What is the main difference between traditional physical training and physical exercise functional training?

Lying flat at the waist is the most relaxing.

The lumbar spine is composed of vertebrae, with elastic intervertebral discs as a buffer. Wen Jianmin said that its pressure changes with the change of human posture. When a person lies flat, the pressure in the lumbar intervertebral disc is the smallest, and the spine bears about 25% of the body weight. At this time, the pelvis is parallel to the shoulders and the spine is in a straight state, which is the posture with the least burden on the waist. On the other hand, when lying on the side, the shoulders, chest and basin are in contact with the bed surface, and the contact area is smaller than that when lying flat, but the pressure increases. Due to the gravity of the organs in the abdominal cavity, the spine bends downward, making the upper part of the spine compressed and the lower part stretched. In order to avoid low back pain, usually lie flat.

Standing is more stressful than sitting.

Many people think that standing is more tiring than sitting, but in fact, when standing, the pressure on the spine is 100%, while when sitting, the pressure on the waist is 1.4 times that of standing. Because when sitting, the waist and buttocks are vertically stressed, while when standing, its strength is evenly transmitted from top to bottom, which will not cause excessive pressure on the waist. But standing sideways can aggravate the tension of a muscle. After a long time, it will cause uneven stress on both sides of the lumbar spine, leading to low back pain.

Wang Zhenhu told reporters that a good standing posture should be that the chin is slightly adducted, the abdomen is slightly tightened, and the pelvis is slightly forward. The correct sitting posture should be upright, with the back leaning forward slightly, the waist leaning on the backrest, and the upper two-thirds of the thighs sitting on the chair. Even if the sitting posture is correct, people who are sedentary or prone to backache can add a cushion to the chair to avoid excessive bending or straightening of the lumbar spine due to improper posture.

Feeling comfortable leaning forward is mostly an illusion.

When working and studying, most people like to lie on their desks or go shopping in the supermarket. They lean forward and feel comfortable leaning on the shopping cart, especially when the novice is driving, which leads to back pain. In fact, leaning forward is the most stressful posture of all. The spine is stretched because of compression, resulting in "old injury", which oppresses peripheral nerves and causes low back pain. Especially when lifting weights, leaning forward is equivalent to pressure load. Wen Jianmin suggested that in addition to maintaining a correct standing posture. Always clean up housework at home, such as mopping the floor, washing dishes and choosing vegetables. Keep your spine straight and not too bent, or you will easily hurt your waist.