@article{oai:soar-ir.repo.nii.ac.jp:00004209,
 author = {花岡, 正幸 and 浅川, 俊 and 西村, 良平 and 川崎, 洋一郎 and 漆畑, 一寿 and 久保, 惠嗣},
 issue = {3},
 journal = {信州医学雑誌},
 month = {Jun},
 note = {A questionnaire survey was carried out to investigate the frequency of symptoms or illness during group mountain climbing at junior high schools in Nagano Prefecture from 2001 to 2005 via the accompanying doctors or school health workers. The results revealed that an average 17.2% of the students showed some symptoms or illness during mountain climbing in this 5-year period. The frequencies of symptoms were, in order, headache(4.16%), stomach ache (3.36%), nausea/vomiting(2.43%), injury    (1.73%) and fever(1.46%). Although rare, hyperventilation syndrome (0.23%) and bronchial asthma attack (0.19 %) were also observed. Symptoms and illness occurred more frequently in cloudy weather (24.7%) than in either sunny (16.5%) or rainy weather (16.5%). Such occurrences manifested themselves more frequently on Mt. Jonen (24.6%) and Mt.Nishikoma (20.1%)than on Mt.Norikura (8.1%).All events were mild and no severe cases or death were reported throughout the five years. In this investigation,we found that more than 10% of the students who participated in the group mountain climbing manifested some symptoms or illnesses,particularly symptoms which may result in acute mountain sickness., Article, 信州医学雑誌 56(3): 133-140(2008)},
 pages = {133--140},
 title = {長野県中学校集団登山における疾病発生状況},
 volume = {56},
 year = {2008}
}