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Clinical Trial Summary

Dr. Macedo and others involved in the proposed research recently conducted a study that investigated whether simple clinical characteristics could identify patients who benefit more from either motor control exercises or graded activity. Results were statistically significant and clinically relevant demonstrating that a simple questionnaire could help aid the selection of the most appropriate exercise therapy for each individual patient. Therefore, we aim to conduct a randomized controlled trial following a similar approach to the original study to validate in a different sample the results of the effect modification analysis.


Clinical Trial Description

Dr. Macedo and others involved in the proposed research recently conducted a study that investigated whether simple clinical characteristics could identify patients who benefit more from either motor control exercises or graded activity. Motor control exercises (sometimes called lumbar stabilization exercises) and graded activity using the principles of cognitive behavioral therapy are two popular forms of exercise therapy with evidence of effectiveness from high quality systematic reviews, but no evidence for superiority of one approach over the other when tested in heterogenous populations. The results of a previously published study demonstrated that a simple 15-item questionnaire (Lumbar Spine Instability (LSI) Questionnaire) could identify patients who responded best to either motor control exercise or graded activity (interaction 2.72 95% CI 1.39 to 4.06, p=0.001). The results demonstrated that for people who are LSI negative, graded activity provided a much better outcome than motor control exercise one year post-intervention (a statistically and clinically significant improvement of 1.96 points on a 0-10 numeric function scale; p< 0.001). In people who were LSI positive, motor control exercise provided slightly better outcomes, compared to those prescribed motor control exercises. It is important to note that this study was measuring differences between treatments groups, and thus change in the scores of function presented represent differences between groups.

However, although this clinical decision rule has the potential to transform exercise treatment for LBP, especially given the relatively large interaction effects found, validation in an independent sample is essential before recommending use in clinical practice.There are three recognized steps in developing clinical decisions rules: derivation, validation and impact evaluation. Dr. Macedo's previous study falls within the first step of this process and the proposed study aims to address the second step; validation.

Therefore, the objective of this study is to conduct a randomized controlled trial following a similar approach to the original study to validate in a different sample the results of the effect modification analysis to identify baseline characteristics that predict/modify response to treatment. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03327753
Study type Interventional
Source McMaster University
Contact
Status Completed
Phase N/A
Start date January 10, 2017
Completion date December 2018

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