When do muscle fibers (muscles, tendons, ligaments) rupture? What are the causes of muscle and joint pain that bothers you?

Muscle fibers are destroyed by external and internal shocks. Destruction by free radical is an internal shock. Removing free radical can prevent destruction by internal shock. This is called the free radical revolution.

Free radical revolution: Definition of muscle fibers

In our body, the part called'flesh' is mainly composed of'① skin, ② subcutaneous fat, and ③ muscle fibers (muscles, tendons, ligaments). In today’s post, I’m going to look at [muscle fibers].

What is a muscle fiber

It is a fibrous unit structure that makes up the muscle or muscle tissue of an animal. Its nature is a cell (myocyte) to a polynuclear body. In general, mononuclear ones (smooth muscle, myocardium, etc.) and multinuclear ones (skeletal muscle) also have a thin and long shape. In the cytoplasm, that is, the muscle trait, there are many very fine fibrous structures in which the fibers run parallel to the longitudinal direction, that is, the contractile direction. It is classified according to the presence or absence of medium refractive rhabdomyotes on this myofibril. These are the rhabdomyocytic and smooth muscle fibers. Rhabdomyolysis fibers generally contract rapidly, but are prone to fatigue. Smooth muscle fibers contract slowly but can continue to work.

Can be defined as.

Free radical revolution: The theory of <extreme exercise → muscle fiber rupture>

You probably know that muscle fibers rupture when you exercise. Because I know it from experience. “I exercised a lot, and then I put a lot of effort into the area where I used it, and it ruptured.” So this is the reasoning. “Muscle fiber rupture and exercise will be closely related.”

In other words, if there are no other variables, the theory of <radical exercise → muscle fiber rupture> can be established.

<If there are no other variables, the theory of (radical exercise → muscle fiber rupture) is established.>

This is a theory that has always been common sense. 

Now things have changed. This is because'another variable' called free radical was discovered. If so, the necessity to reexamine the theory of <radical exercise → muscle fiber rupture> has emerged. 

External pressure is the only cause that destroys muscle fibers <immediately>

​

First, let's find out the characteristics of the muscle fibers. Muscle fibers are tissues that move our body through contraction and relaxation, and are very elastic and the strongest tissue after bones. Can the intact, intact muscle fibers rupture <immediately> like swinging a badminton racket or throwing a baseball ball?

In conclusion, muscle fibers in intact condition are ruptured <immediately> only by ‘external pressure’ in a car accident. If it's an ‘internal pressure’, you will not be able to let go of or lift the muscle fibers before they rupture.

Free radical revolution: Proof 1

Free radical revolution: rupture caused by free radicals in the inner collateral ligament of the baseball pitcher's elbow

For example, even if you try to throw a baseball ball at a speed of 200 km by yourself, there is no muscle strength (that is, there is a limit of'internal impact'), so the ball moves out of the hand around 100 km. <immediately> does not burst.

In other words, as the arm flies at a speed of 100 km, the muscle fibers of the shoulder tendon hold the arm so that the arm does not fall apart.

However, if a car running at a speed of 100km with the upper body secured to the seat collides with each other, the arms will fly at a speed of 200km in total (because the other upper body is firmly fixed), and the muscle fibers of the shoulder tendon will become < Immediately> will burst.

 <Free radical revolution: traffic accident, a case of muscle fiber destruction by external pressure>

Free radical revolution: ㅖroof 2

Another example of this external pressure is the hitting of golf. The elbow ligament is pressed by the outside called the ground where the swinging golf club hits, causing the muscle fibers to rupture <immediately>.

Another example of an external pressure is the soccer tackle. The knee and ankle ligaments are pressed by the outside called the opponent's foot, causing the muscle fibers to rupture <immediately>. Monster Gear thinks that unless it's such an impact, those elastic and hard muscle fibers will never break <immediately>. 

Internal pressure is the only cause of muscle fiber rupture due to exercise

So why on earth does our shoulder tendon, elbow ligament, or knee ligament rupture when we exercise a lot? In the previous post, you will remember free radicals that were produced as a by-product in the process of mitochondrial energy metabolism in muscle fiber cells.

I told you that as soon as free radicals are generated, they destroy cells by taking two electrons from the atoms of the surrounding cells. The cells around it are muscle fibers. And free radicals continue to occur as you exercise, that is, the longer you exercise. And it continuously destroys the muscle fibers.

​

The more exercised people are, the more likely they are to experience pain in the shoulders or elbows. Therefore, it can be pointed out that free radicals are the culprit that ruptures muscle fibers during exercise. 

 <Free radical revolution>

Epilogue

Until now, it has been known that muscle fibers rupture only with vigorous exercise. However, the muscle fibers are so elastic and hard that they will never rupture <immediately> only with intense exercise. It is the rupture of muscle fibers <step by step> by free radicals generated as a result of vigorous exercise.

There may be an opinion that "is not the same in conclusion?" However, it is completely different. Because it offers hope. “Even though I exercised violently, I effectively remove free radicals. If you can do that, your muscle fibers won't rupture even after intense exercise.”

In other words, the common sense that “muscle fibers must rupture when you exercise intensely” is broken. I dares to refer to this as the'Free radical Revolution'.

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