Tag: Ergonomics

Ergonomics – Accessing Content on 21st Century ICT

vkunge1 Comment

See the image below :

Image: “01 21St Century ICT – Ergonomics-U.png”

Alternatively, there’s a video explaining how to access the content:

How to get the app (21st Century ICT)

Visit https://21stcenturyict.com/21st-century-ict/ to order the app online.

Call :

TT: 868-373-9780

US: 305-874-0365

Locally, the app is also available in RIK Services Trinidad Book World . (http://rikservices.net/)

© 2021  Vedesh Kungebeharry. All rights reserved. 

Ergonomics

vkunge1 Comment

Definition: Ergonomics is the science of designing objects for safe and efficient use by the people who use them.

It is usually applied to employees and the tools and furniture they use in the workplace.

Sitting Correctly at a Computer

Good ergonomics is not only for adults at work. You use computers at school and at home too! Look at the labelled diagram below to see how a person should sit at a computer workstation.

Numbered diagram of a person sitting correctly at a computer with a flat-screen monitor: top of the screen at eye level, back against a chair with lower-back support, elbows and knees bent at about 90 degrees, hands level with the keyboard and mouse, and feet flat on the floor
Correct sitting posture at a computer workstation. 1: Top of the screen at eye level. 2: Screen at least 50 cm away and side-on to the window, so there is no glare. 3: Lower back supported by the chair. 4: Armrests let your elbows bend at about 90°. 5: Hands level with the keyboard and mouse. 6: Chair can rock (tilt) slightly. 7: Seat depth can be adjusted. 8: Seat height set so your knees bend at about 90°. 9: Feet flat on the floor. 10: Head rest. 11: Wheels suited to the floor. Credit: Marcel Kollmar & Partynia, CC BY-SA 3.0 DE, via Wikimedia Commons

Good Posture Checklist

  • Feet flat on the floor (or on a footrest if your feet do not reach).
  • Knees bent at about 90°, with your thighs level.
  • Back supported by the chair, especially your lower back. Sit back in the seat; do not slouch.
  • Shoulders relaxed, with elbows close to your body at about 90°.
  • Wrists straight (not bent up, down or sideways) while you type and use the mouse.
  • Screen: the top of the screen at or just below eye level.
  • Distance: the screen about an arm’s length away (roughly 50–70 cm).
  • Breaks: rest your eyes with the 20-20-20 rule: every 20 minutes, look at something about 20 feet (6 metres) away for 20 seconds. Also stand up, stretch and move around regularly.

Required Reading : How to sit at a computer – https://www.wikihow.com/Sit-at-a-Computer

Think–Pair–Share: Sitting Properly at a Computer Workstation (TA)

Question:
What suggestions would you give someone on how to sit properly at a computer workstation?

Think – 1 minute
Individually, think of 3 suggestions for correct sitting posture.

Pair – 2 minutes
Discuss your suggestions with a partner. Agree on your 3 best suggestions.

Share – 3 minutes
Each pair shares one suggestion with the class. Avoid repeating a suggestion that has already been given.

Class Goal: Create a list of guidelines for maintaining correct posture when using a computer.

Do you agree?

IslandClass infographic: How to Sit at a Computer Workstation, showing head, shoulders, back, hips and thighs, screen, arms and hands, and legs and feet guidelines, with good and poor posture examples

Ergonomic Equipment

Some computer equipment is specially designed to be more comfortable and to help prevent aches and injuries.

A black ergonomic keyboard with a split, curved key layout and a built-in padded wrist rest
An ergonomic keyboard: the keys are split and curved so your wrists stay straight, and the padded wrist rest supports your hands. Credit: DraugTheWhopper, CC BY-SA 3.0, via Wikimedia Commons
A grey mesh office chair with armrests, a curved backrest, adjustment levers and wheels
An adjustable office chair: you can change the seat height, armrests and back support to fit your body. Credit: 14GTR, CC0, via Wikimedia Commons

Related post: Learn about the health and safety risks of using computers in Computer Hazards.

Ignore the following section below:

Portfolio Assignment

Use the internet to find a suitable picture showing how one should properly sit at a computer.

Print the picture and attach it to a page with the following details as illustrated in the diagram below:

The proper way to sit at a computer
By ___[Student Name]______
Date: ____________________


[IMAGE GOES HERE]


Insert the page into your ICT portfolio.

Attributions to media used in this post

Updates to this post

  • 2026-09-08: Struck out Portfolio assignment with instruction.
  • October 2026 – Added a posture diagram, a checklist and ergonomic equipment photos.

© 2018  Vedesh Kungebeharry. All rights reserved