Is Your Desk Posture Causing Your Back Pain?
Studies show the average adult spends around 10 hours a day sitting. Here is what that does to your spine — and exactly how to set up your workstation, whether you sit, stand, or both.
1To Sit or To Stand?
The answer is both. If you were asked to run 10km tomorrow, most people could not do it without training. The same applies here — if you were asked to stand for 10 hours tomorrow, your body would be unconditioned for it and would likely not cope. Back and neck pain would develop before the end of the day.
Standing desks are excellent and take load off the low back, but researchers have found that starting with 2 hours of standing per day is ideal, gradually building to 4 hours. It does not all have to be in one stint.
Recent studies in the British Journal of Sports Medicine link being sedentary with higher risks of heart disease and other conditions. One study found that a group of sedentary workers developed healthier outcomes after adding just 2 hours of standing to their daily work schedule.
Standing improves not only back and neck pain but also cardiovascular health and blood flow, helping you think more clearly and stay alert.
A practical note: wear good footwear, and if the flooring at your workstation is hard, use rubber matting. If you wear heels to work, keep a flat pair at your desk for the time you spend standing.
2Ergonomics: Setting Up for Sitting
1. Elbow measure
Sit comfortably as close as possible to your desk so your upper arms are parallel to your spine. Rest your hands on your work surface. If your elbows are not at a 90-degree angle, adjust your chair height up or down.
2. Thigh measure
Check that you can easily slide your fingers under your thigh at the leading edge of the chair. If it is too tight, prop your feet up with an adjustable footrest. If you are unusually tall and there is more than a finger width of space, raise the desk so you can raise your chair.
3. Calf measure
With your bottom pushed against the chair back, try to pass your clenched fist between the back of your calf and the front of the chair. If you cannot do that easily, the chair is too deep — adjust the backrest forward, insert a lumbar support cushion, or change chairs.
4. Low back support
Your bottom should be pressed against the back of the chair, with a cushion causing your lower back to arch slightly so you do not slump as you tire. This is essential to minimise strain on your back — slouching places extra stress on the structures of the low back, particularly the lumbar discs.
5. Screen distance
There should be 50–70cm between your eyes and the screen when sitting up straight. Increase the screen zoom if needed so you are not leaning forward to read.
6. Screen tilt
The screen should be tilted at an angle of 10–20 degrees upwards.
3Ergonomics: Setting Up for Standing
1. Floor surface
Make sure the surface you are standing on is not too hard. On concrete or hard flooring, use a rubber mat.
2. Footwear
If you wear heels to work, keep a supportive flat pair to change into at your standing workstation.
3. Elbow measure
Stand comfortably as close as possible to your desk so your upper arms are parallel to your spine. Rest your hands on the work surface. If your elbows are not at 90 degrees, adjust the desk height.
4. Screen distance
Again, 50–70cm between your eyes and the screen, increasing zoom rather than leaning in.
5. Screen tilt
Tilted 10–20 degrees upwards.
4Tips for Relieving Pain at Your Desk
Low back pain, sciatica, leg, knee and foot pain, shoulder pain and headaches are just a few of the complaints that good workstation ergonomics can ease. But if your setup is already good and you are still sore, try these.
Low back pain
Try tilting the front of your chair slightly downward to keep your hips above your knees. The tilt should be no more than 2cm — only very slight. This lets you keep a neutral low back position rather than rounding backwards, which helps keep low back pain at bay.
Shoulder pain and headaches
A gentle neck and shoulder stretch at your desk can relieve muscular tension. Gently lean the neck to one side and look towards your armpit. If you are leaning right, support your head with your right hand — do not pull the neck over. Instead, tuck your left hand under your bottom, palm upwards, and bend your left elbow as if pulling it toward the floor. This increases the stretch to a comfortable level through the left side of the neck. You can change which muscles are stretched by carefully turning your head away from your armpit.
Common Questions About Desk Posture
Are standing desks actually better for back pain?
They help, but only as part of a mix. Standing all day causes its own problems. The evidence supports starting at about 2 hours of standing a day and building to 4, alternating with sitting so different muscle groups share the load.
How far should my screen be from my eyes?
50 to 70cm when you are sitting up straight. If text is hard to read at that distance, increase the screen zoom rather than leaning forward — leaning is what creates the neck and upper back strain.
My setup is right but I am still sore. What now?
Try the small chair tilt for low back pain and the desk-based neck stretch described above. If pain persists beyond a couple of weeks, get assessed — persistent desk-related pain often involves joint restriction that will not resolve with setup changes alone.
Desk pain that has not shifted in weeks?
Our osteopaths and physios assess the whole picture — your posture, your workstation, and what is actually restricted.