著者

松本 なぎさ 吉﨑 貴大 亀井 明子 上東 悦子 土肥 美智子 赤間 高雄 川原 貴

出版者

独立行政法人 日本スポーツ振興センター国立スポーツ科学センター

雑誌

Sports Science in Elite Athlete Support (ISSN:24322091)

巻号頁・発行日

vol.1, pp.15-27, 2016 (Released:2019-02-15)

参考文献数

22

被引用文献数

1

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The aim of this study was to compare the following aspects between junior- and senior-generation athletes to obtain basic data for future nutritional support activities for athletes, such as education on supplements and nutrition: the awareness of anti-doping; the type of supplements used; the frequency, purpose, and effects of use; the sources of information and access; and the inclination to buy. Although no association was found between dietary consciousness and generation, the awareness of anti-doping was lower in junior athletes. Differences between the two generations were also noted in the type of supplements used, the frequency and subjective effects of use, the source of information and access, and the inclination to buy. Therefore, generation-suited approaches should be considered for the education of elite athletes on supplements and nutrition.

著者

長坂 聡子 橋本 秀紀 坂本 静男 田口 素子

出版者

独立行政法人 日本スポーツ振興センター国立スポーツ科学センター

雑誌

Sports Science in Elite Athlete Support (ISSN:24322091)

巻号頁・発行日

vol.1, pp.45-54, 2016 (Released:2019-02-15)

参考文献数

20

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The purpose of this study was to investigate the effects of postexercise carbonated high-carbohydrate beverage (Carbonated Trial: CT) compared with non-carbonated high-carbohydrate beverage (Non-Carbonated Trial: NCT) on gastrointestinal (GI) problems and physiological indexes during 4 hours of recovery period in athletes. Eight Japanese collegiate athletes (age : 21±1yr ; height : 170.8±6.0cm ; body weight(BW) : 68.70±8.29kg ; percent body fat : 11.7±2.7%) participated in the cross-over designed study. Immediately after the exhaustive exercise, subjects consumed 3.5ml/kg BW of 1) water, 2) high-carbohydrate beverage : NCT (1.8gCHO/kg BW/h), and 3) carbonated high-carbohydrate beverage : CT (1.8gCHO/kg BW/h) every 30 min during 4 hours of recovery period. No difference was observed in blood concentration of glucose, insulin, free fatty acid, and subjective GI problems between CT and NCT. However the rate of vomiting was significantly higher in the NCT compared with CT (p < 0.05). These results suggest that ingesting carbonated beverage during recovery period may help digestion and absorption in the stomach of athletes.

著者

飯塚 太郎 平野 加奈子 烏賀陽 真未子

出版者

独立行政法人 日本スポーツ振興センター国立スポーツ科学センター

雑誌

Sports Science in Elite Athlete Support (ISSN:24322091)

巻号頁・発行日

vol.2, pp.21-29, 2017 (Released:2019-02-15)

参考文献数

12

被引用文献数

1

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In 2006, the Badminton World Federation (BWF) changed the scoring system in badminton to a 21 points × 3 games rally-point scoring system, intending to shorten the duration of matches. However, as the match duration in recent international tournaments is once again increasing, BWF is considering making further changes to the scoring system. In this paper, we examine the changes in match duration in international tournaments since the new scoring system was implemented in 2006. This analysis was performed by comparing the duration of matches from twelve Superseries tournaments during the 2008 Beijing Olympic Games qualification period and the 2016 Rio de Janeiro Olympic Games qualification period. As a result, it was found that the durations of the matches for the Superseries tournaments during the latter period had significantly increased from the former period. A further analysis was conducted to compare match characteristics between the Japan Open Superseries in 2007 and 2015, held during the Beijing and Rio de Janeiro Olympic Games qualification periods, respectively. It was shown that rally time in men’s and women’s singles events and rest time in all events were significantly longer in Japan Open 2015 as compared to 2007. Therefore, it is suggested that the increase in rest time as well as rally time were associated with longer duration of matches in Superseries tournaments during the Rio de Janeiro Olympic Games qualification period.

著者

衣笠 泰介 藤原 昌 和久 貴洋 Gulbin Jason

出版者

独立行政法人 日本スポーツ振興センター国立スポーツ科学センター

雑誌

Sports Science in Elite Athlete Support (ISSN:24322091)

巻号頁・発行日

vol.3, pp.15-26, 2018 (Released:2019-02-15)

参考文献数

25

被引用文献数

3

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Talent identification & development (TID) has been positioned as an important measure of sport policy from the viewpoint of high performance sport. TID at the national level has been evolving in various countries including United Kingdom (UK) and Australia. Japan Sport Council (JSC) currently supports three TID models throughout the entire country: multi-sports, target sports, and transfer sports. A local TID (LTID) project on the multi-sports model was first introduced in Fukuoka prefecture in 2004. After 13 years, the LTID project has been expanded to 26 prefectures. The Japanese National TID (NTID) programme was strategically implemented by JSC in 2012 as a new national project. NTID provides opportunities and choices toward talented local athletes to create various Olympic and Paralympic pathways for potential medallists. Many countries establishing sustainable athlete development pathways highlight the need to continue being innovative and evidence-based in the approach to ensure that Japan stays at the front of this rapidly evolving field in high performance sport.

著者

平野 加奈子 飯塚 太郎 烏賀陽 真未子

出版者

独立行政法人 日本スポーツ振興センター国立スポーツ科学センター

雑誌

Sports Science in Elite Athlete Support (ISSN:24322091)

巻号頁・発行日

vol.2, pp.1-9, 2017 (Released:2019-02-15)

参考文献数

4

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This paper describes the support using match videos that was provided for the Japanese national badminton team in preparation for the 2016 Rio de Janeiro Olympic Games. In order to help coaches and players effectively strategize for their matches, we provided them with match videos and match analysis data. The purpose of the match analysis was categorized as follows: (1) to define the play tendencies of opponents, and (2) to evaluate the performances of Japanese players for further training. Additionally, match videos were provided to the coaches and players through video streaming technology so that they could easily access them anytime. We suggest that these support assisted the coaches and players in preparing for their matches, especially in the decision-making process of formulating strategies.

著者

吉野 昌恵 袴田 智子 元永 恵子 石毛 勇介

出版者

独立行政法人 日本スポーツ振興センター国立スポーツ科学センター

雑誌

Sports Science in Elite Athlete Support (ISSN:24322091)

巻号頁・発行日

vol.3, pp.79-92, 2018

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This paper reports the efforts undertaken to provide nutritional support for the Japanese National Paralympic Alpine Ski Team from the 2015/2016 season to the Pyeongchang 2018 Paralympic Winter Games. According to the team coaches, increased fatigue and reduced performance was observed around the end of a season. They attributed this to deficient fluid intake during training sessions and deficient food intake after exercise. At first, we examined the dehydration status and body mass variation of the athletes during the 2015/2016 season. Dehydration is usually detected by measuring the subject's body weight both before and after exercise, but body weight measurement during ski training may be difficult for paralympic alpine skiers. We tried to assess the hydration status of the athletes by measuring urine specific gravity (USG) on the first morning and checked urine color using a color chart as well as measured the body weight. Both parameters were monitored for 7days in the early 2015/2016 season. Some athletes had high USG (≥1.030), and showed body weight loss during the examination. We were concerned about dehydration on the first morning and body weight loss during the long season. Preventing dehydration and maintaining body weight during the season was crucial for the team. However, drinking large volumes of water on snow is difficult. Therefore, we encouraged fluid intake after a training session or competition so that they could be rehydrated by the next morning. Furthermore, consuming a snack (for example, bread, banana, and energy bar) after exercise would help in preventing energy deficiency, even if the athlete missed a meal. Additionally, we encouraged the athletes to regularly self monitor their body weight and urine color until the 2017/2018 season. With the establishment of these routines in the team, the athletes were able to maintain body weight and prevented dehydration.

著者

藤原 昌 衣笠 泰介 久木留 毅

出版者

独立行政法人 日本スポーツ振興センター国立スポーツ科学センター

雑誌

Sports Science in Elite Athlete Support (ISSN:24322091)

巻号頁・発行日

vol.3, pp.53-68, 2018 (Released:2019-02-15)

参考文献数

63

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Establishment of the Athlete Development System (ADS) has been positioned as an important effort of the success in high performance sport. The review paper summarized the initiatives of the gov-ernments and national sport organizations to establish the ADS after the Tokyo 1964 Olympic Games. Also, we analyzed the current situation of the ADS in Japan. As a result, the definition of the ADS has changed from explaining a direct relationship between training volume/intensity and performance to taking a systematic approach incorporating many factors related to the ADS. Since 2010, each na-tional sport organization has formulated a medium to long-term strategic plan. However, we need to reaffirm that the current strategic plan is focusing on the final stage of achieving medals at major competitions. We suggest that the quality and effectiveness of each of sport organization is positioned as an important effort of the success in high performance sport. The review paper summarized the initiatives of governments and sport organizations’ youth programs, which are the foundation for the success at the senior level. If the national sport organizations were not able to improve their athlete development pathway program, it would not lead to the sustainable ADS in the near future. Therefore, looking ahead to 2020 and beyond, each sport organization needs to establish a unique Japanese athlete development framework by considering the background of Japanese society.