著者

吉野 昌恵 井上 なぎさ 吉﨑 貴大 石橋 彩 近藤 衣美 元永 恵子 上東 悦子 蒲原 一之 亀井 明子

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

Journal of High Performance Sport (ISSN:24347299)

巻号頁・発行日

vol.6, pp.62-73, 2020 (Released:2020-10-10)

参考文献数

12

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Japan Institute of Sports Sciences routinely publishes information about supplements for athletes on its website. This information needs to be regularly updated based on athletes’ needs, the International Olympic Committee Consensus Statement, various health hazard reports, and evidence of performance-enhancing effects of supplements used by athletes. We investigated supplement use among 682 Japanese elite athletes who participated in the 2016 Rio de Janeiro Olympic Games. Supplement use was investigated based on a self-reported medical health questionnaire. We observed that 631 (92.5%) athletes used ≧1 supplements within the year prior to study enrollment. Amino acids were the most popular supplements consumed by 58.8% of athletes who admitted to supplement use. Recovery from fatigue was the most popular reason cited for supplement use. Among the athletes who used supplements, 57.4% received information regarding supplement use from their coaches, managers, and trainers, and 16.3% received information from healthcare professionals (i.e., physicians, pharmacists, and dietitians). Some athletes were unaware of the types of supplements that they used. A few athletes reported using supplements only because these products were being used by their teammates and admitted that their consumption of supplements was not meant for any particular purpose. This finding indicates that some athletes did not consider the necessity for and effects of supplements before using them. Therefore, athletes should have access to appropriate information regarding supplement use, including the rationale that justifies their consumption, as well as their effectiveness and safety to ensure judicious use of supplements in this population.

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

田中 紀子 高橋 歩 吉野 昌恵

出版者

神戸女子大学

雑誌

神戸女子大学家政学部紀要 (ISSN:13415905)

巻号頁・発行日

vol.41, pp.1-5, 2008-03