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Please use this identifier to cite or link to this item: http://ir.jwcpe.ac.jp/dspace/handle/123456789/1134

Title: 事前運動が最大強度運動時における2つの筋脱酸素化パラメータに及ぼす影響
Other Titles: Differential effects of prior exercise on two muscle deoxygenation parameters during maximal exercise
Authors: 大澤, 拓也
塩瀬, 圭佑
髙橋, 英幸
Osawa, Takuya
Shiose, Keisuke
Takahashi, Hideyuki
オオサワ, タクヤ
シオセ, ケイスケ
タカハシ, ヒデユキ
Faculty of Sports and Health Sciences, Japan Women’s College of Physical Education
Faculty of Sports and Health Science, Fukuoka University
Department of Sports Science, Japan Institute of Sports Science
Keywords: Near-infrared spectroscopy
Working muscle
Cycling
Issue Date: Mar-2019
Abstract: The purpose of this study was to investigate that the effects of prior exercise on two muscle deoxygenation parameters during maximal exercise were different. Seven active male volunteers (24±3 years) performed a heavy intermittent exercise test, composed of a 1-min maximal exercise (M-1), a 6-min exercise at the intensity of 65-70% of maximal oxygen uptake, and a 1-min maximal exercise (M-2), separated by 4-min rests. The changes of deoxygenated hemoglobin and myoglobin (d-HHb) and tissue oxygen saturation (d-StO2), assessed by near-infrared continuous-wave and spatially-resolved spectroscopies, respectively, were monitored from the vastus lateralis continuously. The d- HHb increased and the d-StO2 decreased during both M-1 and M-2 exercises. Compared to the M-1 exercise, d-StO2 was higher throughout the M-2 exercise (P<0.01), but not d-HHb (N.S.). These results suggest that, during 1-min maximal exercise, the d-StO2 was partially attenuated by the prior exercise-induced vasodilation, but not the d-HHb.
URI: http://ir.jwcpe.ac.jp/dspace/handle/123456789/1134
ISSN: 09183825
Appears in Collections:No.28

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