browse this author
Shibata, K. Browse this author
Xiao, Z. Browse this author
Yunoki, T. Browse this author →KAKEN DB
Keywords: tissue oxygen index
non-exercising muscle
fast Fourier transform
power spectra density
blood lactate
Issue Date: Sep-2015
Publisher: Akadémiai Kiadó
Journal Title: Acta physiologica hungarica
Volume: 102
Issue: 3
Start Page: 274
End Page: 281
Publisher DOI: 10.1556/036.102.2015.3.5
PMID: 26551743
Abstract: The purpose of the present study was to examine how oscillation of tissue oxygen index (TOI) in non-exercising exercise is affected during high-intensity and low-intensity exercises. Three exercises were performed with exercise intensities of 30% and 70% peak oxygen uptake ((V)over doto(2)peak) for 12 min and with exercise intensity of 70% (V)over doto(2)peak for 30 s. TOI in non-exercising muscle (biceps brachii) during the exercises for 12 min was determined by nearinfrared spectroscopy. TOI in the non-exercising muscle during the exercises was analyzed by fast Fourier transform (FFT) to obtain power spectra density (PSD). The frequency at which maximal PSD appeared (Fmax) during the exercise with 70% (V)over doto(2)peak for 12 min (0.00477 +/- 0.00172 Hz) was significantly lower than that during the exercise with 30% (V)over doto(2)peak for 12 min (0.00781 +/- 0.00338 Hz). There were significant differences in blood pH and blood lactate between the exercise with 70% V.o2peak and the exercise with 30% (V)over doto(2)peak. It is concluded that TOI in nonexercising muscle oscillates during low-intensity exercise as well as during high-intensity exercise and that the difference in Fmax between the two exercises is associated with the difference in increase in blood lactate derived from the exercise.
Type: article (author version)
Appears in Collections:教育学院・教育学研究院 (Graduate School of Education / Faculty of Education) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 矢野 徳郎

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