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Effect of blood lactate concentration and the level of oxygen uptake immediately before a cycling sprint on neuromuscular activation during repeated cycling sprints

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Title: Effect of blood lactate concentration and the level of oxygen uptake immediately before a cycling sprint on neuromuscular activation during repeated cycling sprints
Authors: Matsuura, Ryouta Browse this author
Ogata, Hisayoshi Browse this author
Yunoki, Takahiro Browse this author →KAKEN DB
Arimitsu, Takuma Browse this author
Yano, Tokuo Browse this author
Keywords: Phosphocreatine
Metabolic acidosis
Surface electromyogram
Fatigue
Issue Date: Jul-2006
Publisher: 日本生理人類学会
Journal Title: Journal of physiological anthropology
Volume: 25
Issue: 4
Start Page: 267
End Page: 273
Publisher DOI: 10.2114/jpa2.25.267
Abstract: The purpose of this study was to determine whether neuromuscular activation is affected by blood lactate concentration (La) and the level of oxygen uptake immediately before a cycling sprint (preVO2). The tests consisted of ten repeated cycling sprints for 10 sec with 35-sec (RCS35) and 350-sec recovery periods (RCS350). Peak power output (PPO) was not significantly changed despite an increase in La concentration up to 12 mmol/L in RCS350. Mean power frequency (MPF) of the power spectrum calculated from a surface electromyogram on the vastus lateralis showed a significantly higher level in RCS350. In RCS35, preVO2 level and La were higher than those in RCS350 in the initial stage of the RCS and in the last half of the RCS, respectively. Thus, neuromuscular activation during exercise with maximal effort is affected by blood lactate concentration and the level of oxygen uptake immediately before exercise, suggesting a cyclic system between muscle recruitment pattern and muscle metabolites.
Description: 平成18年度日本生理人類学会奨励賞受賞
Rights: (c) 2006 日本生理人類学会
本文データは学協会の許諾に基づきCiNiiから複製したものである
(Relation)isversionof: http://ci.nii.ac.jp/naid/110004751592/
Type: article
URI: http://hdl.handle.net/2115/32951
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: 松浦 亮太

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