Are you sitting in a dangerous position? What is the correct sitting position?

The lumbar spine bears almost the entire weight of the torso and upper limbs, maintaining the balance of the body.

It is no exaggeration to say that the waist is the most important part of the human body. If the lumbar spine is injured, back pain and other waist problems will follow. The injury to the lumbar spine often comes from a bad sitting posture, so long-term desk workers should pay special attention to it.

If your sitting posture is incorrect, besides looking listless, you are also prone to back pain, and may even affect your spine, compress your nerves, and ultimately affect your physical health.

The worst sitting posture

Correct and elegant sitting posture is a civilized behavior, which can reflect a person's physical beauty and behavioral beauty. The correct sitting posture requires "sitting like a clock", that is, sitting should be as upright as a clock.

One of the three most undesirable sitting postures is crossing your legs . Although crossing your legs can adjust the body's center of gravity, making it more stable when sitting, and temporarily relax the lower limbs and sole muscles, habitually crossing your legs for a long time will cause pathological changes in many systems of the human body.

The normal human spine should be "S" shaped when viewed from the side, but when crossing one's legs, one tends to bend over and hunch over. Over time, the spine will form a "C" shape, causing uneven pressure distribution in the intervertebral disc and strain and damage to the waist muscles. Over time, intervertebral disc degeneration will also compress the nerves, causing more serious symptoms.

Second, leaning forward . When you read, write, or organize materials for a long time, you will unconsciously lean forward. This posture may seem more comfortable, but it actually puts more pressure on your waist than sitting upright.

When you sit on a chair and lean forward, your abdominal muscles do not need to exert force, but the muscles in your waist and back pull your torso like a taut bowstring. If you exert force for a long time, the waist muscles will be overwhelmed and cause pain and cramps.

Third, the lower back is hanging . The lumbar spine is in a kyphotic state, without support, and the ligaments are in a relaxed state, losing their original fixing function. The spine is prone to sequential deformation, the physiological curvature becomes straight, and the muscle balance is broken, which will cause overall lumbar degeneration over time.

What is the correct sitting posture?

Correct sitting posture: lean back against the chair .

This way, your back and buttocks can be fully supported on the chair backrest. If the chair is too high, you can put a footstool under your feet. It is best not to sit with your buttocks about 1/2 of the front of the chair and lean forward to work.

If you really cannot maintain this posture when working on a computer, you should relax your lumbar spine every half an hour. You should not continue working in an unhealthy posture for a long time.

In addition, a cushion on the back of the chair is also helpful to maintain the correct sitting posture. Even when driving, the correct driving posture is to lean your back completely against the back of the driver's seat and lean your upper body slightly backward.