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Erschienen in: European Journal of Applied Physiology 10/2019

12.08.2019 | Original Article

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

verfasst von: Nobuhiko Akazawa, Naoko Kobayashi, Yuki Nakamura, Hiroshi Kumagai, Youngju Choi, Seiji Maeda

Erschienen in: European Journal of Applied Physiology | Ausgabe 10/2019

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Abstract

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.
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Metadaten
Titel
Effect of sleep efficiency on salivary metabolite profile and cognitive function during exercise in volleyball athletes
verfasst von
Nobuhiko Akazawa
Naoko Kobayashi
Yuki Nakamura
Hiroshi Kumagai
Youngju Choi
Seiji Maeda
Publikationsdatum
12.08.2019
Verlag
Springer Berlin Heidelberg
Erschienen in
European Journal of Applied Physiology / Ausgabe 10/2019
Print ISSN: 1439-6319
Elektronische ISSN: 1439-6327
DOI
https://doi.org/10.1007/s00421-019-04205-7

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