Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences)最新文献

Consideration of the Georgian ethnic martial art chidaoba from a historical and cultural viewpoint 从历史文化的角度对格鲁吉亚民族武术奇道巴的思考

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2020-10-09 DOI: 10.5432/jjpehss.20004

Naoki Nakata, Koji Misima, Takayuki Yokoyama

引用次数: 0

Structure of subjective adjustment to physical education classes for elementary school students 小学生体育课的主观调整结构

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2020-06-16 DOI: 10.5432/ijshs.201928

M. Kaji, Y. Ono

{"title":"Structure of subjective adjustment to physical education classes for elementary school students","authors":"M. Kaji, Y. Ono","doi":"10.5432/ijshs.201928","DOIUrl":"https://doi.org/10.5432/ijshs.201928","url":null,"abstract":"This study aimed to reveal the SA-PEC of elementary school students in Japan through the development of an ‘‘SA-PEC Scale for Elementary School Students,’’ and to reveal the features of SA-PEC for different student grade levels and sex. As a result of the study, it was revealed that subjective adjustment toward PE classes was comprised of 6 factors, with a total of 17 items of ‘‘feeling of acceptance and trust’’, ‘‘existence of task and purpose’’, ‘‘feeling of growth’’, ‘‘presence of peers’’, ‘‘self-expression’’, and ‘‘affin ity toward PE classes’’. Next, examinations in differences between school grades showed that scores were significantly higher among sixth graders than the fifth graders in the factors of ‘‘existence of task and purpose’’, ‘‘feeling of growth’’, ‘‘presence of peers’’, and ‘‘affinity to ward PE classes’’. Furthermore, an examination into sex difference showed that scores were significantly higher among boys than girls in the factors of ‘‘feeling of acceptance and trust’’, ‘‘existence of task and purpose’’, ‘‘feeling of growth’’, ‘‘self-expression’’, and ‘‘affinity toward PE classes’’. From this, the P.E. subjective adjustment scale is believed to reflect the extent to which the students have been able to internalize the PE course’s objectives.","PeriodicalId":243726,"journal":{"name":"Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences)","volume":"247 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116522436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of changes in hitting location on bat-swing parameters in baseball batting 棒球击球中击球位置变化对挥棒参数的影响

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2019-12-16 DOI: 10.5432/JJPEHSS.18058

Y. Morishita, Y. Katsumata, Tsutomu Jinji

{"title":"The effect of changes in hitting location on bat-swing parameters in baseball batting","authors":"Y. Morishita, Y. Katsumata, Tsutomu Jinji","doi":"10.5432/JJPEHSS.18058","DOIUrl":"https://doi.org/10.5432/JJPEHSS.18058","url":null,"abstract":": The purpose of the present study was to clarify the influence of swing parameters by changing the hit ting point in space in baseball batting. Twenty-eight skilled baseball players (12 professional and 16 university-level) participated. The participants were instructed to hit a ball that was tossed from 5 m away in the direction of the pitching mound. The balls were tossed to various locations with reference to the home plate. The participants were required to hit the balls in a specific direction according to the tossed course, i.e., a ball tossed to the inside of a home plate was stroked toward the same-field direction and one tossed outside of the home plate was stroked toward the opposite-field direction. The motions of the ball and bat during these attempts were recorded using a motion capture system operating at 500 Hz. The 3D coordinates of the ball center (hitting point) and the swing parameters included the speed of the head of the bat (bat-head speed) and the angle of the swing from a horizontal line (swing angle) measured immediately before ball impact and the time from the start of the swing to ball impact (swing time). These parameters were calculated in each trial. Analysis of a total of 644 trials revealed that the bat-head speed tended to increase as the hitting point moved inside, forward, and low. Furthermore, the swing angle and swing time tended to increase as the hitting point moved inside, forward, and high. Stepwise multiple regres sion analysis demonstrated that the bat-head speed and swing angle were independently associated with (in the following order) the distance in the pitcher’s direction, the hitting height, and the inside-outside direction course (R 2 =.360 and R 2 =.589, respectively). These results suggest that the timing of swing initiation and bat acceleration during a swing motion are the main factors changing the swing parameters, and that in order to sharp hit a ball, it is important to impact the ball with the hitting point as close to the pitcher as possible.","PeriodicalId":243726,"journal":{"name":"Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114208416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The direction of research on physical education as “becoming” 体育教育“变”的研究方向

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2019-12-16 DOI: 10.5432/jjpehss.18070

M. Kubo

引用次数: 0

Study on the notational analysis of ‘Russian’ “俄语”的符号分析研究

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2019-12-16 DOI: 10.5432/jjpehss.17124

Ryuichiro Yamashita, Daiki Morii

引用次数: 0

Construction and fluctuating views of the male body: 男性身体观的建构和波动:

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2019-12-16 DOI: 10.5432/jjpehss.19025

Kazuma Takezaki

引用次数: 0

Aerodynamic variation with differences in the number of riders in a cycling group 空气动力学变化与骑自行车的人数不同

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2019-12-16 DOI: 10.5432/jjpehss.18086

K. Shirasaki, Kaoru Yamanobe, K. Akashi, Wataru Takashima

{"title":"Aerodynamic variation with differences in the number of riders in a cycling group","authors":"K. Shirasaki, Kaoru Yamanobe, K. Akashi, Wataru Takashima","doi":"10.5432/jjpehss.18086","DOIUrl":"https://doi.org/10.5432/jjpehss.18086","url":null,"abstract":": In when riding in a group during cycling competitions, cyclists may become located side-by-side during positioning, rotation, and overtaking. The primary objective of this study was to analyze aerodynamic variation with differences in the number of riders (1 and 3) while cycling in parallel. It was assumed that the last cyclist would be riding in parallel with the immediate leading cyclist in the group. Wind tunnel experiments were implemented using a static mannequin and athletes as participants. A floor-mounted 6-component force balance was employed for conducting the measurements, and the athlete sat on a bicycle mounted on a bicycle stand. Experiments were subsequently conducted on groups comprising 2 riders (2R) and 4 riders (4R). The aerodynamic drag of the last rider (i.e., the mannequin) was measured for a wind speed of 16.67 m/s and for various relative spatial positions with respect to the front end of the immediate leading rider’s front wheel as the origin (longitudinal distance X = -1.38 m–0.07 m, lateral distance Y = 0.25 m–0.90 m; X = -1.38 m was applied solely when Y = 0.90 m for the case of 2R). The results indicated that at Y = 0.75 m–0.90 m, the drag of the last rider for both the 2R and 4R cases was equal to or higher than that for the single state. At Y = 0.50 m, the drag in the 2R case was equal to or higher than that for the single state (maximum value, 108.5% of the single state), whereas the drag in the 4R case was less (87.8–95.1%). It was also found that when a parallel cyclist approached a riding group comprising 3 or more cyclists, it was possible to decrease the drag to a value less than for the single state by riding in a position strictly adjacent to the riding group. : ences","PeriodicalId":243726,"journal":{"name":"Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130260090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the guiding principle of collaborative acts in team sports 探究团队运动中协作行为的指导原则

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2019-12-16 DOI: 10.5432/jjpehss.19061

H. Uchiyama

引用次数: 1

Content and function of thought in motor skill execution 思维在运动技能执行中的内容和作用

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2019-10-18 DOI: 10.5432/JJPEHSS.17127

Kiminori Aritomi, M. Toyama

引用次数: 1

2018年度地域協力学会研究活動報告 2018年度地域协力学会研究活动报告

Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Pub Date : 2019-06-17 DOI: 10.5432/jjpehss.64-01-a1-a15

引用次数: 0