著者
Владимир Платонов
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.30, no.1, pp.1-14, 2016-10-20 (Released:2019-09-04)
参考文献数
35

アスリートが試合への準備を行うにあたっての理論および方法論は,専門的な法則性に基づく指針となるパラダイムや指導的理念となる専門的諸原則に基盤を置いている.それら専門的法則性とは,安定的で再現される関係性を示す.つまり,生まれ持った資質と,競技力の構成要素を高いレベルに向上させる可能性との関係,また,アスリートの身体に作用を及ぼすトレーニングの内的・外的要素と,その結果として起こる反応との関係性,動きの質的表徴と準備状態の様々な要素の関係性,準備状態の様々な面と試合活動の最適な構造との関係性などである.これら原則は,アスリートが試合への準備を行う中で,実際のトレーニングに起こり得る典型的な状況においていかにあるべきかということや,コーチングをどこまで創造的におこなってよいかの指針を示すうえで重要な役割を果たしている.またこれらの原則は,科学的研究によって導き出された結果を解釈するために重要であることはもちろんのこと,それと同様に,我々がしばしば遭遇する現代スポーツの実情からかけはなれた医学・生物学的分野におけるケースにも適用することが重要である.
著者
Владимир Платонов
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.33, no.1, pp.1-12, 2019-10-20 (Released:2019-11-19)
参考文献数
21

選手の多年にわたる競技生活では,大きく2つのステージに大別される.その1 つ目は,最高の競技力を形成するステージであり,これは,トレーニングを開始してから最高の競技成績に到達するまでの期間である. このステージは,     ①トレーニング開始段階     ②基礎的準備段階     ③専門的準備段階     ④最高の競技成績達成に向けた準備段階の4 つの段階に分けられる.選手の性別や個々の能力,種目の特性などによって,このステージの期間は最短で7-8年,最長で12-14年ほどと開きがある.     2つ目は最高の競技力の発揮,発展,維持するステージである.これは,選手が最高の競技成績を達成してから選手生活を終えるまでの期間であり,次の段階に分けられる.     ①個人の競技力を最大限発揮する段階     ②競技力を維持する段階     ③競技力漸減の段階     ④選手生活終了段階     これらの各段階の間に明確な線引きはない.というのも,選手の多年準備システムとは,競技力を形成・発揮するひとつの連続的なプロセスであるからだ.
著者
中澤 翔 瀧澤 一騎 厚東 芳樹 山代 幸哉 佐藤 大輔 丸山 敦夫
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.31, no.2, pp.209-217, 2018-03-20 (Released:2019-09-02)
参考文献数
34

The purpose of this study was to clarify the relationship between running distance over an 8-month period and both 5000 m running performance and aerobic capacity (VO2max, VO2VT, running economy). The 8-month study period was divided into two segments of 4 months each. It was found that long-distance athletes could run 5000 m in about 15 min 30 s. The analysis also confirmed the following: (1) athletes that ran longer distances in the 8-month period had better 5000m times; (2) they had higher VO2VT; and (3) athletes whose distances were longer in the first half of the study period had better VO2VT and 5000m records in the second half of the period. The anaerobic threshold reached a higher level in runners with greater training distance, resulting in an improvement in race results. Furthermore, based on the fact that the distance run in the first four months effects on VO2VT and 5000 m running times in the latter four months, this study demonstrates the possibility of training effects occurring after a certain latency period. The results implicated that it was important to track running distances as an indicator of race performance.
著者
杉本 祐太 前田 正登
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.26, no.2, pp.145-154, 2013-03-20 (Released:2019-09-02)
参考文献数
9
被引用文献数
1

Subjective effort is an adjustment in output performance, dependent on an athlete’s perception and it is an important factor in sprint training. To gain information about utilizing subjective effort in sprint training, this study investigates changes in sprint running movement due to the different subjective effort of athletes at various performance levels. The participants were 15 male collegiate sprinters, who were divided into high-level (n=7) and low-level (n=8) groups based on their personal best times in the 100 m dash. The participants performed 50 m sprints at five levels of effort ranging from 60% to 100%, with increases at 10% intervals. The final 10 m of each sprint was recorded by two high-speed video cameras to analyze each participant’s movement. The results are summarized as follows.     The decline in sprint speed at lower subjective effort was higher for the low-level group than high-level one. This was the reason why low-level group decreased swing back velocity of the leg with the change of knee joint angle increased below a subjective effort of 70%. And the achievement of sprint speed from a subjective effort of 90% to maximum effort was not practical because of knee extension during support phase. Moreover, below a subjective effort of 70%, the low-level participants’ movement during support phase differed from that of maximum effort sprint running. In contrast, the high-level participants’ movement was the same even a subjective effort of 60%.
著者
西谷 善子 川原 貴 山本 正嘉
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.28, no.1, pp.53-64, 2014-11-20 (Released:2019-09-02)
参考文献数
26
被引用文献数
1

This study aimed to develop the assessment of muscle strength and endurance in climbers, and clarify the profiles of muscle strength and endurance in Lead climbers, in relation to performance levels. Muscular strength and endurance, using a traditional hand grip strength dynamometer and an original new climbing-specific grip strength and endurance test, were determined in 12 male non-climbers and 40 male Lead climbers who were categorized into four groups (control, beginner, intermediate and expert). All muscular strength and endurance test were significantly associated with climbing performances (ρ=0.674 -0.747, p<0.05). Differences among the four groups were more marked in climbingspecific strength and endurance than in traditional hand grip strength. Traditional hand grip strength was significantly higher for control group than for beginner and intermediate group. Therefore it is insufficient to evaluate muscle strength of Lead climbers only by traditional hand grip strength, whereas the climbing-specific strength tests used here can be used to evaluate the muscle strength and endurance profiles of Lead climbers in relation to climbing performance.
著者
廣瀬 恒平 田中 大雄 千葉 剛 嶋崎 達也 鷲谷 浩輔 千坂 大二朗
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.32, no.2, pp.189-202, 2019-03-20 (Released:2019-09-02)
参考文献数
16

The purpose of this study was to clarify effective tactics of attack on the sport of rugby sevens using notational analysis of game performance on the menʼs rugby sevens at Olympic games 2016. The main results of this study were as follows; 1) The rate of attack to the open-side and reverse-direction are higher. 2) To breakthrough the defence-line is more difficult than the gain-line. 3) In the number of passes before contact, the rate of breakthrough the defence-line unused pass were the lowest and the rate of unused pass in the Top6 teams was lower than the bottom6 teams and therefore the attack option using pass is effective. 4) In the attack options, the rate of breakthrough the defence-line under the overlap situation is the highest and therefore the attack option to carry the ball at vacant space is effective. 5) In the starting points in attack, the rate of breakthrough the defence-line in attack from turn-over and therefore turn-over is one of the effective starting points.
著者
水島 淳 前田 奎 広瀬 健一 大山卞 圭悟 尾縣 貢
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.32, no.1, pp.71-78, 2018-10-20 (Released:2019-09-02)
参考文献数
21

The aim of this study was to investigate the coaching beliefs of foreign high-performance track and field coaches in South East Asian countries. Five foreign coaches from Germany, Portugal, and New Zealand who represented Malaysia and Singapore in track and field events at the South East Asian Games in 2017 were asked to participate and were interviewed in this study. For the purposes of this research, the factors believed most important for coaching from the coach’s perspective were asked. The results showed that the coaching beliefs of foreign high-performance track and field coaches in South East Asian countries were divided into 3 categories. These were (a) goal oriented: developing athletes’ competence and developing athletes’ character; (b) coaches’ knowledge oriented: professional knowledge, and interpersonal and intrapersonal knowledge; and (c) coaching context oriented: coaching context.
著者
植松 伸之介 井口 祐貴 楠本 繁生 下河内 洋平 大城 章 横手 健太
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.31, no.2, pp.231-237, 2018-03-20 (Released:2019-09-02)
参考文献数
18

This study investigated the occurrence frequency of accelerations (Acc), decelerations (Dec), and changes of directions (CoD) during the actual handball game and their frequency under high intensity events (HIE) circumstances, using inertial measurement units (IMU).     Participants were female handball players in Japan. 10 players (Age: 24.7±2.3 years old, height: 167.0±8.1 cm, body weight: 65.2±6.1 kg) belong to womenʼs division of Japan Handball League (upper group), 10 top-level university players (Age: 20.6±0.8 years old, height: 165.1±5.9 cm, body weight: 61.0±5.6 kg) from the division 1 of Japanese university handball league (middle group), and 8 university players (age: 20.0±0.8 years old, height: 157.9±5.8 cm, body weight: 54.3±5.5 kg) from a team belong to division 2 of the league (lower group).     As a result, the upper group displayed the highest occurrence frequency in all items, the middle group was second highest, and lower group was the lowest. The result indicates that in competition sites, it is important to implement specializing training based on the understanding of the characteristics of handball as a sport and on the scientific knowledge that we could acquire from the actual games.
著者
清水 智弘
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.35, no.2, pp.271-284, 2022-03-20 (Released:2022-05-09)
参考文献数
55

This study aimed to examine the effects of an intervention program on the coaching behaviors of a soccer coach. The experimental study employed a single-case design (AB design). The study was conducted for 19 weeks, excluding 6 weeks of interruption. The participant was a soccer coach who was in charge of teams of eighth graders or younger players. The target behaviors were participant's coaching behaviors during weekday training sessions, which included instruction and feedback used in Synchro-Coaching. We confirmed the social validity of the program through evaluation by coach development expert, measurement and evaluation of team performance, and interviews with the participant. Three out of four target behaviors improved as a result of a three-step intervention program that utilized knowledge from coaching behavior guidelines and behavioral coaching. Finally, we discussed the future issues and limitations of this study.
著者
谷川 聡 島田 一志 一川 大輔 吉岡 宏 尾縣 貢
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.24, no.2, pp.129-138, 2011-03-20 (Released:2019-09-02)
参考文献数
42

The purpose of this study was to investigate the effect of sprint technical training program on sprint and jump ability of soccer players in competition season.     The first group ( n=13, ST group) performed a combined resistance and sprint training program at same training session. The second group ( n=6, JT group) performed a combined jump and sprint training and the third group ( n=6, MT group) performed jog-walk and sprint training with technical instructions. Squat jump, Countermovement jump, Rebound drop jump, Standing long jump and 3 steps long jump were tested as jump performance. The 30-m and 80-m dash and agility run were tested as sprint performance. Sprint movement of JT and MT groups were recorded by high speed video camera.     After training, JT group performed faster significantly in the 30m dash, while MT group in 80m dash. JT and MT groups performed faster in sprint velocity with longer stride length and performed better in 3 steps long jump, while ST group performed slower in the 30m and 80m dash. We suggested that stiff leg of JT group and early leg scissors timing of the MT group made them run faster with longer stride length.     We must take into consideration difference of the effect of ST, JT and MT program based with sprint technique in competition season. It is concluded that coaches have to assess the optimal balance between soccer training and sprint training components.
著者
宗宮 悠子 寺山 由美 會田 宏
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.29, no.2, pp.169-180, 2016-03-20 (Released:2019-09-02)
参考文献数
38

The purpose of this study is to clarify the structure and coaching philosophy that leaders should have in order to further advance the talents of young dancers in Japan. In order to achieve this goal, we carried out interview surveys of 3 expert dance instructors who are active in Japan. As a result of quantitative analysis of what they said regarding coaching philosophy, the following 4 points were revealed. 1. The most exceptional dance instructors believe in the absolute necessity of shaping the “dancing body” through exhaustive and constant training. 2. They believe in instruction that promotes the dancer’s better understanding of his or her own body and the expressiveness that it can convey-in other words, the necessity of shaping the dancer’s expressive body. 3. In order to elicit the dancer’s self-confidence and proficiency, They believe it is important to instill a sense of dedication toward coming to terms with one’s own body as a dancer's body. 4. They believe that it is important to instill an awareness of the dynamic nature of dance, in other words to take the view of cultivating a frame of mind that enables the dancer to self-correct (through feedback) his or her own body and expressions in an objective fashion, thereby eliciting guidance that inspires the dancer’s dynamic performance. 5. The coaching philosophy of an outstanding dance instructors consists of four components: the formation of a body capable of dancing, the formation of a body capable of expression, the breeding of dedication, and the breeding of dynamism. It was thought that the philosophy has a structure in which all of these components are not independent of each other but instead interact, like the intermeshing cogs of gears.
著者
板谷 厚 木塚 朝博
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.25, no.1, pp.33-42, 2011-11-20 (Released:2019-09-02)
参考文献数
31
被引用文献数
2

The purpose of this study was to determine whether balance exercises on unstable support surfaces change the dependence on sensory inputs for postural control. Twenty-one healthy males were divided into two groups, Balanceboard group (B group, n=11) and G-ball group (G group, n=10). The subjects repeated 2 min of balance exercise twice with 1 min’s rest between executions. As the balance exercise, B group executed standing on a Balance-board and G group executed sitting on a G-ball. The subjects performed 60 s of quiet standing twice on a force platform with three sensory conditions; eyes open (EO), eyes closed (EC) and eyes closed on a foam (ECF) before (pre measurement) and after (post measurement) the balance exercises. In post measurement, 20 s of balance exercise was performed just before the first trial of each condition to maintain sensory adaptation. During quiet standing, the motion of the center of pressure (COP) was measured and sway velocity and sway area were calculated. To estimate the dependence on visual input, Romberg ratio (EC vs. pre-EO ratio) based on the sway velocity and the sway area was calculated. To estimate the dependence on somatosensory inputs from lower extremity based on the two sway parameters, the difference between ECF and pre-EC normalized by pre-EC was calculated as the increase in sway (IS). In B group, post-Romberg ratios were significantly higher than pre-values. By contrast, in G group, post-ISs were significantly lower than pre-values. We concluded that for postural control, the Balance-board exercise increases the dependence on visual input and that the G-ball exercise decreases the dependence on somatosensory inputs from lower extremities.
著者
Владимир Платонов
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.32, no.2, pp.145-158, 2019-03-20 (Released:2019-09-02)
参考文献数
19

本稿は,平成28年3月に開催された日本コーチング学会第27回大会(日本大学) において講演いただいたV.H.プラトーノフ氏によるものである.プラトーノフ氏は,大会テーマであった「アスリートの準備の現代的システム」の理解を深めることができるように,5本もの論文を本学会に寄稿された.これはそのうちの2本目の論文であり,「オリンピックスポーツにおける選手の多年準備構造の基礎」についてまとめたものである.     本稿の中でプラトーノフ氏は,オリンピック等の国際試合で勝利を収めることとともに,長期間にわたってその成果を維持するためには,多年にわたり計画的な準備を行う必要性があると述べている.その中でも,特にジュニア・ユース年代のトレーニングプロセスを構築する際には,十分な配慮が必要との見解を示しており,是非とも一読願いたいと考える.
著者
夏原 隆之 加藤 貴昭 中山 雅雄 浅井 武
出版者
The Japan Journal of Coaching Studies
雑誌
コーチング学研究 (ISSN:21851646)
巻号頁・発行日
vol.31, no.1, pp.1-10, 2017-10-01 (Released:2019-03-01)
参考文献数
78
被引用文献数
1

Accurately judging a situation during soccer is one of the important factors for executing superior performance. In order to acquire decision making ability, in practice and instruction sessions, it is considered desirable to adapt scientific knowledge to coaches' rules of thumb and experiences. However, it has been pointed out that practice and instructions based on scientific evidence are hardly executed. Therefore, in this review, we aimed to examine the relationship between the perceptual-cognitive skills and coaching science related to decision making for the perceptual-cognitive skill research in soccer through an overview of the research results that have been clarified so far about each factor of pattern recognition, visual search behaviors, and anticipation that constitute perceptual-cognitive skills, and the knowledge that supports them. In addition, one of the important tasks in perceptual-cognitive skill research is acquiring perceptual-cognitive skills and developing effective coaching and training methods. Therefore, from the standpoint of motor learning research, we discuss future works on perceptual-cognitive skills of soccer, while exploring the relationship between acquisition of perceptual-cognitive skills and coaching science. It is suggested that the theoretical background clarified through this review would be useful for obtaining scientific knowledge about decision making in an environment with severe temporal and spatial constraints.