著者

城所 収二 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

vol.62, no.2, pp.475-490, 2017 (Released:2017-12-19)

参考文献数

16

被引用文献数

1

---

The horizontal direction in which a batted ball travels is determined primarily by 2 factors: the horizontal angle of the bat at ball impact (first mechanism) and the interaction between the vertical inclination angle of the bat and the position of the ball impact along the short axis of the bat (second mechanism). As the bat is generally inclined vertically at the moment of ball impact (the head is positioned lower than the grip end), the second mechanism must cause an opposite influence on the horizontal trajectory of the batted ball when a grounder and a fly-ball are compared. The purposes of this study were two-fold: (a) to compare the contributions of the 2 mechanisms to the horizontal direction of batted balls between grounders and fly-balls and (b) to determine the relationship between the contribution of each mechanism and the speed of the batted ball. Sixteen collegiate baseball players were asked to hit balls delivered by a pitching machine aiming towards the same field and the opposite field for 4 trials each. The motions of the ball and the bat around the moment of ball impact were recorded using 2 high-speed cameras (1000 fps). The contributions of the 2 mechanisms to the horizontal directions of the batted balls were calculated from the following variables: the trajectory of the pitched and batted ball, projection angles of the bat in the horizontal plane (horizontal bat angle) and the vertical plane (vertical bat angle), and the angle of the line of impact from the horizontal at ball impact (line of impact angle). The first mechanism contributed 40% or more on average to both the same- and opposite-field hitting of grounders and fly-balls projected towards the fair territory. For fly-balls to the same field and grounders to the opposite field, the contribution of the first mechanism was particularly high (same/fly ball: 118.6±35.2%, opposite/grounder: 109.5±17.8%), and the impact surface of the bat faced toward the batted ball direction. The contribution of the second mechanism was greater for grounders to the same field and fly-balls to the opposite field than the others (same/grounder: 46.7±23.3%, opposite/fly ball: 50.6±49.2%). The speed of the batted ball was negatively correlated with the contribution of the second mechanism (r=−0.73, p<0.01). Therefore, in order to hit a ball with higher speed, a batter should adjust the timing of impact to use the first mechanism, and should strike near the center of the ball.

著者

藤井 勝紀

出版者

社団法人日本体育学会

雑誌

体育學研究 (ISSN:04846710)

巻号頁・発行日

vol.48, no.5, pp.523-539, 2003-09-10

被引用文献数

3

---

The hypothesis that menarche is delayed in female athletes has not been verified, despite many studies widely eported in the US and a few investigations conducted in Japan. The purpose of the present study was to examine statistically whether regular sports training for female athletes in childhood delays the age at menarche. Health examination records and history of exercise were investigated for 144 female high school senior athletes in the Tokai area, who had participated in competitions at the national level. The investigations covered the period from the first grade of elementary school until the final year of high school (from 1985-1987 to 1996-1998). The sports played by the subjects included track and field (n=21), basketball (n=15), volleyball (n=21), softball (n=7), tennis (n=16), soft tennis (n=25), hockey (n=8), judo (n=19), table tennis (n=6), handball (n=3) and swimming (n=3). Longitudinal data for height and weight were obtained from health examination records. Age at menarche was obtained by questionnaire (from recollection). The control group comprised 78 female non-athletes investigated in a similar manner to the athlete group. Delay in menarche was judged from the interval between menarche and physical maturation level. Ages at maximum peak velocity (MPV) of height in the athletes and control groups were derived using the wavelet interpolation method (WIM) as the criterion for maturation level. The interval between age at menarche and age at MPV of height was then derived for each group. The difference in the derived age interval between the two groups was tested for significance (t test) to compare the athletes and the controls. In addition, age at menarche and age at MPV of height were compared between the groups. The results were then used to determine whether menarche in female athletes was delayed. It was found that the age at menarche was significantly later in athletes (12.82 ± 1.15 years) than in the control group (12.11 ± 0.90 years), with the exception of table tennis players (P<0.01). However, age at MPV of height did not differ significantly between the groups, except for tennis players. A significant difference in the age interval between MPV of height and menarche was observed between the control group (1.08 ± 0.74 years) and the athlete groups (1.75 ± 1.23 years), with the exception of tennis and table tennis players (P<0.01). It may be concluded from these results that regular sports training for female athletes in childhood delays the age at menarche.

著者

村井 友樹 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

pp.15036, (Released:2015-08-26)

参考文献数

63

---

The aim of this study was to clarify the background and features of implementation of the Nationwide Swimming Training for Conscription Candidates (NSTCC). The tasks of the study were to elucidate the 1) background, 2) preparation, 3) contents, and 4) results of NSTCC implementation.  The results of this study were as follows:  1) After the outbreak of the Sino-Japanese war, the problem of a lack of swimming ability was observed among soldiers, so municipal governments and the Ministry of Health and Welfare turned to the STCC as the solution.  2) As the Sino-Japanese war was prolonged, the Ministry of Health and Welfare integrated the STCC, which had previously been conducted as a separate program, into one implementation throughout the whole country.  3) After the outbreak of the Pacific War, the situation was worsening, and the lack of swimming ability in ground forces became obvious. To resolve this problem, the Ministry of Health and Welfare decided on a comprehensive implementation program, which was planned at the beginning of 1943, through the NSTCC.  4) The NSTCC was supported by the Imperial Rule Assistance Association and its neighborhood associations. Since swimming training on a nationwide scale was not compulsory for all conscription candidates, the Imperial Rule Assistance Association mobilized conscription candidates to participate in training through different propagandas.  5) The National Physical Training Association trained coaches for each prefecture and each implementation district. Most coaches in each implemental district were school teachers.  6) In was recommended that the NSTCC be conducted using swimming pools, but a number of implementation districts did so in seas, rivers, or lakes.  7) The first half of the NSTCC was intended to cultivate the ability to float, on the assumption that this ability was basic training in order for beginners to master swimming.  8) During the second half of the NSTCC, attaining the technique of sidestroke or breaststroke was preferred. Each implementation district was able to choose a stroke (sidestroke or breaststroke).  9) Disciplinary training was highly regarded in the NSTCC.  10) As 95% of all participants were able to swim for more than 10 meters upon completing training, the NSTCC was judged to have been effective in eliminating a lack of swimming ability.

著者

大山 惣寿郎 佐藤 豊 平間 光雄 塔尾 武夫

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.12, no.5, pp.280, 1968-07-05 (Released:2016-12-31)

著者

田中 美吏

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.59, no.1, pp.1-15, 2014 (Released:2014-06-13)

参考文献数

71

被引用文献数

1

---

It is known that many athletes competing in various sports are likely to experience impaired motor performance under psychological pressure. Numerous studies have been conducted to clarify and overcome this problem, which impacts on various motor skills, and a variety of results have been reported. In this review, in order to exclude the influence of task-specific differences on interpretation of the results, experimental studies of the golf-putting task, which has been most widely used in previous studies of motor behavior under pressure, published between 1992 and 2013 were systematically reviewed by categorizing them into the following research paradigms: (1) Explanations of reduced performance under pressure in terms of attentional foci and attentional capacity, including the conscious processing hypothesis and distraction hypothesis. (2) Studies of psychological, physiological, and behavioral symptoms manifested under pressure, especially studies of cognitive and emotional processes in the psychological domain, arousal in the physiological domain, and performance outcome, kinematics, force control, and eye movement in the behavioral domain. (3) Studies investigating methods for preventing pressure-related performance loss, such as those involving quiet eye training for optimal eye movement, and manipulation of attentional focusing to prevent an increased internal focus of attention under pressure. It is suggested that the theoretical background developed in this review would be useful for gaining scientific knowledge about sports performance under psychological pressure from a wide range of perspectives on motor behavior.

著者

田端 真弓 山田 理恵

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.143-155, 2011 (Released:2011-07-08)

参考文献数

45

---

The purpose of this study is to clarify the transformation that occurred in a school (ryuha) of swordsmanship in the domain of Ohmura, Nagasaki, at the end of the Tokugawa period in Japan, focusing particularly on the invitation extended to Saito Kannosuke, one of the leading instructors in the Shinto Munen-ryu (school of swordsmanship), in 1854. This paper was based on two historical materials: Shugyo-chu Shohan Houmei-roku (1849) and Kuyo Jitsuroku (1849-1855). Ohmura Sumihiro, the 12th domanial lord, and Egashira Kandayu, his chief retainer, were tacitly interested in the utility of swordsmanship in Ohmura, and actively proposed the transformation of a school of swordsmanship. In 1854, they invited Kannosuke to act as the swordsmanship instructor. Kannosuke was the third son of Saito Yakuro, a famous instructor of the Shinto Munen-ryu, who had established and managed the Rempeikan, a swordsmanship school (dojo) in Edo. Saito Yakuro's eldest son, Shintaro, had embarked on a journey throughout the domains of Japan in order to train and practice against other warriors there. These training and practice were known as kaikoku-shugyo. Shugyo-chu Shohan Houmei-roku indicates that Shintaro visited many feudal domains, including Ohmura. Ohmura Sumihiro and Egashira Kandayu then became interested in the technique of the Shinto Munen-ryu, which was taught at the Rempeikan, because they considered it to be useful for actual fighting. Afterwards, they succeeded in inviting Kannosuke in 1854, and he became the instructor employed by the domain of Ohmura. His duty was to promote the training of the Shinto Munen-ryu with warriors in Ohmura. In 1855, the Itto-ryu and Shinkage-ryu instructors of swordsmanship were dismissed and forced to stop their teaching. According to Kuyo Jitsuroku, this transformation from the Itto-ryu and the Shinkage-ryu to the Shinto Munen-ryu occurred over a period of six years (from 1849 to 1855). It was brought about to achieve the political ambitions of Ohmura Sumihiro and Egashira Kandayu.

著者

矢野 康介 木村 駿介 大石 和男

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.587-598, 2017 (Released:2017-12-19)

参考文献数

37

被引用文献数

1 2

---

Previous studies have shown that a high level of sensory-processing sensitivity (SPS) could be a risk factor for mental health. Many studies have reported that daily exercise helps to retain and/or improve mental health. This study examined the relationship between the level of daily exercise and SPS among university students. The participants were 292 university students (143 males and 149 females) ranging in age from 18 to 23 years (19.4±1.1 years). They were asked to complete a questionnaire that included the following items: 1) the frequency of exercise (days per week), 2) the number of years of successive daily exercise, 3) the sporting events in which they currently participate, and 4) the Japanese version of the 19-item Highly Sensitive Person Scale (HSPS-J19) including 3 sub-scales, i.e., low sensory threshold (LST), ease of excitation (EOE), and aesthetic sensitivity (AES). The participants were categorized into a) high, b) medium, and c) low frequency groups, or a) short, b) middle, and c) long term groups individually, based on their levels of participation. Additionally, they were categorized into a) individual, b) team and high-frequency physical contact (HC), and c) team and low-frequency physical contact (LC) exercise groups based on their exercise habits. The high frequency and long-term groups showed lower scores of the HSPS-J19 and its sub-scales of LST, EOE, and AES than the other groups. No significant differences were found among the groups with regard to sports currently played in the scores of the HSPS-J19 and its sub-scales, i.e., LST and EOE. Only AES scores in the LC groups were higher than those in the HC groups. These results suggest that the appearance of SPS was moderated as a result of high-frequency and/or the long-term daily exercise due to habituation to strong stimuli.

著者

船木 浩斗 會田 宏

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.59, no.1, pp.329-343, 2014 (Released:2014-06-13)

参考文献数

36

---

The purpose of this study was to examine the effectiveness of one-on-one play during set-defense in handball, and to gain practical data for development of effective training methods. A total of 447 one-on-one plays were compared with regard to success or failure in blocking the breakthrough at three levels: world class, Japanese elite, and Japanese college level. The one-on-one play was divided in three phases: the first was that when the passer possessed the ball, the second was that when the ball was in the air, and the third was that when the player marked by a defense player possessed the ball. The interactions between plays in each phase and success or failure in blocking the breakthrough were analyzed at each level.   The main results were as follows. 1)  Effective one-on-one play was when the defense player aggressively blocked the player with the ball and moved forward with physical contact. 2)  At the Japanese level it was important to define the guidelines for one-on-one play while the player had the ball, in order to increase the success rate of blocking the breakthrough during one-on-one play. 3)  At Japanese elite level, effective one-on-one play could not be established while the player marked by a defense player did not possess the ball. 4)  At Japanese college level, defenders selected one-on-one play around the ball while the player marked by the defense player did not possess the ball, and one-on-one defence failed.   For consistent coaching in Japan, it was important to adopt one-on-one play around the marking player while the player marked by a defense player did not possess the ball, in order to increase the success rate of blocking the breakthrough during one-on-one play.

著者

出村 慎一 佐藤 進

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.51, no.2, pp.103-115, 2006 (Released:2008-01-25)

参考文献数

58

被引用文献数

18 12

---

The aims of this review are to (1) outline the course of quality of life (QOL) studies in Japan, (2) clarify the concept and scale of health-related QOL and subjective QOL, (3) clarify the problems in the Japanese version of subjective QOL scales and the characteristics of subjective QOL in Japanese elderly, and (4) propose a direction of QOL assessment for the aging society in Japan. Since the 1970s in Japan, QOL has been studied in several fields, such as medical science, social psychology and gerontology, but a unified concept or definition of QOL has not been established. Health-related QOL, developed in the field of medical science, evaluates the individual condition from multiple dimensions including physical, psychological, social, functional and spiritual aspects. Since the aging society in Japan is largely composed of healthy elderly, comprehensive health-related QOL scales, which can provide continuous assessment from the disabled to healthy elderly, have a high degree of availability. Subjective QOL scales measure individual subjective evaluations of all aspects of daily life. Subjective QOL has mainly been assessed from the viewpoint of life satisfaction or morale. However, it has been reported that the existing scales have certain problems, and that subjective QOL is influenced by culture and individual values. In the aging society of Japan, it will be important to evaluate QOL in the elderly from the aspects of both health-related and subjective QOL to clarify the criteria for “successful aging”. In addition, ikigai (“something to live for”), which is unique to Japan, will be an effective measure for evaluation of QOL.

著者

脇田 裕久 水谷 四郎 矢部 京之助

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.32, no.1, pp.49-56, 1987-06-01 (Released:2017-09-27)

---

It has been observed that the premotion silent period appears just before a rapid voluntary movement. This phenomenon is believed to be caused by one of the inhibitory discharge from the central nervous system. On the other hand, the silent period is also observed when muscles are relaxed by counter movement. The present study was designed to compare some physical performances of both silent periods. Twenty healthy males aged 18-24 years were subjected to a series of experiment. They were asked to maintain the posture of standing with flexed knee joint at about 50 degrees on the force plate. In the first condition, they were requested to extend their knee joint responding to a flashing lamp as quickly as possible (Non-counter movement). In the second condition, they were asked to extend knee joint as quickly as possible with counter movement to a flashing lamp. The EMG activities of M. rectus femoris, M. vastus lateralis, M. vastus medialis and M. biceps femoris were recorded using bipolar surface electrodes. Force curve from a force plate and electrogoniogram were recorded simultaneously. The following results were obtained from this experiment. 1) The rate of appearance in complete silent period was higher on the counter movement (M. rectus femoris: 37.8%, M. vastus lateralis: 81.6%, M. vastus medialis: 59.7%) than on the non-counter movement (28.2%, 57.6%,46.5%, respectively). 2) The latency of silent period was significantly later on the counter movement (M. vastus lateralis:132.8 msec, M. vastus medialis: 135.5 msec) than on the non-counter movement (119.4 msec, 116.4 msec,respectively). 3) The duration of silent period was significantly longer on the counter movement (M. vastus lateralis: 100.0 msec, M. vastus medialis: 96.6 msec) than on the non-counter movement (40.9 msec, 41.9 msec, respectively). 4) No significant difference in the rate of tension rise was found between the counter movement (3.7kg/msec) and the non-counter movement (2.7 kg/msec). 5) The peak value of the force curve was significantly greater on the counter movement (173.0 kg)than on the non-counter movement (141.2 kg). It is suggested from these results that the silent period of the counter movement delayed the reaction time (latency and duration) and increased the muscular strength in comparison with the premotion silent period.

著者

下門 洋文 中田 由夫 富川 理充 高木 英樹 征矢 英昭

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.58, no.1, pp.181-194, 2013 (Released:2013-06-08)

参考文献数

34

被引用文献数

4 3

---

The purpose of this study was to examine trends in the body mass index (BMI) and physical fitness of Japanese university students over a period of 26 years and the association between these parameters. We retrospectively collected data on 17,514 students aged 18-19 years attending a university in the years 1984, 1986, 1990, 1991, 1996, 1997, and 2004-2010. The subjects were classified into three body types on the basis of calculated BMI: underweight (BMI<18.5), normal (18.5≤BMI<25), and overweight (BMI≥25). We also calculated the physical fitness score on the basis of 4 fitness-test results (hand-grip power, handball throwing distance, 50-m running time, and 20-m shuttle run count). The time of assessment was categorized into three periods: 1980s (1984 and 1986), 1990s (1990, 1991, 1996, and 1997), and 2000s (2004-2010). The association of physical fitness with body type and period was analyzed using 2-factorial analysis of variance. Descriptive statistics showed that over the 26-year period, moderately increases in the prevalence of underweight and overweight individuals were observed, and the fitness score decreased for both sexes and all body types. A significant interaction between body type and period on physical fitness was observed in boys (P<0.05); underweight and overweight boys showed a greater decrease in physical fitness than normal-weight boys from the 1990s to the 2000s. These long-term data suggest that over 26 years, an increase in the prevalence of underweight and overweight individuals among university students resulted in a decrease in fitness levels to a greater extent in boys.

著者

高松 祥平 青山 将己 久保 雄一郎 伹尾 哲哉

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.2, pp.825-839, 2019-12-16 (Released:2019-12-20)

参考文献数

46

---

We examined the process of development of the first professional female volleyball club in Japan, Victorina Himeji, in relation to its stakeholders. For the purposes of this study, a professional sports club was defined as an organization composed of professional athletes who receive compensations through engagement in sports. We collected qualitative data from websites, papers, books, and archive material. In addition, we conducted a semi-structured interview with Mr. Akira Hashimoto, chief executive of Himeji Victorina. This revealed the involvement of 13 primary stakeholders and 11 secondary stakeholders in Victorina Himeji’s development from its conceptual stage up to the present. Analysis of Victorina Himeji’s organizational development over time revealed 3 phases. Phase 1 was the period from the launch of the club-founding preparatory committee until the establishment of the joint-stock company: Himeji Victorina. During this period, Mr. Masayoshi Manabe, who has been the head Japan women’s volleyball coach until 2016, and interested locals joined together with the idea of creating a professional volleyball team in Himeji city, a period during which Mr. Hashimoto later joined and strengthened the management. Phase 2 was the period following the establishment of Himeji Victorina until its official admission to the V. League. This was the period during which the organization conducted tryouts, scouted and collected players with prospects of strengthening the team, and strengthened the main office staff at the club’s headquarters. In addition, Phase 2 saw the beginning of sponsor recruitment, in addition to strengthening of the top team, along with activities to popularize volleyball and train players through the establishment of the general incorporated association: Victorina Elite Academy. Finally, Phase 3 was the period following the official admission to the V. League until the present. Overall, this study clarified the relationships with stakeholders and engagements as a club, which were both crucial elements in the process of founding this professional sports club and ensuring its growth as an organization.

著者

和田 正信 坂本 誠 杉山 美奈子 松永 智

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.51, no.4, pp.399-408, 2006 (Released:2008-01-25)

参考文献数

51

被引用文献数

6 4

---

Skeletal muscles induced to contract repeatedly respond with a progressive loss in their ability to generate a target force or power. This decline in function, referred to as muscle fatigue, has a complex etiology that can involve various metabolic and ionic factors. Of these, intracellular acidosis due to lactic acid accumulation has been regarded as one of the important causes of muscle fatigue that occurs with intense exercise. Recent surveys, however, have demonstrated little direct effect of acidosis on muscle function at physiological temperatures, and in fact several putative mechanisms by which intracellular changes can attenuate contractile function have been proposed. The most likely mechanisms to explain muscle fatigue include elevated inorganic phosphate concentrations that result from phosphocreatine breakdown, compartmentalized depletion of endogenous muscle glycogen and/or modification by reactive oxygen species that are produced extensively in contracting muscle fibers. This brief review seeks to examine how these three alterations contribute to muscular fatigue processes.

著者

図子 浩二 高松 薫 古藤 高良

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.38, no.4, pp.265-278, 1993-11-01 (Released:2017-09-27)

被引用文献数

9 17

---

This study clarified the specificity of leg strength and power in several sport athletes. To accomplish this purpose, a new physical fitness test was developed to evaluate the capacity for the ballistic and stretch-shortening cycle (SSC) movements. 1. The drop jump (DJ), a typical SSC movement was used in this test. A few experiments were performed to determine the best dropping height and jumping technique of DJ in 10 college male athletes. These results showed the best method of DJ was rebound DJ with small angular displacement of the knee from 0.3 m beause of appearing the shortest contact time and the longest air time, and being ballistic and safe movement. 2. Average force[F_&ltindex&gt ={(t_a)/2 + (2・h_d/g)^&lt1/2&gt}/(t_c + 1)], average Power[P_&ltindex&gt ={g・(t_a/2)^2 - 2・h_d}/ (2・t_c)]and the capacity to jump higher within shorter contact time[DJ_&ltindex&gt = (1/8・g・t_a^2) /t_c]are calculated by using contact time (t_c) , air time (t_a) and dropping height (h_d) of DJ, and g (9.81 m/s^2). Interrelationships between DJ_&ltindex&gt F_&ltindex&gt, P_&ltindex&gt t_c and t_a were examined in 93 male athletes of 14 sport events. These results showed the best index was DJ_&ltindex&gt because of reflecting both F_&ltindex&gt and P_&ltindex&gt, and t_c and t_a. 3. The specificity of leg strength and power was investigated by comparing with DJ_&ltindex&gt height of counter movement jump (CMJ-H) and maximum strength exerted by squat posture at 90°of knee angle (S-MAX) in 93 male athletes of 14 sport events. This result showed all sport athletes were grouped into A, B and C type. Jumper and sprinter, gymnast and kendo atheletes belonged to A type which showed the character of large in order of DJ_&ltindex&gt, CMJ-H and S-MAX. Skater, ski jumper and swimmer belonged to B type which showed contrary character of A type. Ball game player and long distance runner belonged to C type which did not show difference among them. But excellent players for jump and footwork in ball games showed the same character as jumper and sprinter. These results lead to the conclusion that we should evaluate not only the general leg strength and power but also the capacity for the ballistic and SSC movement by measuring DJ_&ltindex&gt when coaches scout for sport talents and athletes practice the training according to specificity of strength and power. It should also be added that DJ_&ltindex&gt is a practical index which can be simply and exactly measured by using matswitch.

著者

松竹 貴大 夏原 隆之

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

pp.22084, (Released:2023-02-09)

著者

牛来 千穂子 水落 文夫 内山 治樹

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.67, pp.961-981, 2022 (Released:2022-11-18)

参考文献数

43

---

This study aimed to develop a “Scale for Teamwork in Sport” (STS) and examine its reliability and validity. We conducted a questionnaire survey of 432 athletes from 45 university sports teams across Japan. Based on exploratory factor analysis, 4 upper factors, 10 lower factors, and 40 items were extracted. The 4 upper factors, “team orientation”, “team leadership”, “team process”, and “communication” corresponded to Dickinson and McIntyre's (1997) conceptual model. The following results were obtained regarding the reliability and validity of the STS: 1) Its reliability was confirmed via sufficient internal consistency and temporal stability of Cronbach's alpha and retest reliability coefficients. 2) A significant correlation was found between the STS and factors of an existing scale. The average score for each STS factor of the team with high competition level was significantly high. Therefore, the criterion-related validity of the scale was supported. 3) As a result of confirmatory factor analysis, the goodness-of-fit of the model found in all 4 scales corresponded to the upper factors. In addition, covariance structure analysis was conducted on the validation model, and its goodness-of-fit was acceptable. Furthermore, significant path coefficients were confirmed among the elements, which excluded the path from “monitoring” to “coordination”. These results support the construct validity of the STS. These findings indicate that the STS has high reliability and validity and can evaluate teamwork in sports from a comprehensive and process perspective. Hence, a new simplified scale was developed that conformed to Dickinson and McIntyre's (1997) teamwork model and could be used in sports. These results provide new insight on team building.

著者

木梨 雅子

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.43, no.5, pp.234-244, 1998

---

The purpose of this study is to investigate the negotiations between the Tokugawa shogunate and the 'Sumo-kaisho'(an organization of sumo wrestlers and referees)regarding the arrangements for the 'Joran-sumo match in the Kansei era', which was beld in the presence of the Shogun in 1791, and to clarify the principles underlying the arguments for and against the appointment of Zenzaemon Yoshida XIX to the top of the sumo party concerned. The archives used for this study were selected from the National Diet Library, and were written down by the Tokugawa shogunate for the record. The 'Joran-sumo match in the Kansei era' was the first one held in the Edo period, so the Tokugawa shogunate was unsure how to hold this momentous event. Therefore he appointed the Sumo-kaisho to arrange the Joran-sumo match for him. The Sumo-kaisho had been organized under Zenzaemon Yoshida XIX, who had asserted that he had been the chief of the sumo party for generations all throughout Japan, and that the Sumo-kaisho had been his apprentice. Therefore, the Sumo-kaisho required that the Tokugawa shogunate appoint Zenzaemon Yoshida XIX to the 'sumo-shiki'(a sumo ceremony)for the Joran-sumo match since both the Sumo-kaisho and the Tokugawa shogunate recognized that the 'sumo-shiki' was essential for the Joran-sumo match. However the Tokugawa shogunate refused, and instead appointed Shonosuke Kimura VII, deciding that Zenzaemon Yoshida XIX was the chief only in name. Accordingly Shonosuke Kimura VII was made the head organizer of the Sumo-kaisho based on the fact that Shonosuke Kimura VII had had several experiences as substantial organizer, whereas Zenzaemon Yoshida XIX had no practical experience. Furthermore, his background was very suspicious. However, the Sumo-kaisho had been united behind Zenzaemon Yoshida XIX and his background, so if they allowed his background to questioned, it would show a lack of unity to the Sumo-kaisho's part. Therefore, the Sumo-kaisho insisted on appointing Zenzaemon Yoshida XIX to do the 'sumo-shiki'. In the end, the Tokugawa shogunate appointed Zenzaemon yoshida XIX to do the 'sumo-shiki' and his questionable background was overlooked. As a result, the 'Joran-sumo match in the Kansei era 'proved to be an important factor in the Sumo-kaisho's effort to gain authority as the leading organization in sumo.

著者

新井 博

出版者

社団法人日本体育学会

雑誌

体育學研究 (ISSN:04846710)

巻号頁・発行日

vol.49, no.6, pp.573-582, 2004-11-10

被引用文献数

2

---

The purpose of this paper was to clarify the situation in the Department of Defense of Austro-Hungary, which dispatched Major Theodor von Lerch to Japan in 1910. The historical materials referred to were the official documents saved at the General Staff Office in Vienna and the articles left in Japan by von Lerch. The results of this study can be summarized as follows: (1) As a task in the General Staff Office in Vienna, von Lerch had started to study the conditions of the Army in the Far East from 1906. (2) The General Staff Office in Vienna attempted his dispatch to investigate the conditions of the army in three countries on the eve of World War I. (3) The Ministry of Defense in Austro-Hungary decided to dispatch von Lerch to Japan for the benefit of the army and his advantage in carrying out the assigned tasks. However, von Lerch himself had an interest in Japan. (4) The Ministry of Defense in Austro-Hungary communicated with the Ministry of Foreign affairs and its military attache in Japan and China, requesting that it enter into negotiations to accomplish the dispatch of von Lerch. (5) von Lerch's wish to be allowed to study on an assignment with the Japanese Army was accepted by both the Japanese and Chinese governments as a result of ten months of negotiations.

著者

高松 祥平 青山 将己 久保 雄一郎 伹尾 哲哉

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

pp.19021, (Released:2019-08-30)

参考文献数

46

---

We examined the process of development of the first professional female volleyball club in Japan, Victorina Himeji, in relation to its stakeholders. For the purposes of this study, a professional sports club was defined as an organization composed of professional athletes who receive compensations through engagement in sports. We collected qualitative data from websites, papers, books, and archive material. In addition, we conducted a semi-structured interview with Mr. Akira Hashimoto, chief executive of Himeji Victorina. This revealed the involvement of 13 primary stakeholders and 11 secondary stakeholders in Victorina Himeji’s development from its conceptual stage up to the present. Analysis of Victorina Himeji’s organizational development over time revealed 3 phases. Phase 1 was the period from the launch of the club-founding preparatory committee until the establishment of the joint-stock company: Himeji Victorina. During this period, Mr. Masayoshi Manabe, who has been the head Japan women’s volleyball coach until 2016, and interested locals joined together with the idea of creating a professional volleyball team in Himeji city, a period during which Mr. Hashimoto later joined and strengthened the management. Phase 2 was the period following the establishment of Himeji Victorina until its official admission to the V. League. This was the period during which the organization conducted tryouts, scouted and collected players with prospects of strengthening the team, and strengthened the main office staff at the club’s headquarters. In addition, Phase 2 saw the beginning of sponsor recruitment, in addition to strengthening of the top team, along with activities to popularize volleyball and train players through the establishment of the general incorporated association: Victorina Elite Academy. Finally, Phase 3 was the period following the official admission to the V. League until the present. Overall, this study clarified the relationships with stakeholders and engagements as a club, which were both crucial elements in the process of founding this professional sports club and ensuring its growth as an organization.

著者

沼津 直樹 藤井 範久 小井土 正亮

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.67, pp.519-536, 2022 (Released:2022-07-08)

参考文献数

31

---

This study aimed to clarify the biomechanical characteristics of preparatory motions required for defensive diving by soccer goalkeepers (GKs). Seventeen collegiate male GKs and 14 collegiate male outfield players (strikers) participated. The experimental setup was based on a previous study (Numazu et al., 2019), and the experiment was conducted using simulated shooting situations in the penalty area. Three-dimensional coordinate data for the GKs and strikers were captured using 2 motion capture systems with 24 cameras (250 Hz, 16 cameras for the GKs and 8 cameras for the strikers). The 2 systems were synchronized by an analog signal (1000 Hz). We analyzed 430 trials where the GKs dived toward the shot (NU: 75 trials, NM: 94 trials, NL: 37 trials, FU: 58 trials, FM: 83 trials, and FL: 83 trials). The participating GKs performed a small jumping motion vertically upward, similar to a split-step, as a preparatory motion. The primary variables computed were as follows: elapsed time of preparatory motion, velocity of the center of gravity at takeoff in the frontal plane, stance width divided by leg length, height of preparatory motion, segment angle of the trunk in the sagittal plane, and angles of the lower limb joints. The major findings were as follows: 1) To respond quickly to the shot, the GKs leaned the trunk forward and flexed the lower leg joints, externally rotated the hip joints of both legs, abducted the hip joints, and opened the feet to 70% of the leg length. 2) GKs performed the take-off of the preparatory motion simultaneously when the striker made contact between the support leg and the ground. 3) It was considered that GKs changed their movement to match the flight trajectory of the ball later than CSon.