水泳水中運動科学
Online ISSN : 1880-7097
Print ISSN : 1880-6937
ISSN-L : 1880-6937
16 巻, 1 号
選択された号の論文の8件中1~8を表示しています
実践研究
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原著論文
  • 竹島 良憲
    2013 年 16 巻 1 号 p. 31-39
    発行日: 2013年
    公開日: 2013/10/01
    ジャーナル フリー
    Kicking like a propeller in breaststroke is nowadays widely used by breaststrokers. Maglischo5) explains that a breaststroker kicks until legs are stretched straightly to generate thrust, drawing a semicircle with both legs like a propeller. It is said that the breaststroke kick like the propeller is supposed to generate big thrust. But in the process of this study, the calculation result of propeller-like kick thrust revealed that enough thrust does not occur in the usual propeller theory. It seems that the application of Dynamic Stall is to be supposed to generate enough thrust to apply the second law of Newton. The purpose of this study is to obtain the method for the analysis of this big thrust using Dynamic Stall.
  • 府内 勇希, 北川 薫
    2013 年 16 巻 1 号 p. 40-46
    発行日: 2013年
    公開日: 2014/01/20
    ジャーナル フリー
    The purpose of this study was to find out the physiological response difference of long-distance (LDS) and sprint swimmers (SPS) to intermittent swimming test at critical swimming velocity (CV) in swimming flume. First, twelve trained swimmers (LDS, n=6; SPS, n=6) swam at five swimming speeds with maximal effort to determine the CV. Then, ventilation (VE), oxygen consumption (VO2), heart rate (HR), blood lactate concentration (BLa), respiratory exchange ratio (R) and relative oxygen consumption (%VO2max) were examined during intermittent swimming test at CV. For the LDS, only HR increased significantly during intermittent swimming test. For the SPS, significant increases in VE, VO2, HR, and %VO2max were observed. In the comparison between the two groups, VE, VO2, HR, BLa and R were significantly higher in the LDS at all repetitions. Thus, intermittent swimming at CV induces constant physiological intensity in the LDS and gradually increases physiological intensity in the SPS, and there were clear differences in physiological responses between LDS and SPS.
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