- Volume 28 Issue 6
Evaluation of Horticultural Therapy on the Emotional Improvement of Depressed Patients by Using Heart Rate Variability
심박변이도를 이용한 우울증 환자의 정서개선에 미치는 원예치료 효과 분석
- Song, Mi-Jin (Department of Environmental Horticulture, University of Seoul) ;
- Kim, Mi-Young (Department of Occupational Therapy, Seoul Metropolitan Eunpyeong Hospital) ;
- Sim, Iee-Sung (Department of Environmental Horticulture, University of Seoul) ;
- Kim, Wan-Soon (Department of Environmental Horticulture, University of Seoul)
- Received : 2010.08.09
- Accepted : 2010.09.24
- Published : 2010.12.31
To evaluate the effect of horticultural therapy (HT) on the emotional improvement of depressed patients, computer-based heart rate variability (HRV) was compared with self-report scale (SRS) known as existing subjective evaluation method. SRS included four test areas: mental stress scale (MSS), physical stress scale (PSS), Beck anxiety inventory (BAI), and Beck depression inventory (BDI). HRV was itemized into four parameters: standard deviation of the N-N intervals (SDNN), square root of mean squared difference of successive N-N intervals (RMSSD), total power (TP), and low-frequency/high-frequency ratio (LF/HF ratio). Thirty patients with depression at the same mental hospital participated in this study. 15 patients of the treatment group received HT once a week for three months, but the control group did not during the same period. As a result, the emotional improvement in treatment group was clearly identified through HRV as well as SRS. The significant difference was shown at three test areas (MSS, BAI, and BDI,
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