Whether a person's abdominal muscles are clear and full depends on two aspects: body fat rate and the dimension of abdominal muscles themselves. Many boxers we are familiar with are very fit and have smooth muscle lines because people want to lose weight! Not losing excess fat means upgrading the game and facing higher and heavier opponents with longer arms span and greater strength. Therefore, we can see that the lightweight and middleweight players in fighting competitions are generally in good shape with angular muscles; On a large scale, when the need to lose weight is not so great, the player's abdominal muscles begin to be submerged by his stomach, and even some "cute things" will appear. ...

On the other hand, as a part of the core strength source, abdominal muscles play an irreplaceable role in fighting, other sports and even life. I have read some studies, and half of the impact of straight boxing in modern boxing comes from lower limb muscles such as gastrocnemius and quadriceps femoris (of course, it also depends on the level of exercise). How is the strength of the leg transmitted to the fist? Of course, it is transmitted through the core muscles of the trunk. In fact, not only the straight fist, but almost all fighting movements, such as kicking, wrestling and even jujitsu, have extremely high requirements for the core strength. Otherwise, do you think those athletes do belly rolls and swing sledgehammers every day just to look good? Boxers don't need low body fat, so it seems that the abdominal muscles are not clear. As long as they want to lose weight and fat, the shape and latitude of abdominal muscles are good. As mentioned above, "Boxers don't have six-pack abs" is a fallacy, and core strength is crucial. Abdominal muscles never show off