3 years ago

Seven cervical sensorimotor control tests measure different skills in individuals with chronic idiopathic neck pain

Rutger M.j. De Zoete, Peter G. Osmotherly, Darren A. Rivett, Suzanne J. Snodgrass

Publication date: Available online 11 November 2018

Source: Brazilian Journal of Physical Therapy

Author(s): Rutger M.J. de Zoete, Peter G. Osmotherly, Darren A. Rivett, Suzanne J. Snodgrass

Abstract
Background

Sensorimotor control is commonly reported in neck pain research and rapidly gaining interest in clinical practice. Joint position error (conventional and torsion), postural balance, subjective visual vertical, head tilt response, The Fly®, smooth pursuit neck torsion and head steadiness are tests that have been reported to assess cervical sensorimotor control. However, it is unknown whether clinicians could use one test, or a test battery, to appropriately assess cervical sensorimotor control and improve efficiency. Our main research question is: Do seven cervical sensorimotor control tests measure unique or similar characteristics of sensorimotor control in individuals with chronic idiopathic neck pain?

Methods

Principle components factor analysis. Data from seven cervical sensorimotor control tests of 50 participants with chronic idiopathic neck pain were included. Individual factors, potentially related to sensorimotor control, were determined by Eigen values >1.00 and inspection of a loading plot. Items with loadings ≥0.40 were considered satisfactory for inclusion in a factor.

Results

All cervical sensorimotor control tests were found to measure unique skills. Four factors were isolated with two, postural balance and head steadiness, accounting for most of the variance across tests. The remaining two factors, continuous movement accuracy and perceived verticality, contributed less to the observed variance.

Conclusion

Postural balance and head steadiness were the major underlying factors explaining cervical sensorimotor control in the current sample. However, our results imply that all seven tests are independent and measure different skills. It is not possible to recommend a test battery for clinical practice, as all tests measure unique skills which appear to be independent of each other.

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