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.

文阐述了正握引体向上比反握引体向上难做的素,明确了做引体向上动作,主要用来发展胸大、和肱二头的力,发达这些肉的肉块。