著者

小野 雄大 友添 秀則 根本 想

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.62, no.2, pp.599-620, 2017 (Released:2017-12-19)

参考文献数

94

被引用文献数

5

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In recent years, the way university sports are conducted has been under discussion. In particular, there is some concern about the balance between studies and competitive activities, which is important when considering the future of university sports in Japan. As no previous research has focused on sports recommendation admissions to universities in Japan, the present study first attempted to clarify the way in which this system has developed.  The following findings were obtained:  1. In Japan, even before the recommendation admission system was officially approved, athletes had been given preferential treatment in entrance examinations, which was not disclosed to the public or stipulated in application guides.  2. Soon after the recommendation admission system was officially approved, campus disputes worsened, which caused the preferential admission treatment of athletes to be severely criticized, making it difficult to continue with the conventional system any longer. Accordingly, during the period from the late 1960s to the early 1970s, universities abolished the preferential treatment given to athletes in entrance examinations.  3. Since the recommendation admission system was officially approved in 1967, the faculties of physical education at private universities, among others, started to actively admit athletes based on recommendation. These physical education faculties selected students based on physical skill tests to secure competent athletes. Thus, by matching the admission policy of the faculty with the sporting abilities of athletes, universities were able to secure competent athletes without having to impose a special admission quota for athletes.  4. In the 1980s, private universities played a leading role in conducting entrance examinations with a special admission quota for athletes. Waseda University launched the Special Selection System for Physical Education Major, which introduced a special admission quota for athletes, specified the athletic events and performances, and made the selection process widely known to the public. In conducting this selection, however, the university faced a dilemma of whether or not to employ it as the system for strengthening their sports teams.  5. In 1987, the Ad Hoc Council on Education, an advisory body of the Japanese Government on education, recommended that assessment of sports activities be taken into consideration in entrance examinations. The 1989, the Guidelines for University Entrance Examination, revised in accordance with the Council's recommendation, listed “adequate assessment of activities in sports, culture, etc.” as a selection method for university admission for the first time.

著者

中嶋 哲也

出版者

一般社団法人 日本体育・スポーツ・健康学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.66, pp.573-590, 2021 (Released:2021-09-01)

参考文献数

71

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The present study aimed to clarify the establishment of Judo etiquette during the wartime and postwar periods. Nakamura (2011) discussed Japanese martial arts etiquette in modern Japan. In his work, however, he dealt largely with Kendo etiquette, and inadequately addressed the history of Judo, as well as overlooking the period of Allied occupation (1945–1952). This article focuses on the reformation of Judo etiquette in that period and clarifies its historical background. It was revealed that, first, the enactment of etiquette in August 1940 was intended to be a criticism of Taro Inaba, who was excommunicated at the Kodokan. Inaba had criticized the Kodokan and the Dai Nippon Butokukwai, stating that when a judoka stands and bows with shizen hontai (natural posture) it reflects disrespect to the emperor. During the war, with the increasing influence of State Shinto, Inaba’s claim could have undermined Judo’s social credibility. Therefore, the Kodokan and Butokukwai abolished shizen hontai and in its place instituted the posture of attention, the basic Shinto posture, and this was also followed by the military and adopted in middle school games; thus, the current system of courtesy was established during this period. Furthermore, the practice of sitting on tatami mats with the left knee and standing up with the right foot was adopted in 1943 to match the postures stipulated in State Shinto. The etiquette established during the war was modified during the Occupation, when bowing to feudal seniors and the kamidana were abolished. In addition, the choice of bowing posture, whether at attention or a natural posture, was left to the practitioners. In this way, it can be said that Judo etiquette was democratized. However, college students’ conduct during Judo bouts was disturbed after the Tokyo Olympics in 1964. Consequently, wartime etiquette was revived. However, the Kodokan did not disclose that its etiquette was influenced by State Shinto and the military. The official line was that the etiquette was based on principles of Judo such as seiryoku-zenyo (maximum use of energy) and jita kyoei (mutual welfare and benefit).

著者

高橋 幸一

出版者

一般社団法人 日本体育・スポーツ・健康学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.56, no.1, pp.19-30, 2011 (Released:2011-07-08)

参考文献数

40

被引用文献数

1 2

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In recent decades, much evidence for women's sports in the ancient world has been uncovered. In ancient Greece, men concentrated on politics, wars, athletics, and the like, whereas desirable womanly qualities were considered to be beauty, modesty and obedience. Accordingly, no women's events were included in the ancient Olympic Games. It is said that married women were not allowed to be present at Olympia during the games, although unmarried women were permitted to watch the games. Except in militaristic Sparta, athletics were usually for male citizens. However, in the festivals of Hera, only girls could compete in foot-races. Like the boys, Spartan girls paraded naked in the presence of the men and participated in foot-races, wrestling, discus and javelin. Tryphosa, but also her two sisters, competed in and won foot-races in several major athletic festivals, but not at Olympia. Although married women could not compete in the Olympics, they could win Olympic victories in the equestrian events. Thus it is certain that women did participate in athletics. This paper examines the participation of women in sports at the Olympic Games and the festivals of Hera. Except for the priestess of Demeter Chamyne, married women were forbidden to attend the Olympics as spectators. Unmarried women and girls were also excluded from watching the games. In order to prevent bribery, trainers had to present themselves naked and undergo physical examinations. Unmarried women competed every four years in foot-races at the festivals of Hera held at Olympia. Some have suggested that the Heraian games became Panhellenic, but there is no historic evidence for this. The local festivals in which only women and girls were able to participate took place separately from the Olympics. Kyniska of Sparta was the first women's Olympic victor in the four-horse chariot race. Agesilaus persuaded his sister Kyniska to enter a chariot race at Olympia and showed that Olympic chariot victories could be won by wealth and not by manly courage. However, it is certain that Kyniska was exceedingly ambitious to enter the Olympic Games, winning twice in all. However Kyniska's victories did not lead to the spreading of women's sports or to improvement of women's rights.

著者

春日 芳美 友添 秀則

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.57, no.1, pp.177-189, 2012 (Released:2012-06-02)

参考文献数

56

被引用文献数

1 1

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This study was conduct to understand how women's physical education was promoted during the development of Japan, focusing especially on the Taisho era (1912-1926). First, I reviewed critical opinions about physical education for women prevalent during this period, in order to reveal details of difficulties in promoting it. Secondly, through collection of relevant documents, I examined the measures for promotion of women's physical education that had been discussed during this period. Thirdly, I reviewed the criticism of these promotion measures, in order to reveal the tendencies and problems prevalent at the time.   On the basis of these reviews, I consider that the main reasons why the promotion of women's physical education was not successful in the Taisho era were: 1) women's physical education was not consistent with the traditional social norm of the time, 2) theoretical studies of physical education had not yet been developed, and 3) people at that timetended to regard ‘unhealthy-looking’ women as beautiful (for example in the works of Takehisa Yumeji). Since it was difficult to solve these problems, some advocates tried to promote women's physical education by emphasizing the beneficial effects of gymnastics rather than conducting theoretical studies. This was promoted by proactively creating a new concept of women's physical education such as appreciation for ‘health and beauty’. The measures for promotion of physical education for women in the Taisho era placed emphasis on advertising physical education more effectively rather than improving it qualitatively. The promotion of women's physical education in this manner was criticized by other advocates of physical education, and I consider that this was one reason why the quality of women's physical education remained low.

著者

末木 新

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

pp.17029, (Released:2018-07-12)

参考文献数

19

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In high school baseball games, choosing when to bat influences the likelihood of winning, teams batting second having a significantly higher winning percentage. Three hypotheses can be considered for explaining this trend: the weaker school chooses to bat first (Hypothesis 1), an additional strategy change can favor the team that bats second (Hypothesis 2), and a tied score in a later innings favors the team that bats second (Hypothesis 3). However, to our knowledge, no study has directly tested these hypotheses. Therefore, we analyzed data for all 972 games of the Japan national high school baseball championship tournaments between 1996 and 2015, and the following 5 results were obtained. There was a trend in past Koshien tournaments for weaker schools to bat first when playing against stronger schools (52.8 percent, P = 0.091). The winning percentage for the former was 35.5%, which was significantly lower (P <0.001) than the chance level (50%). In addition, the winning percentage for batting first in games between schools with similar levels of past performance was 44.7%, which was significantly lower (P = 0.025) than the chance level (50%). In games between schools with similar levels of past performance, the winning percentage varied for teams batting first when the bottom half of each inning ended in a tie. In games in which teams were tied at the end of the 6th and 7th innings, the winning percentage of the team batting first was significantly lower (36.0%, P = 0.033; 34.0%, P = 0.016). In other words, Hypothesis 3 was supported, Hypothesis 1 was partially supported, but Hypothesis 2 was not supported. These findings indicate that the higher winning percentage for batting second is attributable to the fact that the weaker school regards itself as inferior to its opponent and therefore chooses to bat first (i.e., the weaker school chooses to bat first) and that the psychological pressure faced when batting first versus batting second differs when there is a tie in the later innings (i.e., a tied score in later innings favors the team that bats second).

著者

中嶋 哲也

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

pp.19047, (Released:2020-01-10)

著者

金 湘斌

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.56, no.2, pp.413-422, 2011 (Released:2011-12-28)

参考文献数

38

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The aim of the present study was to explore the correlation between women's physical education in schools and foot binding in Taiwan during the initial stage of Japanese colonization (1895-1906). Based on historical materials such as Taiwan Nichinichi Shinpo (Taiwan Daily Newspaper), Taiwan Kyoikukai Zasshi (Taiwan Education Magazines), and Taiwan Kyoiku Enkakushi (Taiwan Education Development Magazines), we tried to clarify how Japanese colonists carried out physical education in the period before 1906 when female students still had bound feet. The proportion of women with bound feet was as high as 60%, and this led to practical difficulties with physical education. Because of these difficulties, physical education was replaced by suitable games (including a form of dancing activity; for example, marching play (Kōshin-yūgi) and facial expression play (Hyōjō-yūgi) between 1895 and 1906. The practice of games in physical education was thus firmly established during this period. The second affiliated Kokugo school (Japanese school), as a role-model school in Taiwan, always practiced games and general gymnastics in consideration of foot-binding. Thus, the teaching experience during this time can be viewed as an embryonic period for the general gymnastics that emerged later.

著者

内山 治樹

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.58, no.2, pp.677-697, 2013 (Released:2013-12-07)

参考文献数

70

被引用文献数

7 3

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The present study was conducted to clarify the roles of coaches in sports instruction and the essentials of these roles. Up to now, there has been no unified definition of coaching, and the conditions and grounds for selecting coaches and analyzing them collectively have remained unclear. In addition, logically, “induction” rather should be “extracted,” and the existing intelligence of the contents (intension) of the concept can be logically assumed. Accordingly, this approach seems inappropriate for revealing the essence of coaching. In order to overcome this problem, this research classifies into occasions of entities and consistence of existence. Under the subject of existence, entities theoretically transcend this through individualization, and this method is used to reach the existence of entities. As a result of this consideration, coaches first “tame” athletes to a system of physical techniques in order to address specific items, and then they endeavor to maintain the same level of play. It was clarified that coaches are specialists who are able to help athletes “transcend” from their current conditions. Moreover, coaches can using external force to compel a “physical change” in athletes, as leaders who can control athletes intelligently and actively, using a process that consists of and production based on theoretical knowledge. Thus, coaching involves the use of “compelling power” to rise from restrictions under specific conditions, and to encourage constant excellence.

著者

有山 篤利 中西 純司 島本 好平 金野 潤

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

pp.18048, (Released:2019-02-28)

参考文献数

26

被引用文献数

1

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Focusing on the theory of the “principle of ju” that generates movements and techniques reflecting the proverb “softness overcomes hardness: ju yoku go wo seisu”, we discuss the relationship between the movement of modern judo practitioners and its sportization, in order to grasp the current situation of judo in Japan. It was found that there are 3 levels among contemporary Japanese judo practitioners: (1) those who practice judo in the context of a competitive sport while being aware of the tradition, (2) those who practice judo purely as a competitive sport, and (3) those who practice the traditional skills of a martial art. It is widely recognized that those at level (1) tend to neglect, whereas those at level (3) tend to emphasize the arts of judo. Also, older judo practitioners tend to emphasize the proverb “softness overcomes hardness”, but this is unrelated to the length of time spent training and the dan level of the practitioner. Many present day judo practitioners regard judo as a competitive sport, suggesting that – in terms of movement – Japan’s judo tradition being lost. On the other hand, however, it has also become clear that those who love judo and practice it with an attitude not obsessed with victory or defeat or of improving their skills, attach great importance to “softness overcomes hardness”. In order for judo to continue to remain a “physical exercise culture proclaiming the place of traditional Japan in a global world”, it can be suggested that the challenge lies in the rebuilding of the interaction with judo as a martial art that aims for “development of skills” with a loving attitude that differs from competition, while ensuring that some aspects remain competitive.

著者

志村 芽衣 宮澤 隆 矢内 利政

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

pp.17049, (Released:2017-12-20)

参考文献数

9

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The purpose of this study was to determine the impact conditions that enable a batter to hit a pitched ball toward the opposite field. Three-dimensional finite element analysis was used to construct a model for the impact between a baseball and a wooden baseball bat, and a series of simulations were conducted with various bat angles and under-cut distances. The bat angle at ball impact was set in a horizontal range from -31 to 20° and a vertical range from 0 to 51° with a 3° interval. The under-cut distance was altered by changing the vertical angle of the line of impact in a range from 0 to 30° with a 5° interval. The velocity and angle of projection of the batted ball were determined for each simulated condition. The simulation model was validated by comparing the simulation outcome with the corresponding experimental data obtained from opposite-field hitting practice performed by collegiate baseball players. The results showed that when a batter intends to hit a ball toward a given horizontal angle in the opposite field with the highest speed, the batter should impact the ball with the bat facing about 60% of the horizontal angle toward which to launch the ball and with the line of impact angled upward at 5~10° from the horizontal plane. In addition, the horizontal angle of the batted ball and the velocity of the batted ball were found to change systematically when the vertical angle of the line of impact and the vertical bat angle were altered: For a given horizontal angle toward which to launch the batted ball, there was a trade-off relationship between the vertical angle of the line of impact and the vertical bat angle.

著者

森下 はるみ

出版者

一般社団法人 日本体育学会

雑誌

体育学研究

巻号頁・発行日

vol.7, no.1, 1963

著者

李 燦雨

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.57, no.2, pp.501-513, 2012 (Released:2012-12-05)

参考文献数

42

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This study investigated Korean traditional archery in the 18th century by reference to the Eosagopungcheop (records of the old custom of King's archery) of King Jeongjo, who was known for both literary and military accomplishments in the Joseon era. Through these records, we were able to obtain information on the types of archery, the variety of targets and arrows, the methods of scoring and recording, and the features of traditional archery. The findings were as follows: 1.  The arrows employed were Yuyeopjeon (willow-leaf arrow), Soso (small arrow), and Cheoljeon (iron arrow). All of them featured in examinations for military officers. 2.  In terms of quantity and frequency, the willow-leaf arrow was used most commonly. 3.  The small arrow was considered the piece arrow, which was a weapon unique to Korea. 4.  It became clear that the iron arrow, which was very heavy and thick, was used to break shields. It seems that this type of arrow was considered the most important for military officer examinations, because it played an important role in breaking down the enemy's defense in Korea, depending on the archery tactics. 5.  The targets employed included cloth targets, leather targets and a variety of other types. 6.  It was clarified that in terms of accuracy, targets were ranked in order of size. On the pierce leather target standard, the other targets appeared to be named ‘Fragment’, ‘Small’, ‘Palm’ in descending order of size. 7.  Each type of arrow was paired with a specific target. The willow-leaf arrow was paired mainly with leather targets. The small arrow was paired with both leather and cloth targets, and the iron arrow was paired with shield or club targets. 8.  According to the records, a practice session comprised basically 10 sequences, each involving the shooting of 5 arrows. 9.  The scoring system differed depending on the type of target. For leather targets, the score was separated into two hit zones: the center and the surrounding area. However, the score was not separated in this way for cloth targets. 10.  The willow-leaf arrow used on leather or club (cudgel) targets was the item to compete in accuracy. The small arrow, used mainly on cloth targets, was used in contests held on shooting ranges. The iron arrow, used mainly on shields or clubs as targets, was used for determining destructive power and accuracy. 11.  The inscriptions in the records are divided as to whether the shooting sequence was single or multiple. 12.  The records reveal that Korean traditional archery was still widely practiced at the end of the 18th century, when firearms had become common in all parts of the world.

著者

内山 治樹

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

pp.14038, (Released:2014-09-09)

参考文献数

50

被引用文献数

1

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The purpose of this study was to investigate the norm for supporting play by athletes in team sports, which has so far lacked implicitness, having been regarded spontaneity. The investigation involved analysis of the “authority” of Michael Jordan (hereinafter shortened to “MJ”), who has had a reputation as being one of the best athletes in history. Initially we tried to extract a sense of values from MJ himself and references to his reputation. From this, we clarified a standard of value judgments, and then finally produced a suitable universal normative principle common to all athletes. Although there were insufficient data to draw firm conclusions, the sense of values derived by an athlete appeared to be derived from evaluation of “whether one can utilize one's own talents.” It became clear that while this leads to “correct” play, this evaluation standard contributes to the formation of an “independent strong self” that can “exert positive freedom.” On the other hand, it was also concluded that not only did this “positive freedom” control the evaluation standards of athletes, but also functions as the “normative principle” that one should acquire by forming one's own creativity and identity. At the same time, it was suggested that “positive freedom” is the driving force that allows athletes to become “ignorant” through independent and strong self-belief, The present findings indicate that disregarding any mystique or secrecy about the underlying ability in athletes, and transcending the rule of thumb can contribute to execution of play by athletes in team sports, acting as a signpost when confronting any problem that is complicated, erratic or filled with uncertainty.

著者

黒木 俊弘

出版者

一般社団法人 日本体育学会

雑誌

体育学研究

巻号頁・発行日

vol.8, no.1, 1963

著者

松倉 啓太 浅井 武

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.54, no.2, pp.317-326, 2009-12-10 (Released:2010-02-13)

参考文献数

14

被引用文献数

2

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The present study investigated the area covered by soccer goalkeepers during diving motions (reaching area). Goalkeepers were asked to dive towards the ball in accordance with a directional indicator that presented random electronic displays. To examine the characteristics of goalkeepers' diving motion toward each position of the ball, the time needed to reach the ball (reaching time) was measured, as well as the velocity and trajectory of the diving motion. Comparison of the reaching time for each ball height (upper, medium, and low) when each goalkeeper dived for only a short distance revealed statistically significant differences in attempts to stop the ball, the times increasing in the order medium, upper, low height. When a goalkeeper dived longer distances, there was a significant difference in the reaching time, which increased in the order medium, low, and upper height. No significant differences in reaching time were observed between the left and right sides for the same distances and heights. These results suggest that for short distances, more time is needed for relatively lower heights, whereas for longer distances, more time is needed to reach balls at relatively high levels. In terms of the velocity of the diving motion, when the center point between the shoulders was measured with the ball at longer distances, there was a trend for an acceleration phase to start 0.3 s after the directional indicator had been shown. It slowed temporarily at 0.5 s and then resumed. Meanwhile, when attempting to stop the ball at shorter distances, there was a trend for only one phase of acceleration without any stepping action (i.e., taking a running start). Moreover, temporal changes in the center position of the hand (the third metacarpophalangeal joint) that touched the ball were used to create a diagram depicting the estimated range of time needed to reach the ball. This diagram was able to clarify differences in reaching area with respect to ball height and distance.

著者

村越 真 中村 美智太郎 河合 美保

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

pp.14029, (Released:2014-10-27)

参考文献数

45

被引用文献数

1

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Perception and management of risk by high altitude mountain climbers were investigated by qualitative analysis. Reports of high altitude mountain climbing collected from three books and 15 articles from mountaineering magazines were analyzed by the KJ method (Kawakita, 1967) and transcripts derived from semi-structured interview of six distinguished Japanese expert mountain climbers were analyzed by M-GTA (Kinoshita, 2003, 2007). The results indicated the following trends: 1) The desire for more fascinating high altitude mountain climbing routes inevitably leads climbers to face difficult and uncertain situations. 2) Such climbers are highly aware of the uncertainty derived from the high altitude environment and the exertion of climbing. 3) Because they are aware of this uncertainty, their decisions always waver between challenge and safety, and they always attempt to reduce the degree of risk. 4) Such efforts consist of two phases: risk reduction prior to the climb, and on-site avoidance of risk, each being characterized by mental simulation, avoidance of uncontrollable situations, and endeavours to salvage a positive result. 5) After the climb, ambivalent cognition between reflection on their optimism and achievement also emerges. Among all, mental simulation primed by on-site signs of risk, and risk evaluation from the viewpoint of controllability were regarded as keys to staying alive in high risk situations during high altitude mountaineering. Through this risk perception and management process, high altitude climbers possess a contradictory sense of “controllable risk” that enables them to engage in high risk activity. Overall, the characteristics of risk perception and management were similar among the materials obtained from books/magazine articles and interview transcripts. The characteristics of climbers' perception and risk management were rationalized by the characteristics of the natural environment in which they were climbing, and also from the viewpoint of the situated action (Suchman, 1987). The possible application of these findings to risk management in outdoor sports was also discussed.

著者

中澤 篤史

出版者

一般社団法人 日本体育・スポーツ・健康学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.66, pp.497-514, 2021 (Released:2021-08-11)

参考文献数

49

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The aim of this study is to describe the history of the Junior High School Physical Culture Association (JHSPCA) based on reexamination of the relationship between education and competition in school sports. Previous studies have maintained that there was a conflict between education and competition in school sports, and that the potential educational effects of sports were impeded by its competitive focus. However, it is assumed that the JHSPCA held competitive championships under the guise of educational activity. To fully understand the historical development of school sports we should instead reexamine whether the educational aspect of school sports is actually combined with its competitive one. This reorientation of perspective would then allow for new research questions, such as how the JHSPCA was formed and developed, and how and why it combined education and competition in school sports. The present study attempts to answer these questions, which previous studies have not, by analyzing documents gathered from official annual reports of the JHSPCA. The study produced a number of findings. Beginning in 1947 with the establishment of the postwar junior high school system, the JHSPCA first developed at the prefectural level. Initially the association was formed by PE teachers under the influence of the Ministry of Education, while also accepting the assistance of the Association of Junior High School Principals, local boards of education, and select sports federations. In 1955, the national level of the JHSPCA was initially formed in order to control the games and matches of junior high school athletes and as a counter organization to sports federations. Crucially, the JHSPCA differed from sports federations in that it was specifically driven by educational ideals. Yet, even with such an organization principle, it encouraged games and even matches under the name of educational activities. At that time, some prefectures did not have local JHSPCA branches; however, by 1967 all prefectures had designated branches and the association finally became a national organization. In conclusion, this study has clarified that the JHSPCA had to compete against sports federations and thus included a system of competitive championships within the ethos of school sports. By continuing to combine education and competition in school sports, it was possible to utilize competitive championships for the realization educational ideals. The present findings suggest that there is the possibility of modifying the prior consensus that education is opposite to competition in school sports in Japan.

著者

中垣 浩平 尾野藤 直樹

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

pp.13034, (Released:2014-01-23)

参考文献数

16

被引用文献数

1

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The purpose of this study was to evaluate the utility of simplified quantification of training in for a Japanese national canoe sprint team using the modified session rating of perceived exertion method. We recorded the team's training using a method that integrates the original weighting factor (WF) and the duration (time) of the training session. Training load was quantified as the product of WF and time. Training monotony was calculated by as the mean daily load divided to the standard deviation of load. Training strain was calculated by multiplying the weekly training load by training monotony. A fitness-fatigue model was applied to the relationships between training load and performance. The model-predicted performance using the training load was significantly correlated with actual paddling performance. The training load and strain were significantly correlated with resting heart rate in the early morning. These results suggest that simplified quantification of training can be used to prescribe training for the improvement of performance and the prevention of overtraining syndrome.

著者

末木 新

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

pp.16083, (Released:2017-03-06)

参考文献数

17

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Baseball is a thriving sport in Japanese high schools. However, there have been demands to shorten the instructional time for school extracurricular activities, resulting in a need to increase the effectiveness of such instruction. The present study was designed to examine the effects of three elements of team strength in high school baseball—pitching strength, batting strength, and defensive strength—on the outcome of a game. The materials used for analysis were the records of all of the 390 games and 780 teams involved in the National High School Baseball Championship from 2008 to 2015. Pitching strength, batting strength, and defensive strength were calculated using Fielding Independent Pitching (FIP), On-base Plus Slugging (OPS), and Defensive Efficiency Rating (DER), respectively. Logistic regression analysis (forced entry method) was conducted on the game outcome as the dependent variable and team FIP, team OPS, and DER as the independent variables. This analysis showed that the team FIP (odds ratio 0.80, 95% confidence interval 0.74—0.86), team OPS (odds ratio 8145, 95% confidence interval 1957—33898), and DER (odds ratio 5699019, 95% confidence interval 341274—95169408) were significantly associated with the outcome of the game. An assessment of the Wald statistic, which indicates the contribution rate of the dependent variables, showed that batting strength had the strongest effect on game outcome, followed by defensive strength. Compared to batting and defensive strength, pitching strength appeared to have only a small influence on game outcome. Therefore, for efficient improvement of team strength, it is considered that resources should be directed towards improving batting and defensive strength over pitching strength.

著者

川村 卓 小池 関也 阿江 数通

出版者

一般社団法人 日本体育・スポーツ・健康学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.64, no.1, pp.37-48, 2019-06-17 (Released:2019-06-25)

参考文献数

22

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This study examined the flow of energy in the right and left upper limbs of skilled baseball batters during the forward swing motion at different bat head speeds to obtain basic insights that would be useful for batting coaching. The subjects were 23 college baseball outfielders in university teams. The subjects were instructed to hit a ball toward the pitcher from a tee set at a mid-height position. Measurements were taken using 47 points on each subject’s body and 6 points on the bat for a total of 53 points, onto which reflective markers were attached. The 3D coordinates of each marker were measured using a 3D optical motion capture device (Vicon Motion Systems’ VICONMX, 12 cameras, 250 Hz). The variables in the kinetics of each hand were measured using a force detection sensor bat (1000 Hz). The subjects were separated into a faster group of 36.8±0.8 m/s and a slower group of 34.7±1.1 m/s for analysis. In terms of energy transmission, the data revealed that the faster group, in addition to showing additional torque on the knob side shoulder joints, were able to transmit more mechanical energy from the knob side shoulder joints to the end of the upper limbs than the slower group, and that this might be related to an efficient bat head speed. In addition, the faster group showed an increased positive torque power, and transmitted greater mechanical energy to the bat from the hand region. In other words, to prevent mechanical energy from being absorbed while adjusting the bat trajectory near the time of impact, skilled bat control involving movement of the hand joints appeared to determine the bat head speed.