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- 小関 誠
- 太陽化学株式会社
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- ジュネジャ レカ・ラジュ
- 太陽化学株式会社
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- 白川 修一郎
- 国立精神・神経センター精神保健研究所
書誌事項
- タイトル別名
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- THE EFFECTS OF L-THEANINE ON AUTOMATIC NERVOUS SYSTEM DURING SLEEP IN POSTMENOPAUSAL WOMEN
この論文をさがす
説明
L-theanine is one of the major amino acids, predominantly found in green tea leaves. Historically, this amino acid has been known as a relaxing agent. The current study examined the effects of L-theanine and a placebo on the automatic nervous system during sleep, using the pulse frequency demolition method. For this purpose, a cross over double blind study was performed on 20 females who were in their postmenopausal period and of 57.3±3.9 years old. During the study, each participant ingested 200mg of L-theanine or placebo before sleeping, for six consecutive days. The results showed that L-theanine significantly inhibited the excitement of the sympathetic nervous system and tended to noticeable enhance the activity of the parasympathetic nervous system, during sleep. Thus, the physiological effect of L-theanine on the automatic nervous system as estimated, was found to play a role in improving the quality of sleep. This study suggested that L-theanine was useful for promoting comfortable living states.
収録刊行物
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- 日本生理人類学会誌
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日本生理人類学会誌 13 (3), 147-154, 2008
日本生理人類学会
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詳細情報 詳細情報について
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- CRID
- 1390001204454056960
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- NII論文ID
- 110006951700
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- NII書誌ID
- AN1052804X
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- ISSN
- 24320986
- 13423215
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可