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四会教学法——健身动作教案之(杠铃深蹲)

  • 2026-11-08 02:16:08
四会教学法——健身动作教案之(杠铃深蹲)
课目:杠铃深蹲
对象:想要练好下肢人群
目的:使参训人员掌握杠铃深蹲动作要领,规范发力模式,强化下肢核心力量,规避运动损伤
一、讲解示范

(一)动作讲解

杠铃深蹲是王牌复合动作,锻炼股四头肌、臀大肌、腘绳肌,同时强核心、脊柱稳定能力。

1. 预备姿势
杠铃扛于上背斜方肌中下部(高杠深蹲),不要压颈椎。双手抓握杠铃,手肘向下沉;双脚与肩同宽或略宽,脚尖轻微外展15°~30°。收紧核心、收腹挺胸,肩胛骨收紧锁死,腰背全程保持刚性。


2. 下蹲阶段
吸气憋住腹压,髋部向后向下先启动,膝盖顺着脚尖方向同步向前打开,髋膝同步弯曲;持续下蹲,直到大腿上沿平行地面(如图中低位姿态),全程保持脊柱中立,不弯腰、不弓背,重心落在足中。
看图片:下蹲到底,背部平直,髋低于膝,重心稳定。
3. 站起阶段
足底蹬地发力,脚后跟踩实地面,髋膝同时伸展,匀速向上站起,呼气;站起至双腿完全伸直,但不要锁死膝关节。如图,发力站起,躯干保持稳定。


(二)观察动作

正面、侧面、背面观察到位(本次图片为斜背面视角),完整角度可看我的视频,再分解徒手打磨预备、下蹲、站起三个分段动作。

二、练习

1. 徒手模仿练习:无杠铃,反复练习髋后坐、下蹲站起,体会腰背刚性,纠正弯腰、膝盖内扣。

2. 空杆练习:杠铃不加重量,体会杠铃在背部的支撑感,找准重心,规范动作框架。

3. 轻负荷分解练习:小重量分组,停顿在低位2秒,感受髋膝联动,控制动作节奏。

4. 完整负重练习:逐步加重量,每组3~5次,动作质量优先于重量。

三、检查纠正(常见错误)

1. 弓背弯腰:核心没收紧,腹压不足。纠正:吸气预收紧,想象有人要推你的后背,全程保持背部一条直线。

2. 膝盖内扣:下蹲时膝盖往中间挤。纠正:下蹲时膝盖向外撑开,对齐脚尖方向。

3. 重心前移、脚跟抬起:踝关节灵活不足,或者髋没有向后坐。纠正:刻意向后坐髋,全程脚跟踩实地面。

4. 下蹲深度不够:只蹲一半。纠正:逐步加深幅度,大腿至少平行地面。

四、安全提示‼️

1. 必须使用深蹲架,安全杠调到合适高度,一旦力竭可以直接把杠铃落在安全托上。

2. 重量递增循序渐进,动作变形立刻停止,不盲目冲重量。

3. 腰部有旧伤、膝盖不适,降低负重,优先保证动作标准。

总结:深蹲练的不只是腿,更是定力与核心控制力。每一次蹲下去,是积蓄力量;稳稳站起来,是扛起责任。力量训练,先稳框架,再谈负重,稳得住身体,才能扛住压力。
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