تأثيـر 8 هفته تمرينات ثبات عصبي عضلاني پويا بر ميزان درد، فعاليت الكترومايوگرافي عضلات كمر، ناتواني عملكردي و كيفيت زندگي مردان مبتلا به كمر درد مزمن غير اختصاصي

Effect of 8 weeks of Dynamic Neuromuscular Stabilization on pain, electromyography activity of lumbar muscles, functional disability an‎d quality of life in male with chronic low back pain

آسيب شناسي و حركات اصلاحي

Introduction: Low back pain (LBP) is a preva‎lent musculoskeletal issue, affecting 4 to 33 percent of people across different age groups. This condition can severely affect an individual’s quality of life an‎d may lead to disability. Non-specific low back pain is characterized by pain that does not have an identifiable underlying cause. Research indicates that 84 percent of people will experience low back pain at least once in their lives, with 23 percent developing chronic low back pain, an‎d 12 percent experiencing significant limitations in their ability to perform daily tasks. This study aimed to eva‎luate the effects of 8 weeks of Dynamic Neuromuscular Stabilization (DNS) exercises on pain intensity, electromyographic activity of lumbar muscles, functional disability, an‎d quality of life in individuals suffering from chronic non-specific low back pain. Methodology: This applied an‎d semi-experimental study was conducted in a pre-test an‎d post-test format. A total of 30 patients were purposefully selec‎ted an‎d ran‎domly divided into two groups based on their pain levels: the DNS training group (15 individuals, mean height = 167.9 ± 2.24 cm, weight = 63.9 ± 2.94 kg, age = 53.7 ± 4.19 years) an‎d the control group (15 individuals, mean height = 169.4 ± 3.14 cm, weight = 66.6 ± 2.24 kg, age = 54.2 ± 1.17 years). The experimental group followed the DNS exercise protocol for 8 weeks, with three sessions per week. Before an‎d after the training period, pain intensity was assessed using the Quebec Pain Questionnaire, functional disability was measured using the Oswestry Disability Index, an‎d quality of life was eva‎luated using the SF-36 questionnaire. Electromyographic activity of lumbar muscles was measured using an 8-channel MegaWin surface electromyography device. Data were analyzed using repeated-measures ANOVA at a significance level of P ≤ 0.05. Findings: The findings of this study showed that after the 8-week DNS training protocol, significant improvements were observed in the electromyographic activity of the rectus abdominis muscle (P=0.000), the erector spinae muscle (P = 0.002), an‎d the gluteus maximus muscle (P=0.002). Additionally, reductions in functional disability (P= 0.02) an‎d improvements in quality of life (P = 0.02) were recorded. Conclusion: Given the positive impact of DNS exercises on the variables examined, it is recommended that rehabilitation specialists, therapists, an‎d trainers incorporate these exercises into their treatment plans to enhance the quality of life for individuals with chronic non-specific low back pain.

5

160845