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双杠臂屈伸多少个合格
更新时间： 2020-10-31 00:00:00  

双杠臂屈伸做5个算合格，做20个以上算满分。双杠臂屈伸以练习胸肌、肱三头肌和三角肌（前束）为主，兼练背阔肌、斜方肌等。需要的器材为双杠最佳。初始练习者力量不佳，可选择长凳、床等生活家具，采取同样动作进行（因脚踩地可减低体重负荷）。

动作的一般过程为：双手分别握杠，两臂支撑在双杠上，头正挺胸顶肩，躯干、上肢与双杠垂直，屈膝后小腿交叠于两脚的踝关节部位。肘关节慢慢弯屈，同时肩关节伸屈，使身体逐渐下降至最低位置。稍停片刻，两臂用力撑起至还原。

关键词： 双杠 屈伸 多少 合格

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