Want to have a perfect arm line needs to have several basic conditions: First, the sebum thickness is appropriate. No matter how developed your muscles are, if the subcutaneous fat is high, your muscles will be hidden under the sebum, and the arm lines will be difficult to show, giving people a bloated feeling. Under normal circumstances, the percentage of body fat of women is higher than that of men. Therefore, it is unrealistic for women to pursue low body fat content, and the appropriate sebum thickness is conducive to showing bodybuilding arm lines.

Secondly, the muscle shape of the arm is very important. Correct strength exercises can increase muscle volume, and reasonable traction can make the muscles with increased volume have perfect lines. The surface muscles of the arm mainly include biceps brachii and triceps brachii. For biceps brachii, you can choose some actions to flex your forearm; For triceps brachii, you can choose some elbow extension actions. These two groups of movements are 20 ~ 30 groups, 3 ~ 5 groups, and the interval between groups is 1.5 ~ 2 minutes, once every other day.

It is worth noting that the fat on the back of the arm, that is, the triceps brachii, is difficult to lose, so patience and exercise are needed.