There is no best sitting posture
Physiotherapists don't agree on one. The Chartered Society of Physiotherapy says "There is no perfect posture or right or wrong desk set up" and "The key is to keep moving".
Posture guide
Best sitting posture: how to sit at a desk, and why moving matters more
There is no single best way to sit. Desk set-up advice from workplace health regulators is about comfort and fit: the screen at about eye level, the keyboard near elbow height, and your feet and lower back supported. Set it up once, then stop worrying about holding a perfect position.
The bigger win is moving: short, frequent breaks, changing position, a sit-stand desk if you have one, and a few minutes of exercise. This guide gives the UK and US set-up advice, what trials show for set-up, breaks, standing desks and chairs, a 3-minute desk break and desk exercises with 3D demos, and when aches need checking.
The short version
Set your desk up for comfort
The UK's Health and Safety Executive (HSE): top of the screen level with your eyes and about an arm's length away, keyboard just below elbow height, thighs and lower back supported. That makes you comfortable; on its own, it hasn't been shown to prevent aches.
Break up sitting, little and often
HSE says 5 to 10 minutes every hour is better than 20 minutes every 2 hours, and the NHS advises getting up and moving around every hour or so.
Sit-stand, but don't stand all day
Sit-stand desks cut sitting at work by about an hour a day and may ease back discomfort a little, but standing for more than 4 hours a day is linked with back symptoms. Switch between the two.
Exercise has the best evidence for desk aches
In office workers with neck pain, strengthening and general fitness training reduced pain, and 2 minutes a day of band exercise cut neck and shoulder pain in 10 weeks.
How to set up your desk
From the UK's Health and Safety Executive (HSE) and the US Occupational Safety and Health Administration (OSHA). It's for comfort and fit, not a guarantee against aches.
The screen
HSE: top of the screen level with your eyes, about an arm's length away, directly in front of you, and not facing a window or bright light. OSHA: at least 50 cm away, ideally 50 to 100 cm, with the top at or slightly below eye level. If you wear bifocals, lower the screen so you don't tip your head back, and make the text bigger rather than leaning in.
Chair and feet
Set the seat so your thighs are supported and your feet are flat on the floor, with a footrest if they don't reach. HSE suggests a gap of 2 to 3 cm between the front of the seat and the back of your knee. OSHA counts leaning back in your chair, as well as sitting upright and standing, among comfortable working positions.
Back support
Use the chair's lower-back support, or a cushion or rolled towel if it has none. It's for comfort: lumbar supports haven't been shown to prevent back pain.
Keyboard and mouse
Keyboard just below elbow height, with your forearms roughly level, wrists straight and some space in front of it to rest your hands. Mouse close to the keyboard, in line with your elbow, forearm resting on the desk and not gripped tightly. In office workers followed over time, a keyboard close to the body went with more neck pain.
Laptops
For long spells, use a separate keyboard and mouse and raise the laptop on a stand or books, or plug in a separate screen. With a laptop on their laps, people tipped their heads down more and bent their wrists back more than at a desk. At home you may not need office furniture, as long as you can work comfortably.
Your rights at work in the UK
If you use a screen every day for an hour or more at a time, your employer must assess your workstation, plan breaks or changes of activity, give you training, and arrange and pay for an eye test if you ask. This applies to home workers too.
What the evidence says
No sitting posture has been shown to be bestStrong evidence
Shown nine sitting postures, 295 physiotherapists mostly chose one of two very different ones, and in a survey of 544, three different postures were picked as best. Healthy people needed feedback or hands-on help to copy one "ideal" sitting curve. A physiotherapy journal viewpoint notes that the belief that pain comes from sitting incorrectly lacks strong evidence, despite a large posture industry.
Sitting at work hasn't been shown to cause back painEmerging evidence
In a review of 24 studies, the best found no link between sitting at work and low back pain, and no sign that more sitting meant more pain. A review of 41 reviews found no agreement that sitting or other postures cause back pain.
Set-up changes alone haven't been shown to prevent painMixed evidence
A Cochrane review of 15 trials in 2,165 office workers found no effect for most workstation changes; adjusting the workstation and a sit-stand desk (one trial each) didn't reduce arm pain or discomfort. An arm support used with a different mouse design roughly halved new neck or shoulder problems in 2 trials. Another review found ergonomic changes no better than none for back and neck pain.
Exercise at work eases neck painEmerging evidence
In a review of 27 workplace trials, neck and shoulder strengthening and general fitness training reduced neck pain in office workers who had it (moderate-quality evidence), and the more people took part, the bigger the effect. In 198 workers with neck and shoulder pain, 2 minutes a day of band exercise, 5 days a week, cut pain by 1.4 points out of 10 in 10 weeks.
In 142 office workers, a 10 to 15 minute stretching routine 3 times a week reduced neck, shoulder and low back aches over 6 months; workstation changes helped in the first months too.
Breaks: how often to get up
Short and often
No law sets how long or how often, but HSE says short, frequent breaks are better: 5 to 10 minutes every hour beats 20 minutes every 2 hours, and a break should let you get up and move, or at least stretch and change position. The NHS advises getting up and moving around every hour or so to lower the risk of blood clots.
Our editorial starting point: stand up and move for a minute or more every 30 to 60 minutes.
What break trials foundMixed evidence
A Cochrane review of 6 small trials found that extra breaks may not reduce aches in healthy workers. But in a review of office workers, active breaks that changed posture reduced discomfort, and breaks didn't cost productivity. In 42 data-entry workers, an extra 5-minute break in each hour reduced discomfort and eye strain without slowing their work.
Breaks and blood sugarEmerging evidence
In 24 people with type 2 diabetes, 3 minutes of light walking or simple exercises (half squats, calf raises, buttock squeezes and knee raises) every 30 minutes lowered blood sugar after meals compared with sitting all day. The 3-minute desk break below uses these moves.
Source 35
The 20-20-20 ruleMixed evidence
Optometrists suggest looking at something 20 feet (6 metres) away for 20 seconds every 20 minutes. In 29 people with eye strain, reminders reduced symptoms over 2 weeks, but there was no comparison group and the benefit had gone a week after stopping. In a lab trial of 30 people, 20-second breaks made no difference. It's a reasonable habit with thin evidence.
Screens and your eyes
Screen work doesn't permanently damage your eyes, but it can cause tired eyes, discomfort, temporary short-sightedness and headaches. Look into the distance from time to time and blink often.
Standing desks
They cut sitting timeEmerging evidence
In a Cochrane review, sit-stand desks reduced sitting at work by about 100 minutes a day in the first 3 months (10 studies, low-quality evidence) and by about an hour a day at 3 to 12 months. In an NHS trial of 146 office workers, desks with coaching cut sitting by 83 minutes a working day at 12 months, with better engagement at work and less fatigue.
They may ease back discomfort a littleEmerging evidence
In a review of 8 studies, sit-stand desks reduced low back discomfort slightly, by about a third to half a point on a 10-point scale. Switching between sitting and standing every 30 minutes for a week reduced fatigue and lower back discomfort in 23 office workers, and in 46 employees with long-lasting low back pain, a sit-stand desk eased their pain over 3 months.
Don't swap sitting for standing all dayEmerging evidence
Standing at work for more than 4 hours a day is linked with low back symptoms. In a lab study, 2 hours of standing computer work raised discomfort everywhere and made legs swell. In 7,320 Ontario workers followed for 12 years, mainly standing jobs carried about twice the heart disease risk of mainly sitting jobs.
How much to stand
No trial has found the right mix. An expert statement suggests working up to 2 hours a day of standing and light walking during work, then 4, but more than 4 hours of standing is linked with back symptoms. Our editorial suggestion: change between sitting and standing every 30 to 60 minutes, and keep moving.
Sitting time and your health
What the guidelines sayStrong evidence
The World Health Organization (WHO) says adults should limit the time they spend sedentary (sitting or lying while awake), and that replacing it with activity of any intensity, even light, helps. The UK Chief Medical Officers say break up long periods of inactivity with at least light activity. Neither sets a time limit or a break schedule, because the evidence can't yet.
Activity offsets sittingEmerging evidence
In more than a million people, about 60 to 75 minutes a day of moderate activity, such as brisk walking, removed the higher risk of early death linked with sitting more than 8 hours a day. The NHS notes that you can hit your weekly activity target and still be at risk if you spend the rest of the time sitting.
Long sits and blood clotsStrong evidence
Sitting still for long spells, such as on journeys of more than 4 hours, raises the risk of a deep vein thrombosis (DVT), a blood clot in a leg vein. The NHS advises against sitting still for long periods: get up and move around every hour or so.
Source 7
Chairs, cushions and gadgets
Lumbar supportsMixed evidence
HSE and OSHA suggest a cushion or rolled towel if your chair doesn't support your lower back. In lab studies, a lumbar roll reduced how far people's necks bent forward (very low-quality evidence), and a lumbar pillow changed the lower-back angle by about 3 degrees without making people feel more comfortable. Lumbar supports haven't been shown to prevent or treat back pain.
Exercise ballsEmerging evidence
In three small lab studies, sitting on an exercise ball didn't meaningfully change muscle activity, spine posture or spinal load compared with a chair or stool, and people reported more discomfort. The authors concluded the advantages may not outweigh the disadvantages.
Kneeling chairsMixed evidence
In 20 people, a kneeling chair kept the lower-back curve closer to standing than an ordinary chair. In an older trial of 20 people, comfort ratings favoured the ordinary chair, neck and lower-back muscles worked harder in the kneeling chair, and the results didn't support the claim that it reduces back pain.
Armrests, mice and keyboardsMixed evidence
Armrests are optional: set them so your shoulders stay relaxed, or take them off if they get in the way. An arm support with a different mouse design reduced neck and shoulder problems in 2 trials. Alternative keyboards help keep your wrists straight, but there's no conclusive evidence that they prevent discomfort.
Phones and tech neck
Neck angle while textingEmerging evidence
In 396 adults followed for a year, the angle of the neck while texting didn't predict new neck pain, but poor sleep and low activity did. In 150 young adults, neck posture while texting wasn't linked with neck pain. Neck aches are common in people who use phones and tablets a lot; our tech neck guide covers what helps.
At your desk
Do two or three of these each hour without leaving your chair: 5 slow chin tucks, 3 to 5 upper-back lifts held 3 to 5 seconds, 6 slow rotations and 3 side bends each side, neck stretches held 20 to 30 seconds each side, 1 to 2 minutes of seated marching, and wrist stretches held about 30 seconds (the moves' own doses, except the chin tucks, which are our editorial starting point).
3D demoChin tuckBeginner · No equipment
3D demoSeated upper-back lift (sit tall, shoulders back)Beginner · A bench or box
3D demoThoracic rotationBeginner · No equipment
3D demoOverhead side bendBeginner · No equipment
3D demoUpper trap releaseBeginner · No equipment
3D demoLevator Scapulae StretchBeginner · No equipment
3D demoSeated marchBeginner · A bench or box
3D demoWrist flexor stretchBeginner · A wall
3D demoWrist extensor stretch (tennis elbow stretch)Beginner · No equipmentStanding breaks
Every 30 to 60 minutes, stand up and pick two or three: 8 to 10 sit-to-stands from a chair that can't roll, 10 to 15 calf raises, 30 to 45 seconds of marching, a chest stretch of about 30 seconds, a quad stretch of 30 to 45 seconds each side, 8 slow wall angels or a 2 to 5 minute walk (our editorial amounts, built on the activity-break trial).
3D demoSit to stand from a chairBeginner · A bench or box
3D demoSlow calf raiseBeginner · A wall
3D demoStanding marchBeginner · No equipment
3D demoDoorway chest openerBeginner · A wall
3D demoElbows backBeginner · No equipment
3D demoStanding Quad StretchBeginner · A wall
3D demoWall angelBeginner · A wall
3D demoTreadmill walkingBeginner · Cardio machineTwo minutes of desk strength
Keep a light band at your desk: 2 minutes of band lateral raises a day, 5 days a week, is the dose that cut neck and shoulder pain in office workers, and 2 sets of 12 to 15 rows, pull-aparts or face pulls, plus 10 wall push-ups, are our editorial additions.
Workouts to follow
Do the 3-minute desk break every 30 to 60 minutes, the 5-minute desk stretches twice a day and the upper-back routine after work; the walk after meals suits a lunch break.
3-minute desk movement break
A 3-minute standing break to repeat every 30 to 60 minutes at your desk: sit-to-stands, calf raises, marching, an upper-back turn and chin tucks.
3 minBeginner5 movesA bench or box, A wall5-minute desk stretches
A quick stretch break you can do beside your desk: neck, back, chest, wrists, hips and quads.
5 minBeginner7 movesA wall
Neck and shoulder stretches
Eight gentle neck and shoulder stretches for desk stiffness, done standing or seated in ten minutes.
10 minBeginner8 movesA wall
Wrist and forearm routine
Wrist mobility and forearm strength for desk work, climbing, push-ups and handstands.
10 minBeginner7 movesA wall, A dumbbell
Upper back mobility routine
A 12-minute routine for a stiff upper back and rounded shoulders: chin tucks, wall angels, Y-T-W raises and open books.
12 minBeginner8 movesA foam roller, A wall10-minute walk and move after meals
A 10-minute routine for straight after a meal: an easy walk, a few simple standing moves from blood sugar trials, then a short walk to finish.
10 minBeginner6 movesCardio machine, A bench or boxIf sitting hurts
Change position, and don't sit for too long
NHS inform advises against sitting or resting for too long. If you have to sit, change position regularly and find one that eases any pain in your back or legs.
Source 59
Comfort tips
An NHS hospital occupational therapy leaflet suggests that if your pain is at the base of your spine, sitting with your bottom slightly higher than your knees, on a wedge cushion, may be more comfortable, and a small rolled towel at the base of your back can help. These are comfort tips, not tested treatments.
Source 60
For specific pain
Our back pain, sciatica, neck pain and carpal tunnel guides cover those problems, with exercises and the warning signs to look out for.
Warning signs: when to see someone
Call 999 or go to A&E (911 in the US)
Get emergency help for any of these:
- Back pain with pain, tingling, weakness or numbness in both legs, loss of feeling around your genitals or anus, or changes in your bladder or bowels.
- Chest pain that comes on suddenly and doesn't go away, or spreads to your arm, neck, jaw, stomach or back, or comes with sweating, feeling sick, light-headedness or breathlessness.
- Pain and swelling in a leg with breathlessness or chest pain: a blood clot may have travelled to the lungs.
Get help the same day
Ask for an urgent GP appointment or contact NHS 111 for any of these:
- Throbbing pain and swelling in one leg, usually the calf or thigh, with red, blue or darkened skin or swollen veins: a possible blood clot (DVT).
- Back pain with feeling hot, cold, shivery or generally unwell, or severe pain that started suddenly or is getting worse quickly.
See a GP or physiotherapist
Book an appointment for any of these; in many areas you can contact NHS physiotherapy without seeing a GP first:
- Back or neck pain that hasn't improved after a few weeks, or stops your day-to-day activities.
- Neck pain with other symptoms, such as pins and needles or a cold arm.
Tired eyes or headaches
If screen work makes your eyes tired or gives you headaches, or makes you notice a change in your eyesight, have an eye test. UK employers must arrange and pay for one for screen users who ask.
Source 25
Sitting myths
"There's one correct way to sit, with everything at 90 degrees."Strong evidence
Physiotherapists don't agree on a best sitting posture, and OSHA counts leaning back among comfortable working positions. The advice now is to keep moving.
"A good chair prevents back pain."Mixed evidence
Workstation changes on their own haven't been shown to prevent neck, arm or back pain. Exercise has better evidence.
"Standing is healthier than sitting."Emerging evidence
Sit-stand desks help you sit less, but long spells of standing bring their own problems, from back symptoms to swollen legs. Mix the two, and move.
"Sitting on an exercise ball strengthens your core."Emerging evidence
In lab studies, ball sitting didn't meaningfully change muscle use or spine posture, and it was less comfortable.
"Sitting is the new smoking."Emerging evidence
Long hours of sitting are linked with worse health, but about an hour a day of moderate activity removed the extra risk of early death in more than a million people. The message is to sit less and move more.
"Screens damage your eyes."Strong evidence
Screen work can tire your eyes and cause headaches, but it doesn't cause permanent damage.
Source 25
Read next
Questions people ask
What is the best sitting posture?
Research hasn't found one: physiotherapists don't agree, and the Chartered Society of Physiotherapy says there is no perfect posture or right or wrong desk set-up. Sit in a way that feels comfortable and supported, and change position often.
How should I set up my desk?
The UK's Health and Safety Executive suggests the top of the screen level with your eyes and about an arm's length away, the keyboard just below elbow height, the mouse in line with your elbow, and your thighs and lower back supported, with a 2 to 3 cm gap between the seat edge and the back of your knee. OSHA in the US adds a screen distance of 50 to 100 cm and a footrest if your feet don't reach the floor. This makes you comfortable; on its own, it hasn't been shown to prevent aches.
How often should I get up from my desk?
No exact rule is proven, but short, frequent breaks are best: the Health and Safety Executive says 5 to 10 minutes every hour beats 20 minutes every 2 hours. The NHS advises getting up and moving around every hour or so. In people with type 2 diabetes, 3 minutes of light activity every 30 minutes lowered blood sugar after meals.
Is a standing desk better than sitting?
Sit-stand desks cut sitting at work by about an hour a day over 3 to 12 months and may ease low back discomfort a little. Standing all day isn't the answer: long spells of standing are linked with low back symptoms and raised discomfort in a lab study. Switch between the two, and keep moving.
Is sitting the new smoking?
That overstates it. Long hours of sitting are linked with more heart disease, type 2 diabetes and early death, and the WHO and UK guidelines say sit less and break it up. In over a million people, 60 to 75 minutes a day of moderate activity removed the extra death risk linked with sitting more than 8 hours a day.
Does the 20-20-20 rule work?
It's an optometrists' rule of thumb: every 20 minutes, look at something 20 feet (6 metres) away for 20 seconds. Reminders reduced eye-strain symptoms in a small study with no comparison group, but in a lab trial 20-second breaks made no difference. Screen work doesn't permanently damage your eyes, and UK employers must pay for an eye test for screen users who ask.
Do I need a lumbar support cushion?
Use one if it makes you more comfortable; UK and US workplace guidance suggests a cushion or a rolled towel if your chair doesn't support your lower back. Lumbar supports change how you sit a little, but they haven't been shown to prevent or treat back pain.
Is a kneeling chair or an exercise ball better than an office chair?
Not that research shows. Sitting on a ball didn't meaningfully change muscle use or spine posture, and people reported more discomfort. Kneeling chairs keep the lower-back curve closer to standing, but in a small trial people preferred an ordinary chair.
How should I sit with a laptop?
For long spells, use a separate keyboard and mouse with the laptop raised on a stand or books, or plug in a separate screen. With a laptop on their laps, people tilted their heads down and bent their wrists back more than at a desk. At home you may not need office furniture, as long as you can work comfortably and change position.
What exercises can I do at my desk?
Chin tucks, seated upper-back lifts, upper-back turns, neck and shoulder stretches, sit-to-stands, calf raises and marching all work without a mat. The best-tested option is a little strength work: 2 minutes a day with a resistance band, 5 days a week, reduced neck and shoulder pain in office workers. Our 3-minute desk break and 5-minute desk stretches are follow-along routines.
How should I sit if I have lower back pain?
Find a position that eases your pain, change it regularly, and avoid sitting for too long. Some people find a small cushion at the base of the back, or sitting with the hips slightly higher than the knees, more comfortable. If it isn't settling, see our back pain guide and its warning signs.
Why do my legs ache or swell when I sit all day?
Long spells of sitting still are one reason the NHS advises getting up and moving around every hour or so. Get urgent advice from NHS 111 or your GP for throbbing pain and swelling in one leg with red, blue or darkened skin, which could be a blood clot. Call 999 if you also have chest pain or feel short of breath.
Sources
- O'Sullivan 2012 · What do physiotherapists consider the best sitting spinal posture? (survey of 295, Manual Therapy)
- Korakakis 2019 · Physiotherapist perceptions of optimal sitting and standing posture (survey of 544, Musculoskeletal Science and Practice)
- Chartered Society of Physiotherapy · Working from home: easy exercises ("Your best posture is your next posture")
- Health and Safety Executive · Good posture when using display screen equipment
- Hoe 2018 · Ergonomic interventions for preventing neck and upper limb disorders in office workers (Cochrane review of 15 RCTs)
- Health and Safety Executive · Display screen equipment: work routine and breaks
- NHS · DVT (deep vein thrombosis)
- Shrestha 2018 · Workplace interventions for reducing sitting at work (Cochrane review)
- Agarwal 2018 · Sit-stand workstations and low back discomfort (systematic review and meta-analysis, Ergonomics)
- Coenen 2018 · Standing at work and musculoskeletal symptoms (systematic review and meta-analysis, BJSM)
- Chen 2018 · Workplace interventions for neck pain in office workers (systematic review and meta-analysis of 27 RCTs, Physical Therapy)
- Andersen 2011 · Small daily amounts of resistance training for frequent neck and shoulder pain (RCT, Pain)
- Health and Safety Executive 2013 · Working with display screen equipment: a brief guide (leaflet INDG36)
- OSHA · Computer workstations eTool: monitors
- Health and Safety Executive 2013 · Display screen equipment workstation checklist (CK1)
- OSHA · Computer workstations eTool: chairs
- OSHA · Computer workstations eTool: good working positions
- van Duijvenbode 2008 · Lumbar supports for preventing and treating low back pain (Cochrane review)
- OSHA · Computer workstations eTool: keyboards
- OSHA · Computer workstations eTool: pointer and mouse
- Jun 2017 · Physical risk factors for neck pain in office workers (systematic review and meta-analysis, International Archives of Occupational and Environmental Health)
- Asundi 2010 · Laptop use on a desk, the lap and a lap desk (lab study, Ergonomics)
- Health and Safety Executive · Working with display screen equipment at home
- Health and Safety Executive · Working safely with display screen equipment
- Health and Safety Executive · Display screen equipment: eyes and eyesight testing
- Claus 2009 · Is "ideal" sitting posture real? Spinal curves in four sitting postures (lab study, Manual Therapy)
- Slater 2019 · "Sit up straight": time to re-evaluate (viewpoint, JOSPT)
- Roffey 2010 · Occupational sitting and low back pain: a causal assessment (systematic review, The Spine Journal)
- Swain 2020 · No consensus that spine postures or physical exposures cause low back pain (review of systematic reviews, Journal of Biomechanics)
- Driessen 2010 · Physical and organisational ergonomic interventions for low back and neck pain (systematic review, Occupational and Environmental Medicine)
- Shariat 2018 · Stretching exercise and ergonomic changes for office workers' aches (RCT, Brazilian Journal of Physical Therapy)
- Luger 2019 · Work-break schedules for preventing musculoskeletal symptoms in healthy workers (Cochrane review)
- Waongenngarm 2018 · Breaks, low back pain, discomfort and productivity in office workers (systematic review, Applied Ergonomics)
- Galinsky 2000 · Extra rest breaks for data-entry workers (field study, Ergonomics)
- Dempsey 2016 · Breaking up sitting with light walking or simple resistance activities in type 2 diabetes (crossover trial, Diabetes Care)
- American Optometric Association · Computer vision syndrome (the 20-20-20 rule)
- Talens-Estarelles 2023 · Testing the 20-20-20 rule for digital eye strain (before-and-after study, Contact Lens and Anterior Eye)
- Johnson 2023 · The 20-20-20 rule: are these numbers justified? (lab crossover trial, Optometry and Vision Science)
- Edwardson 2018 · Sit-stand desks and coaching for NHS office workers: the SMArT Work trial (cluster RCT, BMJ)
- Thorp 2014 · Switching between sitting and standing every 30 minutes at work (randomised crossover trial, Occupational and Environmental Medicine)
- Ognibene 2016 · A sit-stand workstation for chronic low back pain (RCT, Journal of Occupational and Environmental Medicine)
- Baker 2018 · Two hours of standing computer work (lab study, Ergonomics)
- Smith 2018 · Standing and sitting jobs and heart disease over 12 years (cohort study, American Journal of Epidemiology)
- Buckley 2015 · The sedentary office: an expert statement (consensus statement, BJSM)
- Bull 2020 · World Health Organization 2020 guidelines on physical activity and sedentary behaviour (BJSM)
- UK Chief Medical Officers 2019 · UK Chief Medical Officers' physical activity guidelines
- Ekelund 2016 · Does physical activity offset the risks of sitting? (harmonised meta-analysis of more than 1 million people, Lancet)
- NHS · Benefits of exercise (sedentary lifestyles)
- Handa 2021 · Lumbar rolls and forward head posture when sitting (systematic review and meta-analysis, International Journal of Environmental Research and Public Health)
- Grondin 2013 · A lumbar support pillow during prolonged sitting (lab study, Chiropractic and Manual Therapies)
- McGill 2006 · Sitting on a chair or an exercise ball (lab study, Clinical Biomechanics)
- Gregory 2006 · Stability ball versus office chair during prolonged sitting (lab study, Human Factors)
- Kingma 2009 · Office chair versus exercise ball during computer work (lab study, Applied Ergonomics)
- Bettany-Saltikov 2008 · Kneeling chairs and the lower-back curve (lab study, Studies in Health Technology and Informatics)
- Lander 1987 · A kneeling chair compared with a conventional chair (randomised crossover study, Spine)
- Correia 2025 · Neck flexion while using a smartphone and new neck pain over 12 months (cohort study, Brazilian Journal of Physical Therapy)
- Damasceno 2018 · Text neck and neck pain in 18 to 21 year olds (cross-sectional study, European Spine Journal)
- Xie 2017 · Musculoskeletal complaints in users of mobile handheld devices (systematic review, Applied Ergonomics)
- NHS inform · Back problems
- Cambridge University Hospitals NHS 2024 · Seating and ergonomics (occupational therapy leaflet)
- NHS · Back pain
- NHS · Chest pain
- NHS · Neck pain
Exercise education, not a diagnosis or treatment plan, and clinical review of these guides is pending. Get a curve or hunch that is new or getting worse checked, above all in a growing child or after a fall, and get urgent help for numbness or weakness in the legs or a change in bladder or bowel control. Health disclaimer.