校庭芝生化の実施と学校事故に関する基礎的研究: 2005〜2009年の東京都小学校を対象にした研究

摘要

東京都の区部·市部の公立小学校の校庭芝生化率の調査を行った。校庭芝生化率の2005〜2009年の経年変化と独立行政法人日本スポーツ振興センターの2005〜2009年の学校事故データとの関係を考察したところ，以下の知見が得られた。1) 2005〜2009年の期間に，東京都区部•市部の公立小学校の校庭芝生化率は上昇し4.1倍となった。一方，東京都区部•市部小学校の校庭における事故率は26%減少した。%The data of accidents in the elementary schools in the ward areas of Tokyo, urban districts of Tokyo were linked with the penetration rate of lawned schoolyard of relevant areas in order to research the relation between accidents occurring at elementary schools and the lawn laying conditions. The data of accidents of elementary schools were obtained from the NAASH (National Agency for the Advancement of Sports and Health), and the period of analysis was set as 5 years from 2005 to 2009. The data of penetration rate of lawned schoolyard of relevant areas were obtained with questionnaire survey. While the penetration rate of lawned schoolyard of elementary schools in Tokyo metropolitan area was elevated from 2005 to 2009, the accident rate occurred on schoolyards in relevant area was decreased. The school accidents especially occurred during physical education, cocurricular sports club activity, and school events such as field day were significantly decreased. Considering sorts of injury, the school accidents of incised wound and sprain were significantly decreased. It was found that the accident rate in schoolyard was decreased especially under cool condition of 2-8 ℃ and moderate condition of 18-24 ℃. Lawn laying might have significant effects on diminution of accidents occurred on schoolyard.