From collectibles to cars, buy and sell all kinds of items on eBayWelcome! Sign in or register.
aAdvanced Search

Reviews & Guides

Write a guide

Ergonomic positioning for your office chair

by: lagunabeachauctions( 1400Feedback score is 1000 to 4,999) Top 5000 Reviewer
3 out of 4 people found this guide helpful.


When seated in your office chair, proper positioning is a key element in keeping up good blood flow and body health. Movement is critical to good ergonomics. To keep the proper posture while constantly moving throughout the day takes some practice. It all starts with knowing how to properly position your back and legs.

Adjust your backrest angle and the seat pan placing the torso and upper legs at a 90 degree or slightly reclined position. This provides the proper lower back support. Posture with a proper tilt mechanism (preferably with locking positions).

Your feet should rest firmly on the floor. If your feet do not touch the floor, even with seat height adjustment, you will need to find a footrest or platform to rest your feet on. When viewing a picture of this posture on the human body, you will notice that 90 degrees is the overall effect. The arms are at an angle of 90 degrees from the chest, the lower abdomen is 90 degrees from the lower leg and the upper leg is 90 degrees angled from the lower leg.

To keepthe ergonomics in mind, placing your monitor at the proper height for viewing and making sure to keep the recommended manufacturer distance from the computer is also important. Your eye level should be direct to the center of the monitor from the top and bottom and side to side to lessen neck twisting. The monitor should be adjusted accordingly to the seat height to get the right angles for comfort ability.

While typing on the keyboard or using a mouse device in your workstation. Relax the arms allowing them to hang down naturally from your shoulders. Next bring your forearms up so they are parallel with the ground. You want your wrist to be in a neutral position, very relaxed. Place your chair in front of your workstation desk and adjust the height of the seat so that your elbows are just at or above the keyboard height.

The right position in your office chair is critical for long term body health and good ergonomics can help to prevent future back, neck and arm problems. Your spine is comprised of vertebrae like a stack of bones. At your lower back, this normally curves in. In between these vertebrae is a separate disk, and like an ice pack, it is strong on the outside and full of gel in the inside. If your vertebrae decided to stay in their normal position, the space in between the vertebrae and the disks are evenly filled with this "gel".

When leaning forward, the vertebrae pushes all of the gel to the rear of the back. This motion compresses the nerves that exit the spine to the central nervous system. In response, the nerve tightens up your back muscles, thinking it is supposed to contract the lower muscles in your back. With this continued movement, the muscles slowly pull the vertebrae further our of line while pushing the gel further back against the nerves.

This can become a vicious circle that once started, is hard to stop and can take quite some time to correct. Your back muscles, constantly being contracted are starting to ache and at the end of your work day it is hard to get comfortable in other seating. This same nerve that runs through the spine also runs down the leg to the feet and toes. Without treatment, the buttocks, legs and foot can also start to feel the pain. In the worst case scenario, the "icepack gel"can completely break open and you can be in for a long recovery.

Proper lumbar support is necessary for prevention of muscle and nervous system issues when seated at your workstation. Without this prevention, serious injuries can occur and workplace production can be completely put on hold. Proper lumbar support can be found in most good office chairs. Make sure when shopping for your chair that it has the back support needed for your work hours.

Carpal Tunnel is a common workplace concern due to the rising numbers of people suffering from carpal tunnel due to bad workplace ergonomics. Carpal tunnel affects the hands, arms, fingers and even the back of the sufferer and can cause serious problems, rendering the worker useless for the simplest of tasks.

When constantly moving your fingers in a typing motion with your wrists bent, you are forcing your tendons to move in a pattern that they were not esigned for. Eventually, the rubbing of the tendons will cause so much swelling that it will leave no room for the median nerve. When the median nerve becomes damaged by this constant compression you can lose sensation in your fingers and hands, starting with a tingle similar to numbness.

Positioning your keyboard tray and mouse platform so that the elbows are at or above the keyboard height is important. Relaxing your arms so that they hang naturally from your shoulders will also help you to keep the proper position. Also make sure to keep your forearms parallel to the floor and your wrists in a neutral position. Make sure to always keep your feet on the floor, even if this requires a footrest.

 

 

 

 


Guide ID: 10000000001343089Guide created: 07/08/06 (updated 04/08/08)

 
Was this guide helpful? Report this guide

Ready to share your knowledge with others? Write a guide



 


eBay Pulse | eBay Reviews | eBay Stores | Half.com | Reseller Marketplace | Austria | France | Germany | Italy | Spain | United Kingdom | Popular Searches
Kijiji | PayPal | ProStores | Apartments for Rent | Shopping.com | Skype | Tickets


About eBay | Announcements | Security Center | eBay Toolbar | Policies | Government Relations | Site Map | Help
Copyright © 1995-2008 eBay Inc. All Rights Reserved. Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the eBay User Agreement and Privacy Policy.
eBay official time