What should a good ergonomic chair be like?
Ergonomics is a science, also known as ergonomics or biotechnology. This discipline involves how to design and, or arrange objects to best achieve simple and safe human device interaction.
For example, an ergonomic seat is a seat designed to best support the human body, including posture, comfort, support and health considerations. (when designing ergonomic chair, the body data of many people will be collected for design)
Why should the chair conform to Ergonomics?
Ergonomic office chairs have many functions designed to improve your posture and provide correct support, but they can only do half the work - to truly feel the benefits of ergonomic chairs, you should first learn how to sit correctly:
♦ Keep a certain distance from the computer screen. Ideally, the top of the display should be flush with the eyes.
♦ Sit up straight and avoid lethargy. Your neck should be in a relaxed and neutral position.
♦ Keep your arms parallel to the floor.
♦ Keep your feet flat on the floor and avoid crossing your legs. This is to keep the blood circulation in your legs normal.
An ergonomic chair can be adjusted for better control and custom settings. If you want to buy chairs for different users, adjustability is particularly important. If you are buying a chair for your home office, or a chair for a person, consider using their body size to make a larger fit.
1. Seat height The optimal seat height should allow you to place your feet flat on the floor, which is why choosing a chair with an adjustable seat height is essential because everyone is different. What’s more, with most work desks remaining at a fixed height, it is important that the seat height can be altered. A seat height that ranges from 16 to 21 inches off the floor should work for most people.
2. Seat width and depth Proper seat depth should leave between 2 and 4 inches between the edge of the seat and the back of your knees. If the seat is too far forward, it may put undue pressure at the back of the knees.
3. Seat tilt Good ergonomic chairs will allow the seat to tilt, which allows for correct positioning of the pelvis. Anterior pelvic tilt is a posture problem that affects almost everyone who sits a lot, which is why it’s important to keep the pelvis in a neutral position when sitting, with 80-degree angles at the hips, knees and ankles.
4. Backrest Lumbar supportThis refers to the support given to your lower back and is an essential feature of an ergonomic chair. Ergonomic chairs support the natural 'S' shape of the spine, which prevents slumping and reduces stress on the spine and the pelvis. An adjustable backrest allows users to align the curve in the chair with the curve in their spine, for optimal support.
5. Backrest reclineAn adjustable backrest allows for greater tailored positioning for the user, as they can move the backrest to more specifically support their natural spine position. Using this feature throughout the day allows the backrest to take some of the weight from your upper body, reducing the pressure on your spinal disks and muscles.
6. SwivelThe swivel in an ergonomic chair helps users with their manoeuvrability, making it easier to reach different points of their desks without having to strain excessively.
7. ArmrestsArmrests help to reduce tension in the upper body and allow the shoulders to relax. However, armrests should not be used when typing as this reduces overall arm movement, which in turn increases wrist movement leading to strain on the forearm muscles.
8. HeadrestSupports the back of the head and the upper neck, reducing tension in the shoulders and upper torso.
A good ergonomic chair is made out of comfortable materials. The material should not cause the user's back to sweat. However, the materials used will depend on the budget;
10. WheelsIf your chair will be used on a hard surface, find a chair with soft rubber wheels. If your workplace/home office is carpeted, opt for hard wheels to help you navigate better.