Physiotherapy Body Health by Paula

Support your back
If your work involves sitting a lot and using a computer, here are some tips to help you sit correctly.
You can reduce your risk of back pain by adjusting your chair so your lower back is properly supported.

Adjust your chair
Adjust your chair height so you can use the keyboard with your wrists and forearms straight and level with the floor. This can help prevent repetitive strain injuries.
Your elbows should be by the side of your body so the arm forms an L-shape at the elbow joint.
Rest your feet on the floor
Place your feet flat on the floor. If they're not, ask if you can have a footrest, which lets you rest your feet at a level that's comfortable.
Don't cross your legs, as this may contribute to posture-related problems. Your knees should be slightly lower than your hips. Use a footrest, if it feels necessary.
Your screen should be directly in front of you. A good guide is to place the monitor about an arm's length away, with the top of the screen roughly at eye level.
To achieve this, you may need a monitor stand. If the screen is too high or too low, you'll have to bend your neck, which can be uncomfortable.

Using the keyboard
Place your keyboard in front of you when typing. Leave a gap of about 4 to 6 inches (100mm-150mm) at the front of the desk to rest your wrists between bouts of typing.
Keep your arms bent in an L-shape and your elbows by your sides.
Some people like to use a wrist rest to keep their wrists straight and at the same level as the keys.
Keep your mouse close
Position and use the mouse as close to you as possible. A mouse mat with a wrist pad may help keep your wrist straight and avoid awkward bending.
If you're not using your keyboard, push it to one side to move the mouse closer to you.

Avoid phone strain
If you spend a lot of time on the phone, try exchanging your handset for a headset. Repeatedly cradling the phone between your ear and shoulder can strain the muscles in your neck.

Take regular breaks!
Don't sit in the same position for long periods. Make sure you change your posture as often as is practicable.
Frequent short breaks are better for your back than fewer long ones. It gives the muscles a chance to relax while others take the strain.

Based on: www.nhs.uk/live-well/healthy-body/how-to-sit-correctly/

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