pectoralis major

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.

文了正握体向上比反握体向上难做的因素,明确了做体向上动作,主要用来展胸大、背阔和肱二头的,达这些肉的肉块。