著者

大野 政人 黒川 貞生 森田 恭光

出版者

明治学院大学教養教育センター

雑誌

明治学院大学教養教育センター紀要 : カルチュール = The MGU journal of liberal arts studies : Karuchuru (ISSN:18818099)

巻号頁・発行日

vol.2, no.1, pp.37-42, 2008-03-31

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Many people have experienced muscle cramps during sports activity. It has been suggested that muscle fatigue, dehydration, and electrolyte imbalance are potential factors of cramp. Stretching of affected muscles, intake of water and electrolytes are well-known preventions for cramp. However, few studies have experimentally investigated the effects of these factors and preventions on cramp. We reported that dehydration by repeated exposures to sauna increased cramp of the hamstrings which were not fatigued. Another study showed that increase in daily intake of water and salt reduced cramp during a tennis match. Thus, it is possible that fluid and sodium intake is effective for prevening cramp during exercise in some people.

著者

弘 卓三 石井 哲次 冨岡 徹 森田 恭光 山本 鉄雄

出版者

日本体力医学会

雑誌

体力科學 (ISSN:0039906X)

巻号頁・発行日

vol.46, no.5, pp.445-451, 1997-10-01

参考文献数

28

被引用文献数

1

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We have developed a mouth guard which has revolutionized the shape and material of the conventional mouth piece. The H shape mouth guard has the unique shape like that of an H. Even with the new shape of the mouth piece it does not hinder the performance of the wearer. The following are the fundamental data collected by our group. In this study we examined its influences on leg power, the carry(the distance a golf ball is hit)and the motion of the club head during a tee off. The results are as follows : 1) By wearing or setting the mouth guard, the variation of leg power, measured with a Sybex II, showed an increase at selected angular verocity. The rate of increase averaged aproximately 15%. 2) The amount of work in anaerodush, an intensive, but short exercise, increased significantly by 1.25 seconds. 3) As for golf, all four of the test subjects joint performance increased their carries by 5.2 to 11.6 yards, using a 1 st wood. 4) Also the fluctuation of the head of the club decreased from 7.3 cm to 3.6 cm on average. Our group have found that the new H shaped mouth guard can absorb shock as well as not hinder the performance of the individual who is wearing it. Thus, the H shape mouth guard can be worn durinlg sports to enhance the participant's performance.

著者

森田 恭光 樫村 修生 薗部 正人 南 和広 柏木 朋也 星 秋夫

出版者

日本スポーツ健康科学学会

雑誌

日本スポーツ健康科学誌 = Japanese journal of sport and health sciences (ISSN:24325864)

巻号頁・発行日

vol.5, no.1, pp.35-42, 2018-08