Fully adjustable armrestsĪrmrests support the shoulders and prevent strain throughout the arm. They should be adjusted so that there is a comfortable 90 ° angle through the forearm when the shoulders are relaxed. Ergonomic armrests usually have width adjustment so that they can remain close to the body. The top of the armrest might also swivel so that you can sit as close to the desk as possible. If you are in an office of 5 or more screen users, DSE regulations state that office chairs must have a five-star base. Usually made in high-grade plastic or polished aluminium, these prevent the chair from tipping and keep your feet safely on the ground when you adjust your posture. The castors on the base will vary based on your job specification and environment: If your office has carpet, soft floor castors will compensate for this and if you are on a tall lab stool you will most likely have a chair with break loaded castors to stop the chair from slipping away from you. The back support of an ergonomic chair is height adjustable so that it can offer maximum support to the lumbar region of the spine. The shape and fabric can vary based on the ergonomic principle that it is trying to achieve but all offer a good level of support to match the contours of the spine. If the chair has a mechanism built in such as a tilt mechanism, this also means your spine remains supported whilst you move throughout the day. HSE specifications note that the seat, armrests and backrests should be well padded to ensure that the worker’s body does not press uncomfortably on the frame of the chair. Padding needs to be firm rather than soft and of good quality to ensure that the chair remains comfortable for a reasonable time.
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