Effect of sleep efficiency on salivary metabolite profile and cognitive function during exercise in volleyball athletes

Nobuhiko Akazawa, Naoko Kobayashi, Yuki Nakamura, Hiroshi Kumagai, Youngju Choi, Seiji Maeda*

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Purpose: Sleep duration is known to affect physiological and circadian metabolites and human homeostasis. However, little is known about the relationship between sleep quality and metabolite and cognitive function during exercise. Therefore, the aim of the present study was to investigate the impact of sleep quality on metabolite level and cognitive function in female volleyball athletes. Methods: Twelve female volleyball athletes participated in this study. Sleep efficiency was measured for 1 week using NemuriSCAN (Paramount Bed Co. Ltd., Japan) as an index of sleep quality. The subjects were divided into better (n = 6) and lesser (n = 6) sleep quality groups by the median value of sleep efficiency. Saliva samples were collected using a Salimetric oral swab cotton and salivary metabolites were analysed using capillary electrophoresis and time-of-flight mass spectrometry. The subjects performed Stroop tasks (simple and difficult tasks) at rest and during aerobic exercise in recumbent cycle ergometer at light and heavy intensity. Results: Increased sleep efficiency was found in the better sleep quality group, whereas total sleep time was similar. There were differences in urea cycle and Krebs cycle metabolites between the two groups; their levels were correlated with sleep efficiency. The difficult-task response time during heavy exercise was faster in the better sleep quality group. Conclusion: We demonstrated that sleep efficiency was associated with urea cycle and Krebs cycle metabolite levels and response time during heavy exercise in volleyball athletes. These results suggested that sleep quality may affect amino acid and energy metabolism and cognitive function during heavy exercise.

本文言語English
ページ(範囲)2215-2223
ページ数9
ジャーナルEuropean Journal of Applied Physiology
119
10
DOI
出版ステータスPublished - 2019 10 1
外部発表はい

ASJC Scopus subject areas

  • 整形外科およびスポーツ医学
  • 公衆衛生学、環境および労働衛生
  • 生理学(医学)

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