Why an ergonomic chair is so important to you?

In recent years, the dangers of sitting for long periods of time have been featured in the news, social media and scientific research.For example, sitting for a long time can lead to diseases such as obesity and high blood pressure; sitting for a long time can affect people's memory and cognitive ability; people who are sedentary have a 40% higher risk of death than people who are less sedentary; People are 2.5 times more likely to develop diabetes than sedentary people.

The life-threatening illnesses mentioned above may shock you, but not only. Common lumbar muscle strain, lumbar disc herniation, cervical pain, sciatica and other problems are caused by prolonged sitting.

1. Improper seat back and lumbar support can cause lumbar muscle strain.

First, from an anatomical point of view, the root cause of all these hazards - the spine.

When a person is in a standard standing posture, the cervical spine, thoracic spine, lumbar spine and sacrum present four normal physiological curvatures. Due to the balance of force between the lumbar core muscles and the abdominal core muscles, the human body feels the most relaxed. The muscles that maintain this form of vertebrae. And there is no excessive stretching and shrinking.

But when we sit down, without proper seat back and lumbar support, the pelvis tends to tilt backward, the cervical and lumbar vertebrae change from kyphosis to kyphosis, the thoracic kyphosis is more curved, and the lumbar and abdominal core muscles are balanced. be broken.

The backrest and lumbar spine of the ergonomic chair are designed according to the normal curvature of the human spine. You just need to lean on the back of the chair, which supports the spine well and helps you easily maintain the normal curvature of the spine.

Improper seatback angle can lead to lumbar disc herniation.

Suppose the weight of the spine is 100kg in a standard standing position (certainly not that big, just for illustration), and when we sit in a standard sitting position, the weight on the spine under pressure will reach 150kg.

Secondly, under normal conditions, the lumbar nucleus pulposus is evenly loaded in the middle of the intervertebral disc; when the body leans forward, the enormous pressure on the spine pushes the nucleus pulposus backward.

After continuous accumulation and extrusion, the fibers of the lumbar intervertebral disc are destroyed, and it will gradually bulge and protrude, resulting in the well-known lumbar disc herniation, or even prolapse, not just pain.

It can be seen from the above analysis that the most comfortable posture is undoubtedly lying down, but it is obviously impractical to work while lying down. Therefore, if you want to avoid problems such as lumbar disc herniation, you need an ergonomic chair with an adjustable backrest angle. Helps us maintain a slightly backward posture and reduce pressure on the spine.

2. Improper headrest can lead to cervical spondylosis.

The etiology of cervical spondylosis is basically the same as that of lumbar disc herniation. Long-term work at a desk, lowering your head and playing mobile phones, the cervical spine bears far more weight than the head, the cervical disc herniation, and the compressed nerves cause pain, numbness and other symptoms.

Most computer chairs do not come with a headrest, or the headrest cannot be adjusted independently. The headrest of the ergonomic seat can be independently adjusted in height and angle to meet the needs of sitting posture, backrest, lunch break, etc.

3.  Improper seat cushions and armrests, making it difficult to maintain proper sitting posture

At the lowest end of the human pelvis are two round bones called the ischium. According to the body pressure distribution curve, these two small ischial bones bear more than 75% of the weight of the upper body, with the rest on the hips and thighs.

If the seat surface of the chair is too hard, the sciatic bones will fully bear more than 75% of the body weight, and problems such as sciatica may occur for a long time.

But if the surface of the chair is too soft, such as some boss chairs and sofas, the person will sink in, which will cause the femur to rotate upwards, the hip muscles will be compressed, and the blood vessels and nervous system will be many. At the bottom of the thigh, it will affect blood circulation and nerve conduction, resulting in numbness, edema and other problems.

At the same time, if the sitting surface is too soft and sinks a lot, the height of the armrests will increase the pressure on the elbows and shoulders, resulting in shoulder and neck pain.

The seat surface of the ergonomic chair can provide moderate elastic support for the hips and legs, avoid being too soft or too hard, and share the pressure to the greatest extent. Coupled with the height-adjustable armrest design, this situation can be well solved. .

To sum up, ergonomic chair provide the necessary support for our neck, back, waist, hips, legs and arms, help our spine maintain a normal physiological curvature, and make it easier for us to maintain a correct sitting posture . Minimize the damage caused by prolonged sitting.

Therefore, for sedentary people, an ergonomic chair is very necessary.