著者

Koji MUROFUSHI Shinji Sakurai Koji Umegaki Kazutoshi Kobayashi

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.3, pp.116-128, 2005 (Released:2008-01-23)

参考文献数

18

被引用文献数

13 17

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The aim of this study was to compare the radius of curvature and the estimated head speed as measured by sensors attached to a hammer with those calculated by video image analysis. The participant was the Japanese record holder(83m47). He threw a hammer with sensors which measured the force exerted along the length of the hammer cable using a tension meter made of a metal plate to which strain gauges were affixed, and the angular velocity perpendicular to the hammer cable using two IC accelerometers whose axes were aligned together with the hammer cable. The radius and speed obtained using the sensors were similar to those obtained from video analysis in values, but were slightly out of phase. This is because measuring the angular velocity by sensors eliminates translational motion and only produces results for rotational motion. The length of time required to obtain these results was shortened by the use of a hammer with sensors. Therefore, the system using sensors attached to a hammer will enable athletes and coaches to interpret the data about each throw while it is still fresh in their minds.

著者

Koki Sasabe Yuta Sekine Norikazu Hirose

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.202205, (Released:2022-10-15)

参考文献数

21

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The change-of-direction speed is an essential physical component in basketball. This study aimed to reveal the relationship between change-of-direction kinematics and the related motor abilities in basketball players. Motor abilities, including squat, sprint speed, vertical jump, and horizontal jump, were measured in 14 male collegiate basketball players. Furthermore, the change-of-direction speed and kinematics during the change-of-direction task, including the trunk lean angle and center-of-gravity height, were evaluated. Correlations between change-of-direction time and kinematics were assessed using the Pearson product-moment correlation coefficient. Once significant correlations were detected, correlations between motor abilities and change-of-direction kinematics variables related to change-of-direction time were assessed using the Pearson product-moment correlation coefficient. There were significant correlations between change-of-direction time and center-of-gravity height (r = 0.54), and trunk lean angle (r = -0.74). Moreover, there was a strong correlation (r = -0.53) between the center-of-gravity height and lower body strength. Improving lower muscle strength and change-of-direction kinematics may be necessary to enhance the overall change-of-direction performance.

著者

Jun Mizushima Joanne Kyra Loo Shermaine Lou Clifford J. Mallett

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.20, pp.241-248, 2022 (Released:2023-01-12)

参考文献数

22

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Sport coaches develop their coaching knowledge and identity as coaches through their life experiences over time. However, limited knowledge exists for what motivates youth coaches in Asia to coach, how they learn their craft, and how they develop as coaches. Therefore, the purpose of this study was to investigate the developmental pathways of youth sport coaches in Singapore. Eleven youth sport coaches in Singapore (10 males, 1 female) from a range of sports were selected to take part in semi-structured interviews consisting of three sections: coaches' profile, valued learning experience, and motivation. Qualitative thematic analysis was implemented to understand the key aspects of coach development in their coaching careers. Data yielded six main categories about valued learning experiences: (1) interaction with other coaches, (2) learning from overseas practice, (3) athletic experience, (4) on-the-job experience, (5) mentoring, and (6) coach education program. Two main categories about coach motivation were identified. These were: (1) initial motivation to be a coach—sense of purpose and (2) motivation to continue coaching—enjoyment, satisfaction, and passion.

著者

Sookyoung Park Seunghoon Lee Yunkyung Hong Youngjeon Lee Kanghui Park Dongkwang Shin Sang-Rae Lee Kyu-Tae Chang Yonggeun Hong

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.10, pp.50-57, 2012 (Released:2012-09-13)

参考文献数

35

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This study compared the range of hallux valgus angle (HVA) deformity between basketball players and same aged non-basketball players as controls. The participants included 21 basketball players (9 males, 12 females, mean age 18 years) and 36 age-matched college students (19 males, 17 females, mean age 20 years) who served as controls. After direct palpation of the first metatarsal and proximal phalange, we measured the HVA deformity using a photographic approach in the women basketball players and a goniometer for the men basketball players and all controls. The HVA was greater in basketball players than in the controls. Among female basketball players, the HVA was significantly greater in guards compared with forwards and centers. In conclusion, playing basketball may increase the HVA. The greater increase in HVA among guards might arise because they are required to make diagonal and horizontal movements that increase the burden on the foot. In general insole or ergonomic shoes could reduce pain, improved walking ability, and hallux valgus angle for prophylactic or therapeutic approaches. Therefore, an appropriate preventive interventional program should be developed.

著者

Susumu Sato Shinichi Demura Noriaki Sugano Hajime Mikami Tetsuhiko Ohuchi

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.6, pp.113-119, 2008-12-30 (Released:2009-11-05)

参考文献数

27

被引用文献数

1 5

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This study aimed to examine the characteristics of handedness in Japanese adults based on gender differences, the presence of left-handed (LH) relatives and experiences with the forced conversion of handedness. Subjects were comprised of 4668 Japanese adults ranging from 15 to 29 years of age (3127 males 18.8±1.8 years old and 1541 females 18.8±1.4 years old). We investigated their subjective handedness, the presence and type of LH relatives, and their experiences with forced conversion of handedness. Although there was no gender difference in the incidence of “innate LH (a subject who had experienced forced conversion of handedness, or a LH subject without experience in the forced conversion)”, females underwent more forced conversion of handedness and had a higher incidence of subjects whose handedness changed from LH to RH. There was no significant difference in the proportion of forced conversion based on the presence of LH relatives, but the incidence of innate LH was higher in subjects with LH relatives and the proportion of LH subjects who remained unchanged after forced conversion was also higher in subjects with LH relatives. Among the subjects with LH relatives, the incidence of current LH was significantly higher in subjects with LH grandparents or parents than siblings. These findings may suggest that forced conversion may influence a gender difference in the incidence of LH. In addition, the presence of LH relatives genetically and environmentally (imitation) influences handedness, and the influence is greater in parents than siblings.

著者

Robert M. Malina

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.2, pp.50-66, 2004 (Released:2008-01-23)

参考文献数

93

被引用文献数

64 90

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The development of motor competence during infancy and childhood is dependent upon and influenced by the growth and maturity characteristics of the child interacting with the environment in which a child is reared. Environmental opportunities and restraints for movement interact with the biological substrates of growth and maturation to determine the motor repertoire of the child. This paper provides a brief overview of motor development during infancy and early childhood and then highlights several specific areas and/or questions: critical evaluation of stages for specific movement patterns; extension of the dynamical systems framework; genotypic contributions to motor development; metabolic and physiological correlates of motor development; relationship of motor development to the growth of the brain, status at birth and early postnatal growth; and social contexts of motor development.

著者

吉田 和人 山田 耕司 玉城 将 内藤 久士 加賀 勝

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.59, no.1, pp.227-236, 2014

被引用文献数

4

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The rotation speed of the ball spin has been considered a key factor in winning table tennis matches. This study quantified the rotation speed (rotations per second: rps) of service balls delivered by quarter-finalists in the 2009 World Table Tennis Championships. Ball services were recorded during the quarter-finals of both the men's and women's singles, involving 4 matches and 8 players per gender, using a high-speed video camera (1000 fps) for calculation of the rotation speed, and a standard video camera (30 fps) for distinguishing players and aces (including those touched by the receiver). Eventually, the rotation speeds of 329 services were calculated, and these ranged from 13.7 to 62.5 rps. For men, 50-60 rps was the most frequent (40.0%) range of the rotation speeds, while for women, the corresponding range was 40-50 rps (43.8%); the average (±SD) rotation speed was significantly greater for men than for women (46.0±9.0 vs. 39.2±9.3 rps, p<0.001). The fastest rotation speed was 62.5 rps for both genders. Chinese men produced a slower rotation speed than did other men (43.5±8.9 vs. 51.0±6.8 rps, p<0.001). For women, however, the rotation speed was similar between Chinese players and the others (39.9±10.2 vs. 38.5±8.2 rps). The rotation speeds of aces were scattered over a wide range of 37.0-58.8 rps for men and 27.8-62.5 rps for women, implying a weak association between aces and fast rotation. These pioneering data may help clarify some of the technical and tactical aspects of table tennis, and can be used to develop training and game strategies for successful performance.<br>

著者

Jung-uk Won Kaoru Kitamura

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.4, pp.233-251, 2006 (Released:2008-01-25)

参考文献数

56

被引用文献数

14 18

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The purpose of this study was to examine motivational factors affecting consumption behavior of K-league and J-league spectators, and their predictability to explain it. We found that 10 motivational factors significantly, but not sufficiently explained the current attendance frequency of the K-league spectators, whereas these factors well predicted their future consumption behavior. It was considered that there is great potential in the K-league spectator market. The results of the J-league spectators indicated that team identification and vicarious achievement were strong predictors to explain the variance in the game attendance frequency of the J-league spectators, and these results were consistent with the results of Mahony, et al., (2002). However, we found a new predictor (social interaction) to explain this variance. Also, we found that escape was a new positive predictor to explain the intention to attend future games of the K-league and J-league spectators, and escape, player, and team identification were related to the future merchandise consumption of both the K-league and J-league spectators.

著者

Hayato Yamamoto Masanori Takemura Misato Tachibana Junzo Tsujita Tatsuya Hojo

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.202001, (Released:2020-05-30)

参考文献数

18

被引用文献数

1

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Purpose: The purpose of this study was to analyze the impact of match results (win-loss, score differential) on the physical performance of rugby union teams to improve training and conditioning and provide ideas for use on the playing field. Methods: Data were obtained from 45 official matches over the 2013, 2014, and 2015 seasons of one team. Global positioning system units with built-in accelerometers were worn by the players; the per-match total distances, accelerations, and impact forces were calculated for the forwards and backs. Match results consisted of two elements: win–loss result and score differential. Results: Data showed that each parameter had high values in closely fought matches when a team lost or when the point differential was small. In addition, physical performance was impacted differently from one position to another. Forwards engaged in significantly less high-acceleration and high-impact activity in wins but significantly higher activities in close matches (p < 0.05). Backs engaged in significantly higher impacts (i.e., harder/more tackles) in close matches (p < 0.05). Conclusions: Based on these data, some suggestions for new approaches that can be adopted by strength and conditioning coaches to optimize training-related performance and prevent sports injuries have been included.

著者

Takaharu Nakamura Hironobu Tsuchiya

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.201910, (Released:2020-03-13)

参考文献数

46

被引用文献数

1

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Posttraumatic growth (PTG) is viewed as a positive psychological change resulting from the struggle with trauma. This study was designed to prospective examine the association of Hardiness and Social Support with PTG following athletic injuries. University student-athletes (N=235) completed a baseline survey that included questions about socio-demographics, and the Japanese version of the Hardiness Scale for University Student at Time 1 (T1). The same athletes completed a second survey (T 2) that included questions about experiences of sports-related injuries, the assessment of Subjective Units of Distress (SUDs), and responding to the Japanese version of the Social Support Scales for University Students, 14 months after T1. Four months later (T 3), 209 of the same athletes completed the PTG Scale After an Athletic Injury (PTGS-AI). Data of 92 participants that met the screening criteria were analyzed using multiple regression analysis. The results indicated that appraisal support was the only factor that significantly predicted PTG (β=.48, p<.01) after adjusting for potential covariates such as age and gender. Moreover, hierarchical regression analysis indicated that the association of hardiness and appraisal support with PTG was different for different PTG subscales. The interaction between hardiness and appraisal support was significant for Relating to Team Members (F (1, 87) =3.12, p<.05) and Psychological Strength as an Athlete (F (1, 87) =5.02, p<.01). These findings suggest that developing an environment in which athletes receive appraisal support could contribute to their psychological growth.

著者

Rikido Tomikawa

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.4, no.Special_Issue_2006, pp.103-109, 2006 (Released:2008-01-25)

参考文献数

11

被引用文献数

2 2

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Bukh is a Mongolian traditional sport, in which the wrestler's body represents a beast and a bird of prey, namely supernatural strength. This is recognized as a numinous embodiment or spiritual possession. In the meantime, the incarnation rite of Bukh also functions as that of the community of Nutag. The symbolism of Bukh, in this meaning, is realized in two ritual spaces, the Ovoo festival whose cultural background lies in Nutag and Naadam which is performed as a ceremony. Moreover, the combination between Ovoo and Naadam festivals and Bukh serves a function as a mechanism to sustain collective memories and identity, perpetuating the identity of the Mongolians.

著者

Norihide Sugisaki Hiroaki Kanehisa Yasuo Kawakami Tetsuo Fukunaga

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.3, pp.100-109, 2005 (Released:2008-01-23)

参考文献数

20

被引用文献数

9 10

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This study aimed to investigate the mechanisms of mechanical work and power enhancement of muscle-tendon complex (MTC) in rebound exercise by quantifying in vivo behavior of fascicle and tendinous tissue of human medial gastrocnemius muscle (MG). Subjects jumped on a sledge apparatus using only ankle joint with the following two conditions: plantar flexion without counter movement (PFJ) and rebound jumping from a height of 26 cm (RJ). The behavior of fascicle and tendinous tissue of MG in vivo was determined using ultrasonography. The relative contribution of tendinous tissue to the mechanical work of MTC during plantar flexion phase (PF phase) was 85% in RJ. The maximal mechanical power of tendinous tissue during the PF phase in RJ was about three times greater compared to that in PFJ. There was no significant difference in the mechanical power of fascicle during PF phase between the two conditions, while the mechanical work of fascicle in PFJ was less than that in the PF phase of RJ. In RJ, fascicle was stretched during the dorsiflexion phase. These findings indicated that, in rebound exercise using ankle joint, (1) the enhancement of mechanical work and power of MTC was due to the reuse of elastic energy stored in tendinous tissue during dorsiflexion phase, and (2) fascicles were stretched during dorsiflexion phase.

著者

釜崎 太

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.55, no.2, pp.481-498, 2010

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This study focuses on the early theory of play in the school (<i>"Schulspiele"-Theorie</i>) of Konrad Koch, who advocated his "play movement" (<i>Spielbewegung</i>) at the Martino-Katharineum gymnasium in Braunschweig at the end of the 19^th century.<br> According to Koch's <i>"Schulspiele"-Theorie</i>, sports education shows isolated pupils how to conform to norms on their own initiative, i.e. following rules and norms as a requirement in sports, and also improves self-discipline. However, at least at the inception of the thesis of play in the school (<i>"Schulspiele"-Thesis</i>) written in 1878, the school was placed as an associate between "home and family" and "nation", where not only "lessons" were required, but inside the free gymnastic group (<i>freie Turnerschaft</i>) a community was to be built on the basis of an independent connection between teachers and students, as well as amongst the students themselves. The ideal form for this formatted collective was not further defined by Koch, who did not intend to have this collective focusing on "nation", but rather aimed to build this on the basis of a civil collective. Although at this time Turnern idolized anti-foreign nationalism, Koch admired the significance of the English style of sports education. One can say that the <i>"Schulspiele"-Theorie</i> based on a civil collective had aims that were quite different from gymnastics in school (<i>Schulturnen</i>) that valued nationalism.<br> Nevertheless, by the turn of the century, Koch had also published an extremely militaristic thesis. At this time, the collective building based on play in the school (<i>Schulspiele</i>) was to be described as something that was clearly dependent on the "nation". Future issues will focus on how and in which way Koch's <i>"Schulspiele"-Theorie</i> subsequently found its way into forms of authority in modern nations.<br>

著者

高岡 治子

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.55, no.2, pp.525-538, 2010

被引用文献数

1

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Japanese married women only began participating widely in sports after the Tokyo Olympic Games in 1964. It is often said that sports activities by housewives indicated their liberation from isolated domestic life, thereby promoting gender equality. However, close examination of the systemic characteristics of the 'Mothers' Volleyball' movement (based on its ideology, competition rules and the nature of its routine activities) has shown that these activities possess both a recycling structure that releases housewives from their homes temporarily and reflects the participants' 'housewifeliness', thereby reinforcing the separation of roles between the sexes.<br> In order to clarify by whom and for what purpose this recycling structure was created, this paper focuses on the organizing bodies (sponsor organizations, supporting companies and other bodies that organized and ran the national championships, incorporating the systemic characteristics of Mothers' Volleyball), analyzing the reasons for their involvement with the movement and the benefits they derived from it. The results show that the periodic reflection of housewifeliness, which housewives needed in order to continue in their role as housewives, was necessary for the economic and social benefit of all the organizations involved, and that this is why these organizations committed themselves to the movement.<br> Participating in sports freed housewives from the routine of daily home life, and activities such as helping to organize competitions promoted their socialization and changed their image from that of 'isolated housewife' to 'sporting housewife' and further to 'independent housewife'. The recycling structure mentioned earlier can therefore be thought of as being a directional spiral, and the organizing bodies that ran the national championships can be said to be its drivers.<br> This spiral, which helped to reproduce 'housewifeliness', supplied society with good-quality labour for sustaining Japan's rapid economic growth, which was a political issue in the 1970s. The participation of housewives in sports as one of the activities of parent-teacher associations and women's associations can also be said to have contributed to local revitalization, another political topic at that time. Meanwhile, making sports one of their routine, repeated activities made housewives' lives more satisfying, so that Mothers' Volleyball acted as a medium for the formation of a conjugate relationship between housewives and society.<br>

著者

Gen Horiuchi Shinji Sakurai

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.14, pp.94-101, 2016 (Released:2017-03-17)

参考文献数

19

被引用文献数

4 6

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The purpose of this study was to identify mechanisms to increase bat head speed in baseball batting, from the view-point of kinetics. The batting motion of ninety-nine amateur baseball players was recorded with a motion capture system, and the kinematics and kinetics of the bat were analyzed. The bat's rotational power increased with the torque exerted on the bat's grip. However, torque and rotational power declined just prior to impact. It can be interpreted that these declines arise from a decrease in torque exerted by the wrist's periarticular muscles as the bat's rotational velocity increases (muscle force-velocity relationship). On the contrary, the bat's translational power increased just prior to impact. Judging from the relationship between the force exerted on the bat's grip in the direction of the bat's long axis and the bat head speed, the bat's translational power seems to depend on the bat's grip velocity in the direction of the bat's long axis. It was revealed that the bat's energy, by the application of rotational and translational power at different times, contributes to an increase in bat head speed in baseball batting.

著者

Norihide Sugisaki Hiroaki Kanehisa Kenji Tauchi Seita Okazaki Shigeo Iso Junichi Okada

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

vol.9, pp.1-7, 2011 (Released:2011-04-19)

参考文献数

33

被引用文献数

9 23

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The purpose of this study was to investigate the relationship between 30-m sprint running time and muscle cross-sectional areas of the psoas major and lower limb muscles. In sixteen male college short and middle distance runners, the muscle anatomical cross-sectional areas (CSAs) of the psoas major, the quadriceps femoris, the hip adductors (ADD), the hamstrings, the triceps surae, and the tibialis anterior and extensor digtrum longus complex (DF) were measured using a magnetic resonance imaging system. In addition, the relative values of CSA to the two-thirds power of body weight (CSA-to-BW2/3) were calculated. A stepwise multiple regression analysis produced a prediction equation (R2=0.605) of 30-m sprint running time with explanatory variables of ADD CSA-to-BW2/3 and DF CSA. The ADD CSA-to-BW2/3 had a negative partial regression coefficient (r=−0.768, p<0.01) and the DF CSA had a positive partial regression coefficient (r=0.526, p<0.05). From the present results, it is concluded that to have greater hip adductor muscles relative to the body size and smaller dorsiflexors is advantageous for achieving higher performance in 30-m sprint running.

著者

Maki Itoh Mary A. Hums Akiko Arai Etsuko Ogasawara

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.201630, (Released:2018-03-02)

参考文献数

22

被引用文献数

1

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The purpose of this qualitative study was to (a) determine structural barriers that must be overcome to cultivate female leaders and coaches and (b) study the development of a support system for female leaders and coaches. This study relied on in-depth interviews as the primary means of collecting data. Formal semi-structured interviews were conducted with seven former or currently active female Paralympians, including some who were current coaches. After analyzing the participants' responses, five distinct themes emerged: (a) social identity, (b) challenges of “double minority status” as women and persons with a disability, (c) underrepresentation of women as Paralympic coaches, (d) athletes wanting to be coaches indicating they needed formal training, and (e) current coaches feeling overwhelmed by task requirements not related directly to working with athletes. The first of these relate to realizing identity and the other four to overcoming barriers. The results offer insight into the career challenges and career perceptions of coaches and also former or currently active female Paralympians. The results provide researchers with insight into the status of careers of women in a segment of the sport industry, the Paralympic Movement, which has not yet been thoroughly explored.

著者

山田 理恵

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

2015

被引用文献数

1

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The game of <i>dakyugi</i> (literally, "hitting-ball-game"), involving three components of play (hitting a ball, throwing a ball, and pushing of opponents), is a traditional stick game that has been passed down to the present in Kuwana City (Mie Prefecture).<br>  The purposes of this study were to examine the process of the game's revival and cultural features, and to clarify the significance of <i>dakyugi</i> as a traditional sport in regional development through sports. The materials used in this study were mainly collected through fieldwork at the Rikkyo Area Great Meeting and interviews with members of the preservation association, as well as investigation of historical sources.<br>  In the Meiji era, <i>dakyugi</i> had been played as a bravery game by boys in the Kuwana <i>gijyuku</i>, which inherited the idea of the Rikkyou-kan, a school in the fiefdom of Kuwana. Although <i>dakyugi</i> declined after World War II, it was revived to mark the 150th anniversary of Matsudaira Sadanobu's death in May 1978.<br>  Today, <i>dakyugi</i> is performed at the Kuwana Municipal Rikkyo Elementary School supported by the <i>Dakyugi</i> Preservation Association. Boys and girls of the school play the game at the athletic meeting held jointly by the school and Rikkyo area community. The game of <i>dakyugi</i> in Kuwana is noteworthy in promoting the behavior pattern and style of <i>samurai</i> culture that characterized the Edo era. In addition, <i>dakyugi</i> is considered to play an important role in the revitalization of provincial cities and in the establishment of local regional identity.<br>  The significance of traditional Japanese culture is emphasized in the present school education program. The current study indicates that traditional Japanese sport culture can play an important role in regional development in Japan.<br>

著者

Lawrence P. Lai Jeffrey S. Shilt John S. Georgy

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

International Journal of Sport and Health Science (ISSN:13481509)

巻号頁・発行日

pp.201420, (Released:2015-12-14)

参考文献数

27

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Herpes Zoster, also known as Shingles, is an eruption of latent Varicella Zoster viral particles which classically leads to a dermatomal skin eruption. While the causes of this reactivation are yet unknown, Shingles usually affects older individuals or those who are immunocompromised due to other disease processes or pharmacotherapy following organ transplant. We report the unique case of a world class triathlete who developed a painful dermatomal rash following a period of particularly intense training, travel, and competition. His training schedule for three months following the illness and return to competition is documented. The athlete's subsequent period of underperformance and profound fatigue suggest an inadequate recovery period. Review of the literature reveals a paucity of information describing an appropriate return to training and competition.

著者

大峰 光博

出版者

Japan Society of Physical Education, Health and Sport Sciences

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.60, no.2, pp.489-495, 2015

被引用文献数

2

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This study investigated trash talk among soccer players, focusing on whether it actually disturbed playing performance and whether the ability to ignore such trash talk was an asset to the game. The "Laws of the Game" of soccer stipulate that any player who uses "offensive, insulting or abusive language and/or gestures" should be dismissed from the field. Therefore, any penalty imposed on players for such behavior can be interpreted as sanctions for prohibited act.<br>   Furthermore, any game in which offensive or insulting remark are used was considered by reference to Kawatani's opinion about excellence and "failed athletic contest". When a referee penalizes a player appropriately for such behavior, it is suggested that the game has not "failed". On the other hand, as such behavior is often difficult for a referee to notice, an appropriate penalty is sometimes not administered. Therefore, it is suggested that an offensive or insulting remark is an act that indirectly destroys the ethos of a game. I conclude that the ability to ignore trash talk is not an asset to the game in principle, but that such ability is practically necessary.<br>