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Article

The Effects of an Artificial Garden on Heart Rate Variability among Healthy Young Japanese Adults

Graduate School of Medicine, Faculty of Health Sciences, Yamaguchi University, Yamaguchi 753-8511, Japan
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Int. J. Environ. Res. Public Health 2020, 17(24), 9465; https://doi.org/10.3390/ijerph17249465
Received: 23 October 2020 / Revised: 2 December 2020 / Accepted: 14 December 2020 / Published: 17 December 2020
(This article belongs to the Special Issue Greenspaces and Health: Measures and Methods)
Spending time in nature might positively influence mental health by inducing a relaxed state. Recently, gardens have been created on hospital rooftops in Japan to help inpatients recover from various physical and mental aliments. However, there is little evidence regarding any positive physiological effects of artificial gardens designed for health. The purpose of this study was to assess the psychological and cardiovascular responses incited by artificial natural environments. Japanese university students (n = 38) participated in a one-group pretest post-test experiment conducted at the Yamaguchi Flower Expo in Japan in October 2018, designed to assess whether exposure to four environments (forest, flowers, ocean, and artificial garden for health) influenced heart rate variability measures. After pretesting to determine baseline measurements, participants completed a circuit through the four natural environments. Following circuit completion, post-testing determined that the low frequency/high frequency ratio was significantly lower in the overall sample and the four areas had similar influences on heart rate variability. Findings suggest that exposure to nature by walking through natural areas and in rooftop artificial gardens might enhance the balance between the sympathetic and parasympathetic nervous systems. View Full-Text
Keywords: heart rate variability; artificial gardens; physiological effects; sympathetic nervous system; parasympathetic nervous system; nature environments heart rate variability; artificial gardens; physiological effects; sympathetic nervous system; parasympathetic nervous system; nature environments
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MDPI and ACS Style

Suenaga, H.; Murakami, K.; Murata, N.; Nishikawa, S.; Tsutsumi, M.; Nogaki, H. The Effects of an Artificial Garden on Heart Rate Variability among Healthy Young Japanese Adults. Int. J. Environ. Res. Public Health 2020, 17, 9465. https://doi.org/10.3390/ijerph17249465

AMA Style

Suenaga H, Murakami K, Murata N, Nishikawa S, Tsutsumi M, Nogaki H. The Effects of an Artificial Garden on Heart Rate Variability among Healthy Young Japanese Adults. International Journal of Environmental Research and Public Health. 2020; 17(24):9465. https://doi.org/10.3390/ijerph17249465

Chicago/Turabian Style

Suenaga, Hiromi, Kanako Murakami, Nozomi Murata, Syoriki Nishikawa, Masae Tsutsumi, and Hiroshi Nogaki. 2020. "The Effects of an Artificial Garden on Heart Rate Variability among Healthy Young Japanese Adults" International Journal of Environmental Research and Public Health 17, no. 24: 9465. https://doi.org/10.3390/ijerph17249465

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