Discussion
decreased disability, disability, pain
Our findings suggest that a specific program based on re-education exercises on the preactivation of the transverse abdominal muscle significantly reduces disability and increases the activation capacity of the transverse abdominal muscle in the short term compared to a conventional treatment that includes education about lumbar symptoms, recommendations to be active and pharmacological prescriptions, in adults with CNLBP.Our results showed no statistically significant differences between the two groups for pain intensity measured with the VAS. This result is in contrast with the literature. A recent systematic review with meta-analysis and meta-regression showed low to moderate quality evidence of a sustainable positive effect of motor control exercise on pain intensity [The experimental group had significantly decreased disability measured with the RMQ scale compared to the control group. These results are consistent with a meta-analysis [Regarding the activation of the transverse abdominal muscle using the PBU, our results showed a statistically significant difference in favor of the experimental group. Several studies [Comparing the results obtained from the PBU and the US regarding the activation of the TrA, both measures showed a significant correlation. However, although the results obtained with the PBU are significantly increased in favor of the experimental group, the results of the US are not statistically significant. As mentioned, some evidence shows that the PBU is not a valid tool for measuring TrA activation [Finally, there were no statistically significant differences between the two groups for the thickness and resistance of the transverse abdominal muscle as measured by US and EMG, respectively. These results are in contrast with the literature. In a similar study [The literature generally establishes that greater activation of the transverse abdominal muscle occurs when we work with suspension training systems or perform CORE stabilizing exercises [Finally, in our study, we have conducted an intention to treat analysis. This method analyzes patients according to the groups they were initially assigned and randomized. For some authors, this method preserves the prognostic balance that randomization offers [