Form the habit of exerting force on the back swing independently, and at the same time, form the independent elbow flexion action to correct the straight arm swing.
Do not hold your hands tightly.
The method to correct the weakness of swing and straight arm swing: in a group of two, when the practitioner’s arms are swinging back, the elbow joint is forced to hit the helper’s hand back and up.
However, the wrong arm swing will hinder the running efficiency and affect the running performance, so the correct arm swing is also important for improving the running performance.
⑵ The reason for straight arm swing is that the technical requirements are incorrect, and there is no natural elbow flexion and movement tension.
2.
The shoulder joint is required to be relaxed, and the elbow joint is used as the point of exercise force, swinging back and forth, slow first and then fast.
It is required that your hands should not cross the front midline of your body when swinging forward.
After mastering this movement, take your hands off your shoulders and do a natural swing exercise of exchanging back and forth.
It is particularly common among girls.
This repeated practice enables the practitioner to enhance the consciousness and strength of the back swing.
The correct method is: the practitioner puts his hands on the same shoulder, takes the shoulder joint as the axis, and uses his elbows to swing back and forth.
So that all parts of the body can fully play their roles and achieve the goal of improving performance.
The arm action is used to offset the angular momentum of the legs, so that the net angular momentum of the human body is zero.
During running, if the arm swing is not used to offset the angular momentum of the leg, it will lead to a significant increase in oxygen consumption, because you need to find other ways to maintain the stability of the trunk during running.
I believe that when you are tired and can’t run long in your school days, the PE teacher will always encourage you to “stick to it again, put your arms up, and don’t stop.” So, why do you always put emphasis on swinging your arms when running? In fact, Newton’s third law is used to explain that the force and reaction between two interacting objects are always equal in size and opposite in direction, acting on the same straight line.
Source: “Sports Child Care” public account, please contact to delete any infringement! -.
3.
The angle between the big and small arms swinging forward is 90 degrees, and the mouth of the hand is flat with the shoulder; The included angle between the big and small arms is about 135 degrees.
Make a fist with your fingers half way or stretch your palms naturally.
There are two possible reasons for incorrect arm swinging: ⑴ The arm swinging action does not take the shoulder joint as the axis, swinging back and forth, but the left and right swinging takes the elbow joint as the axis, the back and forth swinging takes the elbow joint as the axis, and the forearm swings up and down.
1.
In this way, through repeated practice, the wrong left and right pendulums can be corrected.
Method to correct left and right arm swing: In the process of running, left and right arm swing is a common mistake in students’ practice.
The main reason is that the swing route of the elbow joint is not correct and the elbow joint does not move forward or backward.
Correction method: Do more arm swinging exercises in situ, pay attention to the correctness of the movement, and carry out correct arm swinging exercises according to the rhythm.
The correct arm swinging action takes the shoulder joint as the axis, and swings back and forth.
With the increase of running speed, you will make greater leg acceleration, and at the same time, the arm swing speed will be accelerated, which is like a mass damping system to keep your body stable.