著者

若水 潤

雑誌

学習院大学スポーツ・健康科学センター紀要 (ISSN:13447521)

巻号頁・発行日

no.7, pp.27-38, 1999-02-01

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With this report, I consider the point where some social meaning or a social model is covered on the back of diet. Andmake clear the reason that is thought about when will get thinner even if young women ruin health. I consider a characteristic by the reason why the material of design is a body of oneself. When there is a feeling of some starvation for the present situation in a heart of people and anticipates liberation 丘om it, A person rides the fashion. The woman was made to stand alone in a frame of home in 70’s. The women expected what was recognized more in the world. hhink that this is a feeling of starvation that a woman in 70’s has had. The charges, the aesthetic standard f6r a woman were voluptuous figures to bring a richer image then, In gross build of a woman became good, and the voluptuous woman became行nd much when became 70’s that was not in need of the eating habits. And it was assumed that a thin figure to have a weak image was beautifu1. The women were going to be recognized for the by people in the world by narrowing. And in 90’sAman is similar, and a woman comes to go into the world, too, and the aesthetic value that a woman is special is not recognized as value standard in the world, ability became demand in order to be replaced. As the index that the ability that did not look like an eye appeared furthermore, the thing that there was not became demand for corpulence. Women showed ability and had to geUhinner so that it was recognized. Next,describe the body which is the o切ect which is going to let change. A person has used a body, but has not owned a body. Because a body is same as a person, a person can not feel an own body directy. A person borrows ahelp of the other person with some method in order to feel an own body, and she feels it as an image. For this reason, an error occurs by the perception, and when the other peerson does not exist, the problem that infbrmation does not exist in, too occurs. And because a person is same as a body, she can not treat a body freely. According to the Sato a body of a person is a cultural exsistence which is based on a anatomical and physiolosical existence. On this reason, a person is going to get thinner and makes effort in various ways, but there are many cases that does not show result. And” anormal value”as an index for it to be recognized does not agree with a standard value to keep health, and this” nonnal value”is reative furthermore. And if a person thinks that she wants to be recognized than anyone of circumference, she must get thinner than anyone of circumference. Accordingly she must get sterile because of what is recognized than a peerson of circumference without an end so long as it is not filled up. And there is the danger that even health is ruined.

著者

佐藤 陽治 岩本 淳 久保田 秀明 道上 静香 梅林 薫

出版者

学習院大学

雑誌

学習院大学スポーツ・健康科学センター紀要 (ISSN:13447521)

巻号頁・発行日

vol.8, pp.25-34, 2000-02

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Tennis used to be estimated that the exercise intencity was within the AT (Anaerobic Threshold) level formerly according to the preceding studies. There were, however, some reports which indicated that the playing load of modern tennis often overpassed the onset of blood lactate accumulation(OBLA). One of the possible explanations for exceeding the AT level in modern tennis is that the tempo of modern tennis may be rapider than before. Therfore, the present study was desighned to measure and compare the time between one ground stroke and next one in the tennis games respectively at 80's and the present, 1998-1999. The following results, statistically significant at 5% level, were obtained. 1)The rally (ground stroke) tempo at the present, 1998-1999 was rapider than 80's. without distinction of sex, 0.30(sec) in female, 0.14(sec) in male. 2)The rally (ground stroke) tempo of the net player was rapider than baseliner without distinction of sex, 0.20〜0.30(sec) in female at 80's, 0.18〜0.24(sec) in male at 80's, 0.06(sec) in male at 1999. 3)The rally (ground stroke) tempo in female at 80's was approximately 1.61 (sec) and it was 0.16(sec) slower than the tempo in male. The rally (ground stroke) tempo in female at the present, 1999 was equal to the tempo in male. The general conclusions drawn from these data is that the rally (ground stroke) tempo accelerating in modern tennis reinforces the intencity of exercise in tennis.

著者

佐藤 陽治 江口 淳一 岩嶋 孝夫 久保田 秀明 岩本 淳 梅林 薫

出版者

学習院大学

雑誌

学習院大学スポーツ・健康科学センター紀要 (ISSN:13447521)

巻号頁・発行日

vol.11, pp.1-26, 2003-03-31

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According as the rally tempo is accelerated remarkablely in recent tennis the service stroke that carrys out a preemptive oppotunity to attack takes on acqire importance more than ever. The tactics on a conbination of the service in tennis consisites of two factors controling the ball that are the speed (pace) and the course (placement or direction) in order to attack and make the open court (space). The present study was designed to investigate the actual conditions of a conbination on the service speed by the male professional tennis players and to throw some light on the tactical effect of a conbination of the service speed. The service speed indicated with the apparatus set up in a corner of the court was taken note. The service speed of the all points for 6 to 9 consecutive service games by six players in three singles matches was recorded. The numerical value of service speed indicated the initial speed. Those three matches were played at the first and second round in Australia Open taken place in 2001. The courts of these three games were the center court (Rod Laver Arena) and the first court (Vodafone Arena). The numbers 8 (ATP ranking is 23 rd.), 9. (ditto 2 nd.) and 28 (ditto 6 th.) seed players were included in these three matches. The investigations yielded the following results. a) There is a significant correlationsip between the first service speed and the height of the players. b) Winners' ratio for gaining point started from the first service ratio are higher than losers. c) The maximum or mean first service speed of winners was rapider than one of lossers. d) The number 28 (ATP ranking is 6 th.)seed player (G. Rusedoski : GBR) who had a rapid first service of prominence among the players participating in the championships did not make frequent use of high speed first services, and made freely use of slow speed first services. e) The player who competed with the number 28 seed player also had high speed first services, maximum and mean speed of his firstservice were respectively 214 (km/h) and 192. 7 (km/h), he made however few use of slow first service, so that his services showed no combination and monotony of first services f) The number 8 seed and 23 rd. ATP ranking player (P. Sampras) had the rapidest mean 2 nd. service speed of significance and the amplitude of speed was also largest. g) A decline in successful ratio of first service developed a tendency to lead the game of confusion, strain and loss. h) There was no common trend in the first service speed of all six players under any point situations. Three players that had the high speed service showed however respective peculiarities of significance under some point situations. From these results mentioned above, following tactical knowledges were noted. As the point percentage from the first service is ordinarily higher than from the 2 nd. service, it is important to raise the ratio of first service for average players in first service speed, and especialy for smaller players. And it is more effectual to use a change-up first service and to make a show of the combination with various service speeds in oder to keep the service game for the players who can hit even high speed first services over 200 (km/h).