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第八十一章 教学游泳(2 / 2)

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走了几步后,朱静玉已摆脱忸怩,这里不就只有随心哥哥是男的吗?她没了忌讳,看着清澈的一河碧水,高兴地挥手叫道:“随心哥哥,快来接我呀!”十足的小女孩『性』格呢!青心和静波也被她感染了,跟着她在石头上蹦蹦跳跳奔向水边。

随心赶紧半游半浮地划向岸边,这游泳,下水前必要的准备活动是不能少的,要让她们活动开,这是游泳常识:

下水前要做必要的准备活动,如做体『操』,可以改善身体各器官系统的状态,提高神经系统的兴奋『性』和灵活『性』。做了准备活动以后,心脏和呼吸器官的活动加强,血『液』循环和物质代谢的过程加快,肌肉的力量和弹『性』增加,关节活动范围加大,灵活『性』提高。体内的这些变化,有利于身体更快地适应游泳活动时的需要。同时对预防肌肉抽筋和拉伤有一定的作用。

如果没有做准备活动就进入水里,就可能出现头晕、恶心和心慌等不适感觉,或发生肌肉痉挛和拉伤。

准备活动的内容和运动量,随不同的游泳姿势而不同。但基本要求必须是使身体各部肌肉、关节活动开,尤其是游泳中负担较重的部位,如蛙泳的下肢,膝关节,自由泳的上肢、肩关节等等。一般可做几节广播『操』或跑步、跳跃等活动,还可以做些划臂、踢腿等动作,活动活动颈、肩、腰、髋、膝和腕等关节部位。

本小章还未完,请点击下一页继续阅读后面精彩内容!除身体活动以外,在下水时,还应该先用水擦擦面部、背部、胸部和大腿,使身体对冷水的刺激逐渐适应以后,再进入水中。

随心回到岸边,静玉三人正好也到了。随心笑道:“静玉,你们先别急着下水,要先做好准备活动,在水里才不会发生一些麻烦事。比如肌肉抽筋和拉伤,或者头晕、恶心和心慌等不适感觉。现在空气温度高,水里面温度低,更要做好准备活动。”

随心对旁边也同样跃跃欲试的薛晓琳、朱静枝几人道:“你们也一样,等会要游泳,也得先做这些准备活动。”

随心把经验加道理讲了一通,众女听了,纷纷娇笑点头,表示明白,可眼神都在不由自主地打量着随心,随心的身材结实匀称,一身肌肤细腻嫩白,吸引她们眼光。

杨扬在一边听了,也直点头,认为很有科学道理,但随后便发现儿子对别人说的是一套,自己做的则是另一套,就笑问儿子道:“随心,你说的很有道理,那你刚才没做准备活动就下水了,出了问题怎么办?”

随心还真没想过妈妈会将自己一军,一时搪塞了。

众女看着随心的样子,都嘻嘻笑起来。

随心尴尬道:“一般来说,直接下水游泳肯定是不好的。但我与别人确实有些不同,我身体素质好,不会出现肌肉抽筋和拉伤的情况,退一步讲,就算有状况,我在水里能憋气,也不会慌张,所以就免了。但是静玉你们,可别怪我马列主义对人,自由主义对已,你们游泳前一定得做准备活动,特别要注意先用水擦湿面部、背部、胸部和大腿,使身体对冷水的刺激有个适应过程,然后才能正式游泳。”

随心的话让大家笑起来,算是接受了他的解释。

随后,随心就学老师赵国轩教的方法,喊着口令带青心和静波、静玉姐俩做了几节广播『操』和原地跑步、跳跃等几个动作,让她们放松全身颈、肩、腰、髋、膝和腕等关节部位。随心身体柔韧度好,带的动作夸张、幅度夸大,让众女乐个不停。

杨扬看的莞尔,觉得儿子变开朗后,有点判若两人,难怪静枝这丫头认定了他!

静玉三女嘻笑着跟着随心张扬地做着熟悉的动作,很好地完成了准备活动。果然寓教于乐能起到事半功倍的作用。

随心将三女带到水边,示范着用水擦湿面部、背部、胸部和大腿,当她们全都照做后,随心不经意间,见她们都有了明显的曲线,噢!有女初长成。

喜欢重生之一路随心请大家收藏:重生之一路随心本站更新速度全网最快。

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