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楼主: gya666888

重拾《爬泳技术八原则》(老帖已沉没)

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发表于 2017-12-6 10:50:23 | 显示全部楼层
髋水平,打腿一定向下,短程(50,100)打腿基本都向下。
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 楼主| 发表于 2017-12-11 17:58:29 | 显示全部楼层
水皮子 发表于 2017-12-6 10:50
髋水平,打腿一定向下,短程(50,100)打腿基本都向下。

髋部处于水平的时间很短,个人认为还是应该侧打
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 楼主| 发表于 2017-12-11 17:58:49 | 显示全部楼层
髋部处于水平的时间很短,个人认为还是应该侧打
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发表于 2017-12-12 19:37:42 移动端 | 显示全部楼层
短游髋基本不转,长游转髋两次在水平位置,手臂在向后划水,刚好打两次重腿。
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 楼主| 发表于 2018-1-28 11:40:48 | 显示全部楼层
水皮子 发表于 2017-12-12 19:37
短游髋基本不转,长游转髋两次在水平位置,手臂在向后划水,刚好打两次重腿。 ...

上侧为力量源,所以划水都处于侧身,打腿应转打。
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 楼主| 发表于 2018-1-28 11:42:21 | 显示全部楼层
上侧为力量源,所以划水都处于侧身,打腿应转打。
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发表于 2018-5-31 13:55:27 | 显示全部楼层
英文应该重贴一下,从老帖那里复制来的。
A.        Keeping the body horizontal and not raising the shoulders in concert with arm entries. The body should only be rotated on a horizontal, longitudinal axis.
B.        Keeping the head down, looking at the bottom and then to the side of the pool when breathing, so that rotation on a horizontal, longitudinal axis is achieved. It is detrimental to streamlining to look forward and/or to raise the head at any time, particularly when breathing.
C.        Keeping the legs and kick within the body shadow so that form resistance is minimized. The only time the legs should emerge from the position of maximum streamline is when detrimental effects are more than offset by arm-propulsion gains.
D.        Reducing downward pressure after the arms enter the water and achieving a horizontal pull component earlier. Bending at the elbow, immediately after entry, would assist in faster directional force change. If this could be achieved, there is every likelihood that streamlining will be better maintained.
E.        Rotating the hips and shoulders together to the same degree in a streamlined position. This will reduce form resistance.
F.        Allowing the kick to rotate on a longitudinal axis in concert with hip rotation. A concentration on vertical kicking increases form resistance whereas rotation has the potential to decrease it without any loss in forward velocity.
G.        Aligning the upper arm of the pull and recovery with the line of the shoulders to increase the musculature used to generate force as well as maintain the integrity of the shoulder joint. An emphasis on, and tolerance of, internal rotator muscle group activity will eventually cause problems. This proposal will introduce a greater role for the external rotator muscles during the pull.
H.        Maintaining streamlined feet when kicking so that drag is not created. However, it must be realized that a "braking" action may be a corrective movement for some other error.
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发表于 2018-6-7 14:32:27 | 显示全部楼层
7.划水和移臂时,上臂靠近肩线既便于肌群发力,又可避免肩伤。内旋肌群负担过重将造成伤害。建议划水时尽量发挥外旋肌作用。

肩线是哪里?
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