Association between clinical tests related to motor control dysfunction and changes in pain and disability after lumbar stabilization exercises in patients with chronic low back pain

Publication date: Available online 26 February 2019

Source: Archives of Physical Medicine and Rehabilitation

Author(s): Crystian B. Oliveira, Rafael Z. Pinto, Siobhan M. Schabrun, Marcia R. Franco, Priscila K. Morelhão, Fernanda G. Silva, Tatiana M. Damato, Ruben F. Negrão Filho

Abstract

Objective

To investigate whether clinical tests used to detect motor control dysfunction can predict improvements in pain and disability in patients with chronic nonspecific LBP who have undergone an 8-week lumbar stabilization exercise program.

Study design

A prospective cohort study.

Setting

Outpatient physical therapy university clinic.

Participants

Seventy people with chronic nonspecific LBP were recruited, and 64 completed the exercise program.

Interventions

The lumbar stabilization program was provided twice a week for eight weeks.

Main outcome measure(s)

Pain intensity (11-point numerical rating scale) and disability (Roland Morris Disability Questionnaire) and clinical tests, such as the Deep Muscle Contraction scale, Clinical Test of Thoracolumbar Dissociation and Passive Lumbar Extension test. Univariate and multivariate linear regression models were used in the prediction analysis.

Results

Mean changes in pain intensity and disability following the 8-week stabilization program were -3.8 (95% CI: -3.2 to -4.4) and -7.4 (95% CI: -6.3 to -8.5), respectively. Clinical test scores taken at baseline did not predict changes in pain and disability at 8-week follow-up.

Conclusion

Our findings revealed that the DMC scale, CTTD, PLE test, clinical tests used to assess motor control dysfunction, do not predict improvements in pain and disability in patients with chronic non-specific LBP following an 8-week lumbar stabilization exercise program.

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