When standing or walking, should I use my heel or forefoot as my center of gravity? Ask for a scient

The heel is the center of gravity, the toe is the fulcrum of the body, and the ball of the foot is arched, so the heel is the center of gravity.

When standing or walking, the body's center of gravity usually falls in the middle of the two feet, which is the arch of the foot. This location is about the center of the soles of the feet, which is between the heels and toes.

While both the heel and forefoot can support the weight of the body, they differ in the way they are supported. The heel mainly supports the weight of the body through the calcaneus and plantar fascia, while the forefoot is supported by the metatarsal bones and plantar muscles.

Under normal circumstances, when people walk or stand, the center of gravity of the body constantly shifts between the two feet, rather than falling on just one foot. As a result, both the heel and forefoot are involved in supporting the weight of the body, but there is a focus at different stages of movement.

Specifically, when walking, the heel will hit the ground first, and then the ball of the foot will roll forward until the forefoot is completely on the ground. During this process, the body's center of gravity is constantly shifting between the feet.

Therefore, whether it is the heel or the forefoot, they are part of the weight that supports the body. When standing or walking, you should maintain your balance so that your weight is in the middle of your feet.

Related to the posture of the body, the center of gravity leaning forward is on the ball of the forefoot, and the leaning back is on the heel.

This is because each person's arch bone structure is different, and the position of the arch (arch) to distribute the force is also different, and the natural center of gravity is different.

Because some people have beer bellies, some people don't, some people have corns on their feet, and some people don't, so it's not interesting not to give points.

Actually, there is no ...

Everyone's writing is in Chinese!

But the font is different!

1. All the forefoot lands first, you can use the elasticity of the arch of the foot, so that the momentum of the person is cushioned, if the heel hits the ground first, you will feel that walking is very hard, there will be a lot of pressure on the spine, and you will be tired after walking for a while. Hehe, these are all biology in middle school, and that's what it should be like Hehe, it's usually like this If you walk a lot, or when you run, you have to land on the ball of your front foot, otherwise you will be very tired

Whenever you stand up, you must use your heels to support you!!

Only when walking (stepping) will there be a "force" on the soles of the feet!

The heel can only be "supported", not "forced".

Only in the case of "heel lifting" will there be force on the ball of the foot. At this time, the force is because the toes can no longer play a supporting role, and the ankle joint should be fixed with the help of muscle contraction, and gravity should be transmitted to the ball of the foot to replace the supporting role of the toes.

If you can wear high heels, it means that you are an adult, that you have received a secondary school education, and that you should already have the knowledge of "Mechanics" in middle school physics.

Draw a exploded diagram of the lines of force under different heel forces, and you should be able to understand it.

When the heel hits the ground directly, the heel is in the same plane as the ball of the foot, and the heel bears all the gravitational action, and the ball of the foot is not forced.

When the heel is lifted (when wearing high heels), a triangle is formed between the heel, the ball of the foot and the ground, so there is a "force" decomposition.

So, you should understand why your feet hurt when you wear high heels.

You should understand why the higher the heel, the more painful your foot is.

Of course, if you have the forefoot and your heel for a long time, you may faint.

Queue actions - standing, resting, stopping and turning, stepping in unison, running, standing, saluting, column, horizontal, gathering, disbanding, tidying, and reporting the number.

1. Stand upright. The heels are close together, and the toes of the toes are 60 degrees apart; Keep your legs straight; The lower abdomen is slightly retracted, and the chest is naturally raised; The upper body is upright and slightly leaning forward; The shoulders should be flat and slightly stretched back; The arms are drooping, naturally straightened, and the fingers are naturally slightly bent together; The tip of the thumb is attached to the second segment of the index finger, and the middle finger is attached to the seam of the trousers; The head should be straight, the neck should be straight, the mouth should be closed, the chin should be slightly closed, and the eyes should be level with the front.

Second, straddle. Step your left foot to the left more than the length of your foot, keep your feet straight, keep your upper body upright, and place your weight between your feet. With both hands behind the back, the left hand holds the right wrist, and the base of the thumb is the same height as the lower edge of the outer belt (the upper edge of the inner belt); The fingers of the right hand are naturally bent and the palm is facing back.

3. Take a break. The left foot extends more than two-thirds of the way to the full foot in the direction of the toe, the feet are naturally straight, the upper body remains in an upright position, and the center of gravity of the body falls mostly on the right foot.

Fourth, stop the intermittent transfer method.

To the right (left) - turn with the right (left) heel as the axis, the right (left) heel and the front of the left (right) foot at the same time, so that the body is coordinated to turn 90 degrees to the right (left), the weight falls on the right (left) foot, the left (right) foot takes a shortcut to quickly move closer to the right (left) foot, and establishes a positive posture. When turning and leaning on your feet, keep your feet straight and your upper body in an upright position.

Fifth, the number of reports. From right to left, the horizontal team turned their heads in a short and loud voice to report the number, and the last place did not turn their heads. When the number of horizontal lines is in line, the last place in the last column is reported as "full" or "missing".

The main ones are as follows:

1. Stand upright, take a break and stand across.

2. Stop the intermittent transfer method.

3. Take off your hat and wear a hat.

Fourth, salute and finish.

5. Sit down and stand up, squat down, and stand up.

Sixth, step and stand, step and stand, run and stand.

7. Footwork exchange.

8. Transit between marches.

Operational standards and requirements.

1. When standing upright, you should be energetic, have a correct posture, have a strict military appearance, stereotype, positioning, accurate movements, a serious and natural expression, look ahead with both eyes, and have a strong and upright spirit.

The requirements are: "three up, two harvests and one positive top". That is: "three straight" is to stand up legs, chest, and neck; "Two retractions" is the lower abdomen and jaw are slightly retracted: "one positive top" is the body standing upright, and the shoulders are slightly stretched back to make the head have the feeling of upward topping.

2. When straddling, stride and backhand quickly and accurately, straighten your legs naturally, and maintain a standing posture with your upper body. The requirements are: "Stride back hand quickly, palm back left and right; The upper body is upright and the military posture is good, and the center of gravity of the body is at the two feet".

3. When taking a break, stretch your feet quickly and accurately, straighten your legs naturally, and maintain an upright posture with your upper body. The requirement is to do: "one move and two extensions".

"Shift" means to shift the center of gravity, so that most of the body's center of gravity falls on the right foot; "Lifting" means lifting the left heel slightly; "Stretching" means that the soles of the feet rub the ground slightly, and quickly extend about two-thirds of the whole foot.

5. The stop-and-turn method is a method of stopping and changing the direction between stops. Turn right (left) and turn backward. If necessary, you can also turn half-facing to the right (left).

6. When walking together, we should be energetic, have a correct posture, coordinate arms and legs (feet on the ground, hands in place, and swing arms out of our feet), the rhythm is clear, the swing arms are natural and generous, stereotyped, positioning, the stride length and pace are accurate, the eyes are looking ahead, and the spirit of moving forward bravely (appearance standards: walking in a straight line and the body is stable, and the swinging arms are naturally accurate by the legs).

The requirements are: "Heel first, ankle slightly forced, knee back, body forward".

7. Salute is to show the unity and friendship between soldiers, and to express the mutual respect between subordinates and leaders, subordinates and superiors. Military personnel must have courtesy. Subordinates or subordinates shall salute the chief or superior, and the chief or superior shall return the salute. Salutes are divided into hand salutes, gaze salutes and gun salutes.

The queue actions of a single soldier are: standing upright, straddling, stopping and turning the method, marching, standing, changing the footwork, turning the method between marches, saluting, saluting and saluting a single soldier, sitting, squatting, standing up, taking off the hat, putting on the hat, taking an oath, tidying up the dress, carrying a gun, carrying a barrel for 40 bazooka hands, holding a barrel for 120 anti-tank bazooka hands, submachine gunners, Type 81 automatic riflemen.

In addition, it also includes the Type 95 automatic rifleman, the Type 03 automatic rifleman, the squad machine gunner, the sniper infantry, the gunner's gun, the 40 bazooka man's tube, the 120 anti-tank bazooka man's gun, and other ** hands.