Physiological and Psychological Effects of Forest Therapy on Middle-Aged Males with High-Normal Blood Pressure

Hiroko Ochiai, Harumi Ikei, Chorong Song, Maiko Kobayashi, Ako Takamatsu, Takashi Miura, Takahide Kagawa, Qing Li, Shigeyoshi Kumeda, Michiko Imai and Yoshifumi Miyazaki
Additional contact information
Hiroko Ochiai: Department of Plastic and Reconstructive Surgery, National hospital organization Tokyo Medical Center, Higashigaoka 2-5-1, Meguro-ku, Tokyo 152-8902, Japan
Harumi Ikei: Center for Environment, Health and Field Sciences, Chiba University, Kashiwa-no-ha 6-2-1, Kashiwa, Chiba 277-0882, Japan
Chorong Song: Center for Environment, Health and Field Sciences, Chiba University, Kashiwa-no-ha 6-2-1, Kashiwa, Chiba 277-0882, Japan
Maiko Kobayashi: Department of Hygiene and Public Health, Nippon Medical School, Sendagi 1-1-5, Bunkyo-ku, Tokyo 113-8602, Japan
Ako Takamatsu: Department of Plastic and Reconstructive Surgery, National Center for Child Health and Development, Okura 2-10-1, Setagaya-ku, Tokyo 157-8535, Japan
Takashi Miura: Agematsu Town Office Industry & Tourism Department, Agematsu 159-3, Kiso, Nagano 399-5601, Japan
Takahide Kagawa: Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba City, Ibaraki Prefecture 305-8687, Japan
Qing Li: Department of Hygiene and Public Health, Nippon Medical School, Sendagi 1-1-5, Bunkyo-ku, Tokyo 113-8602, Japan
Shigeyoshi Kumeda: Nagano Prefectural Kiso Hospital, Kisomachi-fukushima 6613-4, Nagano 397-8555, Japan
Michiko Imai: Le Verseau Inc., 3-19-4 Miyasaka, Setagaya-ku, Tokyo 156-0051, Japan
Yoshifumi Miyazaki: Center for Environment, Health and Field Sciences, Chiba University, Kashiwa-no-ha 6-2-1, Kashiwa, Chiba 277-0882, Japan

IJERPH, 2015, vol. 12, issue 3, 1-11

Abstract: Time spent walking and relaxing in a forest environment (“forest bathing” or “forest therapy”) has well demonstrated anti-stress effects in healthy adults, but benefits for ill or at-risk populations have not been reported. The present study assessed the physiological and psychological effects of forest therapy (relaxation and stress management activity in the forest) on middle-aged males with high-normal blood pressure. Blood pressure and several physiological and psychological indices of stress were measured the day before and approximately 2 h following forest therapy. Both pre- and post-treatment measures were conducted at the same time of day to avoid circadian influences. Systolic and diastolic blood pressure (BP), urinary adrenaline, and serum cortisol were all significantly lower than baseline following forest therapy ( p < 0.05). Subjects reported feeling significantly more “relaxed” and “natural” according to the Semantic Differential (SD) method. Profile of Mood State (POMS) negative mood subscale scores for “tension-anxiety,” “confusion,” and “anger-hostility,” as well as the Total Mood Disturbance (TMD) score were significantly lower following forest therapy. These results highlight that forest is a promising treatment strategy to reduce blood pressure into the optimal range and possibly prevent progression to clinical hypertension in middle-aged males with high-normal blood pressure.

Keywords: forest therapy; high-normal blood pressure; adrenaline; cortisol; preventive medicine; Semantic Differential method; Profile of Mood State (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (40)

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