The production of lines is mainly the result of body fat reduction and local carving.

2.

First of all, we should appropriately increase the necessary aerobic exercise, while appropriately reducing the intake of fat.

3.

Secondly, if you feel that your muscle mass is large enough, you can take appropriate measures to lose weight and increase the number and frequency of each group.

4.

Increasing the number and speeding up the frequency can make your muscle lines clearer. But the frequency is accelerated, and the movements must be standard, otherwise it is easy to get hurt.