Analysis of walkout movement and factors affecting competitive ability in artistic swimming

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  • アーティスティックスイミングにおけるウォークアウトの動作解析と動作の質に影響する身体的因子の分析
  • アーティスティックスイミング ニ オケル ウォークアウト ノ ドウサ カイセキ ト ドウサ ノ シツ ニ エイキョウ スル シンタイテキ インシ ノ ブンセキ

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Abstract

J-GLOBAL ID : 201601009234750179

In artistic swimming (AS) competitions, a movement called walkout is often instructed to extend the lower limbs backward and forward and move the legs greatly; however， there are few swimmers who successfully perform this extension while feeling own muscle activities. In this study， we used three-dimensional motion devices and electromyograms to clarify the muscles that are responsible for lower limb elongation required for walkout and how the muscle activity affects movement. Four international competition-level AS athletes and five domestic competition-level AS athletes were recruited. Three types of walkout (usual extension, extra extension, maximum awareness of gluteal contraction) were conducted; the open leg angle, vertex height, and integrated electromyogram were analyzed. As a result, the open leg angles were 164.78±6.77°for usual extension and 160.49±8.82°for maximum awareness of gluteal contraction, and this result showed a significant difference (p<0.05). There was also a strong negative correlation between the open leg angle and the amount of muscle activity of the lower gluteus maximus.

1520011240762475008

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