Changes in arousal level by differential exercise intensity

Keita Kamijo, Yoshiaki Nishihira, Arihiro Hatta, Takeshi Kaneda, Tetsuo Kida, Takuro Higashiura, Kazuo Kuroiwa

研究成果: Article査読

110 被引用数 (Scopus)


The purpose of the present study was to investigate the influence of exercise intensity on arousal level. Twelve subjects (22-33 years) performed a S1-S2 reaction time task consisting of warning stimulus (S1) and imperative stimulus (S2) in a control condition, and again after low, medium, and high intensity pedaling exercises. During this task, contingent negative variation (CNV) and spontaneous electroencephalogram before S1 were measured as indicators for arousal level. CNV amplitude after high intensity pedaling exercise was significantly smaller than after medium pedaling exercise. Compared to the control condition, relative power value of α waves increased after the high intensity exercise. These results suggested that arousal level was reduced after high intensity exercise and reached a state near optimal level after medium intensity exercise. The findings also suggested that changes in CNV amplitude by differences in exercise intensity followed an inverted-U shaped dose response curve. The present study supported the view that CNV amplitude and arousal level followed an inverted-U relationship. It is concluded that differences in exercise intensity influenced arousal level.

ジャーナルClinical Neurophysiology
出版ステータスPublished - 2004 12月

ASJC Scopus subject areas

  • 臨床神経学
  • 放射線学、核医学およびイメージング
  • 神経学
  • 感覚系
  • 生理学(医学)


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