1. Raise the chair until the elbows are at height of keyboard

2. Adjust the seat so your feet are flat on the floor and your knees are equal to, or slightly lower than your hips

3. Push your hips as far back as they can go in the chair

4. Keep elbows close to your body and shoulder relaxed with wrists and hands in line with forearms. Armrests should support forearms or should be underneath the desk.

5. PC screen: Top most line of work at approximately eye level

6. Viewing distance: As far as possible while still being able to see the screen clearly.

7. Keyboard: Keep the keyboard in close proximity to avoid reaching forward. Keep the mouse in close proximity and alongside the keyboard.

Remember to take regular, short breaks of 1-2 minutes every 20 – 30 minutes.

Image: Google Images

Source:  ergo-plus.com/workplace-ergonomics