Sitting like this is very beneficial to the body. In daily life, people are used to slumping on chairs and find it more comfortable that way. However, sitting like that can not only easily injure your spine, but also make your hips enlarge. The correct sitting posture should be to sit only one-third of the chair, with your waist straight and your feet slightly on your tiptoes. Sitting this way can make your posture look good, dignified and decent.
: About sitting postures in different environments
1. Sitting postures for office workers
1. Lean the body slightly backward, and have support for the neck to ensure that the neck Release your own pressure on the support to avoid neck fatigue.
2. The arms hang naturally to relax the shoulder muscles; the arms are supported to reduce fatigue caused by the arms exerting force to maintain their own position.
3. Adjust the height of the desk to ensure that the hands are parallel to the keyboard.
4. Place the leg health pedal so that the knees are slightly higher than the thighs to ensure smooth blood circulation in the legs.
5. The angle between the line of sight and the vertical line toward the center of the earth is about 115 degrees. That is, the computer screen is slightly below eye level.
2. Driving posture
1. The upper body is slightly tilted back, and the neck is protected by the car driver's cervical vertebrae and the headrest relieves pressure.
2. The body is facing the steering wheel, the head is level with the shoulders, and the eyes are looking straight ahead.
3. The left hand should be between 9 and 10 o'clock on the steering wheel, and the right hand should be between 3 and 4 o'clock, but the left hand must be higher than the right hand.
4. There are double back cushions for support on the back, the chest is slightly raised, and the lower abdomen is slightly closed.
3. The correct posture of students when listening to lectures and doing homework
1. The waist and back are naturally straight, the chest is open, the shoulders are flat, and the chest is about a punch away from the desk; Place it on the table and open it slightly, separate the thumb and the other four fingers of your left hand into a figure eight shape, and press the left side of the paper.
2. When writing, keep your eyes one foot away from the paper.
Baidu Encyclopedia-Sitting Posture