When performed properly, most upper back exercises also work the biceps and the deltoids.

动作规范的话, 大部分的背部训练也能作用于二头肌和三角肌.

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Train pectorals, Triceps, Frontal deltoids. Develop upper body, improve body shape.

练习胸大肌, 肱三头肌, 三角肌前部. 发展上肢肌肉, 改善形体.

期刊摘选