Changes in the Indices of Respiratory Functions in Japanese Adult Men during an Ascent of Mt. Fuji

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概要

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• The purpose of this study was to investigate changes in respiratory functions during an ascent of Mt. Fuji. Eight healthy Japanese men (age: 23.3 ± 2.3 years) volunteered to climb Mt. Fuji (3,776 m). Participants' expiratory forced vital capacity (FVC), forced expiratory volume per second (FEV1.0), percutaneous arterial oxygen saturation (SpO2) and degree of dyspnea sensation (DDS) were measured at the five points (Pre-Ground; altitude: 10 m, 5th station; altitude: 2,300 m, 7th station; altitude: 2,700 m, summit: 3,710 m and Post-Ground: 84 m). We reached to Summit at night (4:00 a.m.) and we reached other points during the day. The measurement indices were conducted soon after the subjects' arrival at each point. FVC at the 5th station and the summit were significantly lower than that at Pre-Ground and Post-Ground. There were no significant changes in FEV1.0. SpO2 significantly decreased during ascent. DDS at the summit was significantly higher than that at other points. In conclusion, climbers suffered additive stress to the respiratory system caused by hypobaric and hypoxic stresses, exercise stress after brief periods rest and the effects of autonomic nerve system including sleepiness.

• 2013-00-00

著者

• Tabuchi Akio

  Department Of Ophthalmology Kawasaki Medical School

• Onodera Sho

  Department Of Health And Sports Science Faculty Of Health Science And Technology Kawasaki University

• Hikosaka Kazuo

  Department Of Animal Science Faculty Of Agriculture Tohoku University:(present Address) Tohoku Denta

• Kobayashi Yasuko

  Department Of Agricultural And Biological Chemistry College Of Bioresource Sciences Nihon University

• Takagi Yusuke

  General Education Center, Tezukayama University

• Saito Tatsuya

  Doctoral Program in Health Science, Graduate School of Health Science and Technology, Kawasaki University of Medical Welfare

• Kobayashi Yasuko

  Department of Sensory Science, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare

• Tokutake Tomoki

  Department of Ophthalmology, Kawasaki Hospital, Kawasaki Medical School

• Kanenaga Keisuke

  Master's Program in Sensory Science, Graduate School of Health Science and Technology, Kawasaki University of Medical Welfare

• Ikeno masahiro

  Department of Sensory Science, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare

• Kanenaga Keisuke

  Master's Program in Sensory Science, Graduate School of Health Science and Technology, Kawasaki University of Medical Welfare

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