فهرست نشریات علمی دسترسی آزاد ایران

   Background and Objectives: Dynamic neuromuscular stabilization (DNS) is an exercise protocol that has recently attracted attention of many researchers in field of chronic pain control.Objectives: To investigate the effectiveness of DNS exercises on the thickness of core muscles and level of pain and disability in people with non-specific low back pain (NSLBP).   Methods: In a randomized clinical trial, 44 people with NSLBP with an age range between 30 and 50 years were randomly divided into two groups: intervention and control, with 22 in each group. The control group received routine physical therapy exercises, while the intervention group performed DNS exercises. The thickness of transverse abdominis and multifidus muscles was assessed during the abdominal hallowing maneuver and in the standing position using ultrasound. Pain and functional disability were assessed using the visual analog scale and Roland-Morris disability questionnaire, respectively. The outcomes were measured in both groups before and after 8 weeks of interventions.   Results: The results showed that after the 8-week intervention, the multifidus muscle thickness during muscle contraction and in the standing position, as well as transverse abdominis thickness in the standing position, were significantly greater in the DNS group compared to the control group (P<0.001). However, there was no significant difference in the TrA percentage thickness change during abdominal hallowing between the DNS and control groups. Additionally, pain and disability scores were significantly decreased in the DNS group compared to the control group after the intervention (P<0.001).   Conclusion: The study suggests that use of DNS exercises in people with NSLBP can help improve the activity level of core muscles and stability of lumbar vertebrae, which are both important components of physiotherapy goals for patients with NSLBP.