要旨:今まで日本の靴は足長,足囲,足幅のみがJIS規格(S 5037)で明記され,靴型製作ならびに靴選びの指標とされてきた.しかし,JIS規格や世界基準であるISO規格,その他の国の靴の規格項目においてどれも前足部のみが基準とされており,後足部についての基準がない.そのため踵部の靴擦れなどのトラブルを引き起こす原因の一つと考えられる.また後足部についての研究や調査報告は少なく特に踵形状についての研究は非常に少ない.そこで三次元足型計測機(DREAM GP 社 JMS-2100Cu)を用い12歳以上の女性健常者452名904名の足長,足囲,足幅,足高,踵幅,踵突状寸法を計測し,さらに踵部へのトラブル経験の有無をアンケートにより調査した.その結果,踵突状寸法と足長,足囲,足幅,足高,踵幅には相関がなかったが,靴擦れ経験の有無によって踵突状寸法に有意な差があったので報告する.
Investigation of components needed for simple shoes for use in facilities for the elderly
Keiko Nagai¹² Kaoru Abe²
1)Chukyo Hakimono Ltd. (2-23-1 Shinchihigashi-machi, Chita-city, Aich 478-0065 Japan, kookeiko@hotmail.co.jp)
2)Gradute School, Niigata University of Health and Welfare, Japan
Abstract:Subjects were thirty-eight elderly men and women with a mean age of 77.4 ± 6.3 years who had assistance need levels of 1 or 2 and used day-service healthcare facilities for the elderly. Subjects walked a distance of 10 m three times in each of the different pairs of shoes. With Type-4 shoes, Which had an added counter and fold-over instep strap, walking speed, stride length, and cadence all increased. This is thought to be because the heel instability that occurs when there is no counter at the time of heel contact is controlled, and the foot and shoe cohesion is improved with the instep strap at the time of toe off, so that the stride becomes longer and walking efficiency improves. Walking speed is also thought to increase due to the resulting increase in cadence.