背部的上斜方肌和肩膀前侧的前三角肌上提手臂。
The upper trapezius in the back and the anterior deltoids at the front of the shoulders lift the arms.
三角肌（位于肩膀前侧）上提手臂。
The anterior deltoids over the front of the shoulder lift the arms.
试验记录胸锁乳突肌两端、前斜三角肌、颈伸肌及上斜方肌的表层肌电活动度。
Surface electromyographic activity was recorded bilaterally from the sternocleidomastoid, anterior scalene (AS), cervical extensor (CE) and UT muscles.
结果：在后手直拳击打过程中上肢肌肉中三角肌前束做功百分比最高，平均为35%；
Results:Detoid anterior portion worked with an average of 35% in the process of straight punches in the upper extremity muscles;
结果：在后手直拳击打过程中上肢肌肉中三角肌前束做功百分比最高，平均为35%；
Results:Detoid anterior portion worked with an average of 35% in the process of straight punches in the upper extremity muscles;
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