Stiff Back or Just a Feeling?

Stiff back is a common complaint, but it could also be one of our protective bodily feelings that helps us avoid actual straining of the back.

Stiff back is a common complaint. However, a study at the University of Alberta's Faculty of Rehabilitation Medicine found that it is one of our bodily feelings which helps us avoid things that can strain our back. According to this study, people who complain of stiff back do not have actual physical symptoms.//

"A conscious experience of feeling stiff does not reflect true biomechanical back stiffness," explained Greg Kawchuk, professor and back and spine expert in the Department of Physical Therapy. "When we use the same word, stiffness, to describe a feeling and how we measure actual stiffness, we assume these words are describing the same thing. But that is not always the case."

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‘A conscious experience of feeling stiff does not reflect true biomechanical back stiffness.’

In the study, Kawchuk and his team asked participants how stiff their backs felt to them. After that, using a customized device, they measured just how stiff the back actually was.

"There was no relation between biomechanical stiffness and the reported feeling of stiffness," he said. "What people describe as stiffness is something different than the measurement of stiffness."

Tasha Stanton, lead author and senior research fellow of pain neuroscience at the University of South Australia, said that the feeling of stiffness may be a protective construct that is created by our nervous system.

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"It's our body's way of protecting ourselves, possibly from strain, further injury or more pain," she said.

With lower back pain being the leading cause of disability worldwide affecting approximately 632 million people, it is important to examine mechanisms associated with lower back pain and its symptoms, including stiffness.

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"Words are important. The words patients use to describe a problem in the clinic may not be the same thing we as clinicians measure in the clinic," said Kawchuk. "We need to find out what it means exactly when someone says they have a stiff back. We now know it might not mean that their back is mechanically stiff.

It could mean they feel their movements are slower and more painful."

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Source-Eurekalert