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1 Acta of Bioengineering and Biomechanics

1 1999

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Postural stability in patients with back pain

Kuczyński M., Paluch P.

Acta of Bioengineering and Biomechanics

1999

Vol. 1, nr 2

19-23

30 patients with back pain were subjected to stabilographic investigations in order to disclose possible loss in their postural stability system (PSS). Basing on traditional parameters we can discriminate only the most acute group with 'unbearable' pain from other patients. On the other hand, the autoregressive (AR) approach allowed us to find meaningful differences also between patients with moderate level of pain and the control group. The results indicate that AR modelling produces the opportunity to evaluate physiological and biomechanical parameters characterising the operation of the neuro-muscular system (NMS) responsible for human balance. Those parameters are much more sensitive to the level of mal-function of the stability system, presenting more accurate and differentiated picture of individual cases. It confirms the power of AR-based reasoning and gives new insight into the operation of the PSS.