The body circumference standard of bodybuilding is as follows: based on the chest circumference, if the chest circumference is 100 cm, then:

1, the upper arm circumference is 36% of the chest circumference, that is, 36 cm.

2. The forearm circumference is 30% of the bust, which is 30 cm.

3, the waist circumference is 75% of the bust, which is 75 cm.

Hip circumference is 90% of chest circumference, which is 90 cm.

5, the thigh circumference is 60% of the hip circumference, that is, 54 cm.

6. The calf circumference is 40% of the hip circumference, that is, 36 cm.

7. The neck circumference is 38% of the chest circumference, that is, 38 cm. ?

Arm circumference training method

Doing this action can greatly increase the training load and increase the training weight. When the training load of triceps brachii increases, the muscle stimulation of triceps brachii will become stronger, which will make triceps brachii have better training effect and then increase the arm circumference.

When doing this training action, we should pay attention to the full contraction and full extension of the triceps brachii, that is, to increase the range of action, so as to stimulate the long head of the triceps brachii more effectively.