著者
中田 征克 出村 慎一 出村 友寛 山本 裕太 内山 応信 福留 彰教 田島 東海男
出版者
神奈川体育学会
雑誌
Journal of Kanagawa Sport and Health Science (ISSN:24367249)
巻号頁・発行日
vol.41, pp.1-4, 2008 (Released:2022-03-05)
参考文献数
15

This study aimed to examine the relationships between changes in the center of foot pressure (COP) during the static one leg standing posture and in the balance test on one leg with eyes closed. Subjects consisted of 51 healthy young males (height 173.1±4.3cm, body weight 66.9±5.9kg, and age 21.1±1.5years). Four COP factors were interpreted by applying factor analysis to a correlation matrix consisting of 32 parameters representing the 6 domains of distance, distribution of amplitude, area, velocity, power spectrum, and body sway vector which were used to evaluate COP sway. Unit time sway factor (F1) reflects movement distance (sway velocity) per unit time. Front-back sway factor (F2) and left-right sway factor (F3) reflect the amount of front-back sway and the amount of left-right sway, respectively. The high frequency band power factor (F4) reflects high frequency sway. The COP during the one leg standing posture for 90 sec was divided into three intervals (first interval : 0-30 sec, second interval : 30-60 sec, and third interval : 60-90 sec). F1 and F2 factors during the first interval were significantly higher than during the second and third intervals. The increase in front-back body sway may contribute to the ability to hold postural stability just after the front elevation of the right leg. F3 and F4 factors tended to increase with time. The duration time of balancing on one leg with eyes closed showed insignificant correlation with COP factors (F1-F4) in all intervals. COP factors may not be involved in balancing on one leg with eyes closed.
著者
出村 友寛 出村 慎一 松田 繁樹 長澤 吉則
出版者
日本教育医学会
雑誌
教育医学 (ISSN:02850990)
巻号頁・発行日
vol.53, no.4, pp.391-397, 2008 (Released:2021-10-27)
参考文献数
15

In order to increase the national presence of Japanese football, it is necessary to first understand the current prevalence. While it has been said that the prevalence of football varies considerably across the country, it has not been examined objectively. This study aimed to analyze the ratio of the number of football players, teams, and referees of each prefecture to the total population based on data published by the Japan Football Association. The total population, the number of football players, teams, referees, and high grade referees differed among each prefecture, and the three prefectures of Akita, Nara, and Wakayama were lower in the ratio of football players and teams to total population than the other prefectures. In addition, the number of teams showed a very high relationship (r=0.91) with the number of players and moderately-high relationships (r=0.70 and 0.73) with the referees. The relationships of the number of referees and high grade referees and of players and the number of both types of referees were moderate(r=0.55-0.68). From the present results, the prevalence of football differs among each prefecture and is lowest in the three prefectures of Akita, Nara, and Wakayama. The number of football referees is closely related to the prevalence of football.
著者
松田 繁樹 春日 晃章 花井 忠征 出村 友寛 香村 恵介
出版者
滋賀大学
雑誌
基盤研究(C)
巻号頁・発行日
2014-04-01

本研究の目的は裸足保育の効果を検証することであった.具体的には,幼児の浮き趾の発生状況および前後足圧荷重割合について,裸足保育を実施する園に通う園児および裸足保育を実施していない園に通う園児間で比較を行った.浮き趾の発生状況については横断的および縦断的データにより分析した.その結果,幼児期の裸足保育は男児の浮き趾および前後足圧荷重割合に影響を及ぼし,浮き趾を減少させること,および,後部の足圧荷重割合を少なくすることが明らかになった.