Many athletes find that their left and right chests are asymmetrical after working out for a period of time. The left chest is larger than the right chest (left-handers may be the opposite) and this change will increase over time. Then What caused this asymmetry?
The reason for the left and right chest asymmetry
There is no one in fact. Muscles are completely symmetrical, so don't worry about asymmetry that is not obvious. The reason for the obvious asymmetry after exercise may be:
1. Whether the movement is in position and whether the left and right sides are symmetrical
Whether the fitness effect depends on whether the movement is in place, and is asymmetry. If the action is not in place, the asymmetry determines your way of exerting force and determines the stimulation amplitude of your target muscle group. If you use your arms too much in the process of pushing your chest, then there may be a problem with your posture and Xiaobai's right and left arm strength is very different when he first started to exercise (the students who often play basketball feel it very much). It will inevitably cause an imbalance in the left and right force, and the chest shape will become asymmetric over time.
[Suggestion] When Xiaobai starts to get involved in fitness, don't pursue heavy weights. Use movements as the standard, proper, and symmetrical primary goal. Otherwise, blindly pursuing heavy weight will get twice the result with half the effort.
2. Did not use target muscle exhaustion as the standard for completion of the action
When exercising, the target muscle group will continue to complete the exercise when the target muscle group is exhausted. In fact, your target muscle group is exhausted at this time, but you can still complete the action. On the surface, it looks like you have completed the action, but in fact, when your target muscle group is exhausted, you will use other muscles to complete the action.
For example, bench press, when you are exhausted in the chest, you will use the strength of your arm to push it up. However, the strength of the arms on both sides of the arms of most people who are just starting to work out is different. This will cause the shape of the sides of the body to be different over time, and it will also have a bad effect on the body shape.
【Suggestion】When your target muscle group is exhausted, you should stop completing the action. Otherwise, passive physical borrowing will make your torso unstable and not well supported.
3. Habits in life
due to inconsistent strength between the arms and the pectoralis major For most people, because they are right-handed in their daily life, they have more opportunities to be "worked" on the right side of the right arm and chest before they enter the gym. Therefore, the right side has significantly more power than the left side.
After the exercise begins, when the pectoralis major is exercised on the bench press, the arms on both sides increase the load of the same weight, and the weaker left side is often the first to reach the limit state and the first to exhaustion. In this way, the stimulation of the pectoralis major muscle on the left will be deeper and the muscle gain will be faster. In this way, the left side of the pectoralis major muscle will be more developed than the right side after the same exercise.
The above analysis is based on most right-handed people. If it is left-handed, the situation is just the opposite. In short, there will be a "strange" phenomenon that is on the weaker side, the same exercise pectoralis major looks more developed. In addition, the apparent degree of left-right asymmetry depends on the size of the difference in power on both sides.
【Suggestion】Try to do something with your non-habitual hands in your life. For example, right-handed people can brush their teeth with their left hand, and left-handed people can write with their right hand.
4. Structural issues
Structural problems can cause imbalance in left and right forms by affecting functions. Such as high and low shoulders, scoliosis, and pelvic irregularities. If so, it is recommended to start with correcting the shape.
[Recommendation] It is recommended to find a professional rehabilitation practitioner to correct the posture. A normal posture is the basis of fitness. It is just like the foundation of a building, and the building will be stable only if the foundation is well done.
