Benefits of Good Posture: 6 Claims Checked Against the Research

Good posture gets credit for a lot: less back pain, deeper breathing, more energy, a better mood, healthier joints, even better digestion. Some of that holds up. Some of it doesn’t have much behind it.

Here are six common claims, what the research says about each, and what to do instead of trying to sit up straight all day.

• Back and neck pain: posture plays a smaller part than most people think.
• Breathing: slumping reduces how much air you move while you are slumped. The effect is small.
• Mood and energy: sitting upright helped mood under stress in short lab studies.
• Ageing: in older adults with a rounded upper back, exercise improved posture.
• Arthritis: we found no study showing that posture on its own changes your risk.
• Digestion: we found no good evidence that sitting posture matters in healthy people.

1. Does good posture prevent back and neck pain?

Less than you would expect. A review of 41 systematic reviews found links between some spinal postures and low back pain, but no agreement that posture causes it [1].

The neck shows a similar pattern. In 1,108 seventeen-year-olds, four different ways of holding the neck while sitting carried the same odds of neck pain [2]. In adults, people with neck pain had more forward head posture than people without it, and more forward head posture went with more pain [3]. Those adult studies measured people once, so they can’t tell us whether the posture came first or the pain did.

So posture is one factor among several, alongside things like how strong you are, how much you move and how long you hold any one position. If your neck or back hurts, see our pages on neck and shoulder pain and back pain.

2. Does sitting up straight help you breathe?

Yes, in the moment, though the effect is small. In 70 healthy adults, slumped sitting reduced lung capacity and how fast they could breathe out, compared with normal sitting. Standing gave the highest readings of all [4].

It isn’t true for everyone. In a small study of 14 people with chronic obstructive pulmonary disease (COPD), lung function was the same whether they sat slumped or upright [5].

If you notice yourself breathing shallowly at your desk, stand up for a few minutes. That does more than forcing yourself into a rigid upright position.

3. Does good posture lift your mood and energy?

There’s some evidence for a small, short-term effect. In a trial of 74 adults, people whose backs were taped into an upright position during a stressful speaking task reported higher self-esteem, better mood and less fear than people taped into a slump [6].

A follow-up study in 61 people with mild to moderate depressive symptoms found that sitting upright during the same kind of task increased positive mood and reduced fatigue [7]. The authors called it preliminary.

Both were brief lab studies. They suggest that how you sit can nudge how you feel in a stressful moment. They don’t show that working on your posture treats low mood or tiredness. If your mood has been low for a while, talk to a doctor.

4. Does posture work help you age well?

This is where the evidence is strongest, for a specific group. A rounded upper back, called hyperkyphosis, becomes more common with age. A 2021 review of 24 studies in adults aged 45 and over with hyperkyphosis found that exercise improved the curve, with moderate certainty, and improved quality of life. The effect on falls was uncertain [8].

In one trial, 99 adults aged 60 and over with a rounded upper back were split into two groups. One group did spine-strengthening exercise and posture training with a physiotherapist, three times a week for six months. Their kyphosis angle improved by about 3 degrees more than the other group’s, and they felt better about how they looked. Physical function didn’t improve any more than in the other group [9].

The lesson is that strength work for the upper back can change posture, even later in life. It takes months of regular training. A posture cue alone won’t do it.

5. Does good posture prevent arthritis?

We found no study showing that sitting or standing a particular way lowers your risk of arthritis. The NHS lists the known risk factors for osteoarthritis as age, joint injury, obesity, family history, other joint conditions such as rheumatoid arthritis or gout, and being a woman [10].

The NHS does include good posture in its general advice on reducing the risk, together with regular exercise, keeping to a healthy weight and not staying in the same position for too long [10]. That is sensible advice, but it isn’t evidence that posture itself protects your joints.

The closest research is about heavy physical work. A WHO and ILO review found that spending 2 or more hours a day on demanding work, such as heavy lifting, kneeling or squatting, was linked to hip and knee osteoarthritis. The authors rated that evidence as limited [11]. That is very different from how you sit at a desk.

6. Does good posture improve digestion?

We found no good-quality studies showing that sitting up straight improves digestion in healthy people. The claim usually rests on the idea that slouching squashes your stomach and intestines. We couldn’t find research showing that this changes digestion.

Where position does matter is acid reflux, and the advice is about lying down after eating. The NHS suggests these steps [12]:

• Don’t eat within 3 or 4 hours of going to bed.
• Raise the head end of your bed by 10 to 20cm so your chest and head sit above your waist. Extra pillows can make it worse.
• Avoid clothes that are tight around your waist.
• Eat smaller, more frequent meals, and lose weight if you’re overweight.

See a doctor if you have heartburn most days, if pharmacy medicines and these changes aren’t helping, or if food gets stuck in your throat, you’re often sick or you’re losing weight for no reason [12].

What helps more than sitting up straight

There’s no single correct posture. Physiotherapists themselves mostly choose an upright one as ideal, yet there is no strong evidence that any one posture is healthier than the rest [13][14]. What has better support is this:

• Move more often. The WHO recommends cutting down on time spent sitting at every age, plus 150 to 300 minutes a week of moderate activity and muscle-strengthening work on at least two days a week [15]. In practice, get up at least once an hour: walk to a meeting, take the stairs, stand for calls.
• Get stronger. Across 7 trials with 627 people, exercise improved forward head posture and moderately reduced neck pain [16]. Strength work for the upper back and neck is the usual starting point.
• Fix the obvious desk problems. In a trial of 142 office workers, a stretching programme, on its own or with workstation changes, reduced neck, shoulder and lower back pain scores over six months compared with no treatment [17]. Raise your screen to around eye level and use a separate keyboard and mouse with a laptop.

For more on the habits that shape how you sit and stand, read everyday habits that could be affecting your posture. If you spend long days at a desk, our page on office syndrome covers desk set-up and break exercises. Companies can also book workplace ergonomic assessments for their teams.

When to get your posture checked

A quick posture check is part of your free first consultation at Aspire Physio Bangkok. A licensed physiotherapist looks at how you stand and move and tells you whether posture is likely to be part of your pain or stiffness. If you want the full picture, book a posture assessment, which covers standing and sitting posture, movement, strength and mobility tests, and ends with a corrective exercise plan.

See a doctor first if you notice signs of scoliosis, which the NHS lists as a visibly curved spine, leaning to one side, uneven shoulders, one shoulder or hip sticking out, the ribs sticking out on one side, or clothes that don’t fit well [18].

Book through our contact page or call 082-281-8009. We’re at Jasmine Building, 2nd Floor, Sukhumvit Soi 23, a short walk from Asok BTS.

Common questions

Does bad posture cause back pain?

Not on its own, as far as the research can show. A review of 41 systematic reviews found no agreement that spinal posture causes low back pain. Posture can be one factor alongside how strong you are, how much you move and how long you stay in one position.

What is the best sitting posture?

There is no single best posture. Physiotherapists tend to pick an upright one, but there is no strong evidence that any one posture is healthier than the others. Changing position often and getting up regularly matter more.

Can you improve your posture?

Yes. Exercise programmes have improved forward head posture and reduced neck pain, and spine-strengthening exercise has reduced a rounded upper back in older adults. How much yours changes depends on what is driving it.

Does posture affect breathing?

In the moment, a little. In a study of 70 healthy adults, slumped sitting reduced lung capacity and expiratory flow compared with normal sitting, and standing gave the highest readings. A small study in people with COPD found no difference between slumped and upright sitting.

References

1. Swain CTV, Pan F, Owen PJ, Schmidt H, Belavy DL. No consensus on causality of spine postures or physical exposure and low back pain: a systematic review of systematic reviews. J Biomech. 2020;102:109312. doi.org/10.1016/j.jbiomech.2019.08.006
2. Richards KV, Beales DJ, Smith AJ, O’Sullivan PB, Straker LM. Neck posture clusters and their association with biopsychosocial factors and neck pain in Australian adolescents. Phys Ther. 2016;96(10):1576-1587. doi.org/10.2522/ptj.20150660
3. Mahmoud NF, Hassan KA, Abdelmajeed SF, Moustafa IM, Silva AG. The relationship between forward head posture and neck pain: a systematic review and meta-analysis. Curr Rev Musculoskelet Med. 2019;12(4):562-577. doi.org/10.1007/s12178-019-09594-y
4. Lin F, Parthasarathy S, Taylor SJ, Pucci D, Hendrix RW, Makhsous M. Effect of different sitting postures on lung capacity, expiratory flow, and lumbar lordosis. Arch Phys Med Rehabil. 2006;87(4):504-509. doi.org/10.1016/j.apmr.2005.11.031
5. Landers MR, McWhorter JW, Filibeck D, Robinson C. Does sitting posture in chronic obstructive pulmonary disease really matter? An analysis of 2 sitting postures and their effect on pulmonary function. J Cardiopulm Rehabil. 2006;26(6):405-409. doi.org/10.1097/00008483-200611000-00011
6. Nair S, Sagar M, Sollers J, Consedine N, Broadbent E. Do slumped and upright postures affect stress responses? A randomized trial. Health Psychol. 2015;34(6):632-641. doi.org/10.1037/hea0000146
7. Wilkes C, Kydd R, Sagar M, Broadbent E. Upright posture improves affect and fatigue in people with depressive symptoms. J Behav Ther Exp Psychiatry. 2017;54:143-149. doi.org/10.1016/j.jbtep.2016.07.015
8. Ponzano M, Tibert N, Bansal S, Katzman W, Giangregorio L. Exercise for improving age-related hyperkyphosis: a systematic review and meta-analysis with GRADE assessment. Arch Osteoporos. 2021;16(1):140. doi.org/10.1007/s11657-021-00998-3
9. Katzman WB, Vittinghoff E, Lin F, et al. Targeted spine strengthening exercise and posture training program to reduce hyperkyphosis in older adults: results from the study of hyperkyphosis, exercise, and function (SHEAF) randomized controlled trial. Osteoporos Int. 2017;28(10):2831-2841. doi.org/10.1007/s00198-017-4109-x
10. NHS. Osteoarthritis. NHS website. www.nhs.uk/conditions/osteoarthritis/
11. Hulshof CTJ, Pega F, Neupane S, et al. The effect of occupational exposure to ergonomic risk factors on osteoarthritis of hip or knee and selected other musculoskeletal diseases: a systematic review and meta-analysis from the WHO/ILO Joint Estimates of the Work-related Burden of Disease and Injury. Environ Int. 2021;150:106349. doi.org/10.1016/j.envint.2020.106349
12. NHS. Heartburn and acid reflux. NHS website. www.nhs.uk/conditions/heartburn-and-acid-reflux/
13. Korakakis V, O’Sullivan K, O’Sullivan PB, et al. Physiotherapist perceptions of optimal sitting and standing posture. Musculoskelet Sci Pract. 2019;39:24-31. doi.org/10.1016/j.msksp.2018.11.004
14. Slater D, Korakakis V, O’Sullivan P, Nolan D, O’Sullivan K. “Sit up straight”: time to re-evaluate. J Orthop Sports Phys Ther. 2019;49(8):562-564. doi.org/10.2519/jospt.2019.0610
15. Bull FC, Al-Ansari SS, Biddle S, et al. World Health Organization 2020 guidelines on physical activity and sedentary behaviour. Br J Sports Med. 2020;54(24):1451-1462. doi.org/10.1136/bjsports-2020-102955
16. Sheikhhoseini R, Shahrbanian S, Sayyadi P, O’Sullivan K. Effectiveness of therapeutic exercise on forward head posture: a systematic review and meta-analysis. J Manipulative Physiol Ther. 2018;41(6):530-539. doi.org/10.1016/j.jmpt.2018.02.002
17. Shariat A, Cleland JA, Danaee M, Kargarfard M, Sangelaji B, Tamrin SBM. Effects of stretching exercise training and ergonomic modifications on musculoskeletal discomforts of office workers: a randomized controlled trial. Braz J Phys Ther. 2018;22(2):144-153. doi.org/10.1016/j.bjpt.2017.09.003
18. NHS. Scoliosis. NHS website. www.nhs.uk/conditions/scoliosis/