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Abstract
主にハーブを用いた園芸作業の持つ療法的効果について,心理的指標である精神健康調査(GHQ)および気分プロフィール検査(POMS),生理的指標である唾液中コルチゾール濃度およびフリッカー値を用い,主観的および客観的に検証することを試みた.GHQから,園芸作業による神経症症状の改善傾向が認められた.POMSから,園芸作業には緊張や不安,抑うつ感,疲労感,当惑などの一時的な負の感情を減少させる効果があることが明らかとなった.唾液中コルチゾール濃度は作業前に比べて作業後に低下し,作業によるストレスの緩和効果か認められた.フリッカー値の変化から,屋外での栽培作業は室内でのクラフト作業に比べて中枢性疲労の回復効果か大きい可能性が示唆された.以上より,園芸作業は神経症症状や一時的気分の改善に有効であった.また,唾液中コルチゾール濃度とフリッカー値によって,園芸作業がストレスや中枢性疲労の解消に効果的であることを客観的に判断できた.質問紙による主観的評価に,客観的評価指標を組み合わせることで,園芸作業の療法的効果を総合的に判断し,より効果的なプログラムの構築と普及に寄与できると考えられた.
In this study, we investigated the psychological and physiological effects of horticultural activity, mainly involving herbs, among outpatients of a Kampo clinic using a general health questionnaire (GHQ), profile of mood state (POMS), salivary cortisol concentration and flicker test. Horticultural activity helped the outpatients lighten their symptoms of neurosis, and negative emotions, such as tension, anxiety, depression, fatigue and confusion. The salivary cortisol concentration after the activity were significantly decreased compared to that before the activity. This finding showed that the horticultural activity relieved stress in these outpatients. On comparison of open field activity (e.g. sowing seed, transplanting) with interior activity (e.g. making herb soap and scent bags), the open field activity in refreshing the outpatients' nervous fatigue was more effective than the interior activity. In conclusion, therapeutic effects of horticultural activity can be evaluated physiologically by the salivary cortisol concentration and the value of flicker test. Verification of the therapeutic effects of horticultural activity by the combination of psychological and physiological values can contribute to planning and prevalence of more effective activity programs.
Journal
- Horticultural research (Japan) [List of Volumes]
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Horticultural research (Japan) 6(3), 491-496, 2007-07-15 [Table of Contents]
The Japanese Society for Horticultural Science