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'Sit up straight' - time to re-evaluate.
Despite common posture beliefs, there is no strong evidence that one optimal posture exists or that avoiding ‘incorrect’ postures will prevent back pain.
There are natural variations in spinal curvatures and there is no single spinal curvature strongly associated with pain. Pain should not be attributed to relatively ‘normal’ variations.
Posture can offer insights into a person’s emotions, thoughts and body image. Some postures are adopted as a protective strategy and may reflect concerns regarding body vulnerability. Understanding the reasons behind preferred postures can be helpful.
Comfortable postures vary between individuals. Exploring different postures, including those frequently avoided, and changing habitual postures may provide symptomatic relief.
The spine is a robust, adaptable structure, capable of safely moving and loading in a variety of postures. Common warnings to protect the spine are not evidence-informed and can lead to fear.
Sitting down for more than 30 mins in one position is not dangerous. However, moving and changing positions can be helpful, and being physically active is important for your health.
Postural and movement screening does not prevent pain in the workplace. Preferred lifting styles are influenced by the naturally varying spinal curvatures and advice to adopt a specific posture or to brace the core is not evidence based.
Content adapted from a summary provided by South Tees Hospitals NHS Foundation Trust.
Reference: Slater D, Korakakis V, O’Sullivan P, Nolan D and O’Sullivan K. ‘Sit Up Straight’: Time to Re-evaluate. J Orthop Sports Phys Ther 2019;49;562-564