According to research, sitting in a static position for long periods of time increases stress in your arms, shoulders, back and legs. Ergonomic office chairs can help you maintain a good posture with back support. However, you won’t feel the full benefits of an ergonomic chair by just owning one – the chair must be adjustable to suit your body.
Here are some things to look for when buying an ergonomic office chair:
Seat height: You should be able to adjust the height of your chair so your feet are flat on either the floor or a footrest. When seated your knees should be at a 90-degree angle, this keeps the pelvis in an upright position which prevents slouching and reduces pressure on the thighs and hamstrings.
Backrest height and lumbar support: It is important that the chair can support the natural ‘S’ curve of the spine, especially the inward curve of the lower back. A chair which has height adjustment and a shaped back can provide further dedicated lumbar support.
Seat depth adjustment: When sitting, your back should be able to maintain full contact wih the backrest no matter how far forward or back the seat goes. To reduce pressure on your calves and provide support for your legs, there should be no more space than two fingers between the back of your knees and the front of the seat.
Seat armrest positioning: To reduce muscle strain when performing a variety of tasks, look for a chair with adjustable armrests. As a guide, adjust the arm rest so that your arms can rest on the arm pad at a 90-degree angle.
Swivel and roll: To avoid unnecessary strain on your body from reaching and twisting, it is important to look at chairs with wheels and swivel ability.
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