Postural Stability during Standing in Subjects with L5 Radicular Syndrome

Authors: Z. Svoboda 1;  H. Bednáříková 1;  M. Janura 1;  E. Zemková 2
Authors‘ workplace: Katedra přírodních věd v kinantropologii, Fakulta tělesné kultury, Univerzita Palackého v Olomouci vedoucí katedry prof. RNDr. M. Janura, Dr. 1;  Katedra športovej kinantropológie, Fakulta telesnej výchovy a športu, Univerzita Komenského, Bratislava vedúcí katedry doc. MUDr. J. Lipková, Ph. D. 2
Published in: Rehabil. fyz. Lék., 23, 2016, No. 2, pp. 74-78.
Category: Original Papers


The number of scientific studies dealing with the postural stability in people with non-specific low back pain; however research of groups with specific diagnoses relating to similar symptoms is limited. The objective of this study was to assess the effect of L5 root syndrome on the postural stability during standing. The observed group consisted of 10 patients aged 41.1 ± 9.3 years diagnosed with L5 root syndrome and 12 healthy people aged 38.7 ± 11.2 years who formed the control group. Basic examination, which included visual inspection of pelvis and spine, spinal functional tests and testing of the deep stabilisation system, was carried out before the measurement started; research group was also tested for the root symptoms. Postural stability during standing with eyes open, eyes closed and standing on a narrow stand was assessed with the use of the Kistler force plate. The COP velocity in the experimental group was lower compared with the control group, which indicates a better level of postural stability. The COP velocity was higher on the affected side within the L5 root syndrome group and in non-dominant limb in healthy subjects. The results of the study showed that middle-aged people with root syndrome do not have impaired postural stability and also differences between limbs in the COP velocity are at a similar level as in the normal population.

intervertebral disc, force plates, centre of pressure, balance


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Physiotherapist, university degree Rehabilitation Sports medicine
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