biceps brachii

The article explains the morphology factor of chinning in combined grip. It points out that chinning movement can well-developed muscles such as pectoralis major, latissimus dorsi and biceps brachii.

文章阐握体向上比反握体向上难做因素,明确做体向上动作,主要用来发展胸大、背阔和肱二头力,发达这些肉肉块。