Purpose: The aim of the current study was to investigate the differences of erector spinae EMG activity measurements on patients presenting NSLBP, after the implementation of a 3-week trunk stabilization exercise program.Methodology: Fifty AKMI Metropolitan College (AMC) students with NSLB were recruited and were randomly assigned to either an exercise group or a control group. Information regarding LBP prevalence were obtained by using the Nordic Questionnaire. The participants in the exercise group performed a trunk stabilization program consisting of 6 low load activation exercises, for a duration of 3 weeks and with a frequency of 5 times per week. Electromyographic (EMG) activity of erector spinae was recorded bilaterally, using surface EMG, during four different phases in the beginning of the study and 3 weeks later.Results: Significant differences were revealed on the EMG activity for the exercise group's pre and post measurements as well as exercise post and control post in the full trunk flexion position (p<0.0001). Similarly, significant differences for the exercise group pre and post measurements in FRR (p<0.0001) were observed.
Conclusions:The findings of the current study indicate that a 3 week stabilization exercise can facilitate the reduction of full flexion position and the improvement of FRP by amending erector spinae muscular alterations in patients with NSLBP.