File was renamed from src/books/sportsAndHealth/view/testPp.vue |
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| | | <p class="bj1-tyzg">体育中国</p> |
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| | | 乒乓球核心技术的支撑动作规格是前臂带动手腕内旋90°,形成一个与端线平行的平面,用于反手支撑技术;前臂带动手腕外展90°,形成一个与端线平行的平面,用于正手支撑技术。乒乓球核心技术的卷带动作是在完成对反手球进行支撑的基础上,前臂带动手腕由内旋变为外展,完成反手击球动作;在完成对正手球进行支撑的基础上,前臂带动手腕由外展变为内旋,完成反手击球动作;击球点在身体的侧前方,发力阶段在卷带期。 |
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| | | <p class="img">图3-5-1 直板握拍和横板握拍</p> |
| | | <p>(2)学练建议</p> |
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| | | ④拓展练习:通过不断增加推挡的次数巩固技术,实现从量变到质变的目标。 |
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| | | ③快搓:挥拍手由前臂带动手腕内旋90°形成支撑动作,在击球的过程中向侧下方挥拍,手腕由内旋变成外展90°完成卷带动作。 |
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| | | <p>4.配合重心的转移和脚步的移动保持击球点在身体的侧前方。</p> |
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| | | 击球前,左脚稍前站立,身体离台50~60厘米;以右手为例,引拍向右后方,球拍与来球同高或稍低于来球;在球的上升期或高点期击球的中上部,击球的瞬间,应将向前的撞击与摩擦球动作融为一体;在球的上升期和高点期击球,同时迅速还原。 |
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| | | 正手发左侧上(下)旋球时,左脚在前,右脚在后,身体侧向球台,身体重心下降。左手将球向上抛起,同时右臂向右后上方引拍,握拍手腕外展,腰部略向右转动。当球下降至接近网高时,前臂加速向左前方挥摆,触球时手臂、手腕发力,直握拍手腕内旋,横握拍手腕内收,腰部配合向左转。发侧上旋球时,拍面略微立起,击球的中部向左侧上方摩擦;发侧下旋球时,拍面略后仰,击球的中下部向左侧下方向摩擦。随势挥拍,迅速还原。 |
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| | | data() { |
| | | return { |
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| | | pingpang: require("../image/pdf.png"), |
| | | pingpang: require("../../image/pdf.png"), |
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