著者
金子 国吉
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.17, no.1, pp.p1-18, 1977-12

1. はじめ2. 万剣呪儀3. タケミカヅチノ神の伝承4. まとめ
著者
佐々木 玲子 石沢 順子
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.55, no.1, pp.7-15, 2016-01

The purpose of this study was to assess the physical activity of preschool children during free play, using accelerometry and direct observation methods. Accelerometry is increasingly being used to objectively assess physical activity in children. Direct observation is often considered a criterion measure for physical activity in young children because of its practical and comprehensive nature. In this study, the participants were 6 preschool children aged 5-6 years. Children's physical activity levels (intensities) during free play (30 minutes) in the kindergarten were measured by the triaxial accelerometer (HJA-350IT ; Omron). These time series data were time-matched with behaviors and/or movement patterns from the video footage of children engaging in free play. Thus, we tried to indicate the physical activity levels of children during various activities and/or fundamental movements. Results were as follows. 1) Skilled children were more active and performed more high-intensity physical activity than unskilled children did during free-play periods. The amount and intensity of physical activity was much lower in unskilled girls than in other children. 2) More types of activities and/or fundamental movements were performed by skilled children than by unskilled children. 3) Movement intensity of children during free-play activities was adequately classified. Based on these findings, a cut-off point of moderate-to-vigorous physical activity was determined.
著者
清水 富士子
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.25, no.1, pp.p19-29, 1985-12

1. はじめ2. 古代の神の観念3. 島々の祭り4. 祭りと芸能5. むすび
著者
辰沼 広吉
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.15, no.1, pp.p1-6, 1975-12

Introduction: While climbing mountains, the direct object is nature, therefore, consideration is given to the methods of recognition of nature, subjects to which recognition is to be given and techniques by which such recognition is to be exerted. Main subjects: 1) Recognition of physical nature As to the recognition of nature, we have a great number of discourses written since many years ago. Here, I like to take up the subjects of perceptive recognition; they are "Material" such as mountains, ice, snow, etc. which are commonly experienced, and can be seen and touched by us. These perceptive subjects are recognized as those in which sensory subjects are consolidated. These subjects represent the physically so-called facts which are observed directly and macrospically. Observations of this kind can average the movements of molecules which vary considerably. In some cases the difference in movements is large enough to make it enable to record only the general non-equilibrial error as if in the case of the movement of an object. If further studies are given to sensory subjects which are the most simple sensory subjects, objects are classified as chemical substances into objects of various kinds, and further divided into molecules and atoms. However, these physical subjects are static compound substances of molecules having the average invariability during a certain minimal period of time. However, as long as the mathematical power of probability theory is applied, we must know that there is a gap between the existence of such compound substances and the overall fact. Consequently, if a macroscopic method is used in the observation of nature, for example, an avalanche fall down to low places, which is an invariable fact. However, if consideration is given by using a microscopic method, we must be ready for admitting the limits of recognition as long as the theory of probability as existence is introduced. 2) Subjects of recognition The recognition of nature is the recognition from within nature, and the consciousness of natural relationships. Although the theory is classic, the mental phenomenon of a person who recognizes is a fact and at the same time has a meaning and value. Natural phenomena are facts and things happened. Firstly, natural phenomena and occurrences are observed by innate subjectivity which is represented by mathematics or theory. In this case experiences cannot escape from uncertainty. Especially, even if correctness is proved physically, it is not possible to include objectively all natural environmental conditions. What is called fate seems to call on us by chance, however, this is not true; in many cases we are visited by fate because we do not know all the causes which control it. Microscopically, it is impossible to predict exactly the location of an electron; it seems that the same probability theory is controlling, however, there is an essential difference in this case. Secondly, experiences are known as they really were, and foresighted recognition cannot be able to foresee exactly everything which will happen in the future. Here, there is a gap between experiences and foresighted recognition ; uncertainty of measurement is explained simply as what is unknown. As long as what has been said is admitted, it cannot but be said to be subjective. Results of observations rather show possibility than mathematical facts; this possibility will merely allow a probable conclusion as to some of future results. However, important is human relations with the general order, and in order to avoid partial contingency, it is essential to move by looking at the general order. Thirdly, the subject of recognition is the personality which points meaning and value to natural phenomena, and is the experiential subject which grasps historical and social actualities. For instance, mountain-climbing acts are moved by some motive, and mountains are climbed because the act is liked. Nextly, there is a process where the meaning and value are considered; and further, it is usual that danger makes its appearance. It is at this point that value and danger are often weighed, and as a result, an attitude to permit danger of some degree is generated naturally. 3) Techniques and the subject-environment medium (Description is omitted). Conclusion: Mountain climbing acts should in principle be made by recognizing macroscopically the order of nature in accordance with the law of cause and effect. On the other hand, inevitability and contingency must be recognized by means of the method to recognize from the microscopic standpoint, however, efforts should theoretically be made so as to make contingency naught. For men, as experiential subjects, it is difficult to recognize nature because they are part of it. However, apart from this problem, as long as we climb mountains because we are fond of mountain-climbing, it is very difficult for us to escape from the act, a historical reality, from the viewpoint of inevitability. Accordingly, efforts should always be made to fill up the experiential gap by means of pursuing scientifically the causes which control partial contingency. While, if viewed from the hisorical reality point, the established social structure and its process of dynamic progress are inevitably urging us to climb mountains. This is the inevitable tendency prevailing among the mountain climbers of today. In some cases they, due to the over-recognition of value or the temporary sense of excitement, may take a process in which they as men forget the joy of living in the midst of nature. In order to prevent disorder caused by such things as partial contingency, we are required to act properly by respecting order and by recognizing the importance of relations between human beings and the order of nature. Mountain climbings ought to be made by the liking of man and based on scientific investigations, however, the present tendency is that people climb mountains under conditions in which some of danger is involved, this is the reality.
著者
森下 愛子 船渡 和男
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.49, no.1, pp.9-13, 2010-01

The purpose of this study was to examine the changes in velocity and underwater movements during one stroke cycle in competitive breaststroke swimming. The subjects were 19 collegiate swimmers (11 men and 8 women with mean age, 20.9 ± 0.6 y and 20.0 ± 1.0 y; mean height, 173.7 ± 7.0 cm and 165.8 ± 3.8 cm; and mean mass, 66.1 ± 6.7 kg and 59.5 ± 3.9 kg, respectively). They wore a belt that was attached to Speed Meter (manufactured by Vine Inc) via a harness. Each swimmer covered a distance of 25 m twice with the breast-stroke at the highest speed possible. The best time was then analyzed. An underwater video camera (manufactured by YAMAHA K.K) was set up at the center of the pool (at 12.5 m from each end), and it captured pictures of a 5 m section (10 to 15 m). Image analysis revealed 2 acceleration phases in all subjects, which were to the "kick" and "pull" actions of the swimmers. This was agreed upon by the top swimmer of the literature review. Moreover, underwater movement could be estimated from the pattern of change in the speeds on the basis of the relationship between the 2 parameters in the absence of underwater movement.
著者
加藤 幸司
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.60, no.1, pp.1-6, 2021-01

The purpose of this study was to investigate the temporal and notational structures of mixed doubles and women's doubles games in badminton doubles events and obtain basic information for coaches and players in order to set up specific badminton training drills. Eleven matches of each event (n= 22) were selected from the top categories of BWF World Tour tournaments held from 2018 to 2019 and analyzed. Total rally time (XD:637.9 ± 106.7 s vs . WD : 1135.1 ± 523.7 s ; P< 0.05), rally time (XD: 8.2 ± 1.4 s vs . WD : 13.5 ± 4.2 s ; P< 0.05), percentage of time played (XD : 26.1 ± 3.1 % vs . WD : 35.3 ± 6.3%;P< 0.05), work density (XD : 0.35 ± 0.05 vs . WD:0.55 ± 0.16;P< 0.05), total shots (XD : 899.4 ± 139.8 vs . WD : 1350.8 ± 578.2;P< 0.05), and shots per rally (XD:11.4 ± 1.7 vs . WD:16.1 ± 4.4;P< 0.05) were significantly higher in the women's doubles event than in the mixed doubles event. Shot frequency showed a significantly lower value in the women's doubles event (XD:1.41 ± 0.04 vs . WD : 1.21 ± 0.06 ; P< 0.05). Tempo (total rally time / total shots) was significantly shorter in the mixed doubles than in the women's doubles (XD : 0.76 ± 0.02 s vs . WD : 0.83 ± 0.04 s ; P< 0.05). In conclusion, comparing the mixed doubles and the women's doubles, we found that the temporal and notational structures of both events were different. The significant differences in the data observed between the events may help coaches and players effectively and efficiently manage training and competition preparation in line with current badminton events characteristics.
著者
米村 昌二
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.5, no.1, 1965-09

I. 序言II. 調査方法III. 考察 1. 男子 (1) 年齢と競技種目 (2) 身長と競技種目 (3) 体重と競技種目 2. 女子 (1) 年齢と競技種目 (2) 身長と競技種目 (3) 体重と競技種目IV. 結論
著者
鳥海 崇 綿田 博人
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 = Bulletin of the Institute of Physical Education, Keio University (ISSN:02866951)
巻号頁・発行日
vol.56, no.1, pp.45-53, 2017-01

In this study, we calculate the team strengths of the Tokyo Big6 Baseball League teams from 2001 to 2015 seasons by using five mathematical and statistical methods; which are ① Keener's model using points in the standings, ② Keener's model using wins and losses, ③ Bradley-Terry model using wins and losses, ④ Offence-Defense methods using scores, and ⑤ Keener's model using a parameter derived from points and winning rate. Based on the 20 results whose standings of the points and the winning rates are on the same order, we calculate the Kendall rank correlation coefficient between both rankings derived from strengths and from points in each method. The average coefficients from 2001 to 2015 seasons show that Keener's model using wins and losses, Keener's model using a parameter, and Bradley-Terry model have high correlations (more than 0.9). On the other hand, Keener's model using points in the standings and Offence-Defense model have a low correlation (less than 0.9). We also calculate the strengths in the case that the team ranked 1st in the standings is ranked 2nd in terms of the winning rate. The three methods with high correlations show that the strength of the team ranked highest in terms of wining rate is greater than the team ranked second highest. This implies that the winning rate is a better indicator of a team's strength than its points in the Tokyo Big6 Baseball League standings from 2001 to 2015.
著者
須田 芳正 田中 博史 川合 武司 高橋 宏文 綿田 博人
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.39, no.1, pp.7-16, 2000-01

The purpose of this study was to compare and construct the cognitive style of various sports players, so that we could accumulate the references and ideas to this study. In this study, 37 volleyball players, 43 baseball players, 42 soccer players, 23 basketball players, 45 kendo players, 39 track and field players from university and total of 229 players had been contrasted. We have measured the cognitive style by applying EFT cognitive style test and compared each group's result. From the test's result, we have come up with these conclusions. The scores of volleyball players were meaningfully higher than that of another players. From this result, It has been clear that players of volleyball players tend to be more field-dependent that players of all.
著者
坂井 利彰
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.57, no.1, pp.1-7, 2018-01

On July 1, 2017, Japanese player Yuichi Sugita claimed a victory at the Antalya Open in Turkey. It was the first ATP title for the 28-year-old, who was ranked number 66 in the world at the time. It also marked his tenth year on the tour after turning a professional while still being a university student. His achievement demonstrated the possibility of traversing a different career path than a conventional one which is focused on nurturing elite players during their teen years. Hence, the purpose of this quantitative analysis is to further investigate the relations between a player's first ATP tour victory and his chosen career path.Having compared the rankings of players according to the age at which each player won their first ATP tournament, the study found that players who claimed their first tour victory at 25 or above do not necessarily rank lower than players who won their first title between 21 and 24. In fact, in most cases, players in the former group even go on to enjoy longer professional lives than those belonging to the latter category. This is primarily due to the fact that the large number of ATP points earned through a tournament victory can propel a player to a much higher ranking, giving him a better place in later competitions as a result of the way the ATP tour is structured.
著者
植田 史生 福本 修二 吉田 泰将 石手 靖 望月 康司 大嶽 真人
出版者
慶應義塾大学体育研究所
雑誌
体育研究所紀要 (ISSN:02866951)
巻号頁・発行日
vol.44, no.1, pp.25-33, 2005-01

For best performance in competitive sports, technique, stamina, spirit, and good conditioning are generally considered to be necessary. In Kendo a concert of "Shin-Gi-Tai (Mind-Technique-Body)" or "Shin-Ki-Ryoku (Mind-Spirit-Power)" is also an important element of a scoring hit. And as one becomes a more experienced player, he will notice the mind is the most crucial of all. When players do well in practice or matches, they most often say their "spirits" or "energies" are running high. These words sometimes mean concentration, perseverance, willpower, or fighting spirit. In this study a "Diagnostic Inventory of Psychological-Competitive Ability for Athletics 2 (DIPCA.2)" is conducted and analysis is made on the participants of the All Japan Kendo Federation Special Training Program and the members of the varsity Kendo teams of a "K" University and its affiliate high school. The results are as follows.1. In the comparison of the "five factors," national representatives returned high marks on "will to win," "mental concentration and stability," "confidence," and "strategic planning," while the ordinary participants of the training program scored high in "teamwork." However, no statistical significant difference was observed between these two groups.2. There was a significant difference in "confidence" in the "twelve degrees" between national representatives and ordinary participants.3. No significant difference was observed in "will to win" among all groups.4. Significant differences existed in "fighting spirit" and "perseverance" between college and high school students.