اثر و ماندگاري تمرينات ثبات عصبي عضلاني پويا بر درد، نمرات آزمون‌هاي عملكردي، عملكرد تنفسي و كيفيت زندگي افراد داراي كمردرد مزمن غيراختصاصي

Background and objective: Low back pain is a preva‎lent condition globally and is a leading cause of disability, resulting in negative health, social, and economic outcomes. In 85 to 90 percent of cases, the exact cause of low back pain cannot be definitively identified; therefore, patients are classified as having non-specific low back pain. Various treatments for low back pain have been prescribed, but overall, only mild to moderate effects have been reported. This may be due to a lack of precise understanding of the pathophysiology and the heterogeneity of the studied population. This study aims to examine the effects and durability of an 8-week dynamic neuromuscular stabilization (DNS) exercise program on pain, functional disability, functional test scores, respiratory function, and quality of life in individuals aged 30 to 50 with non-specific chronic low back pain. Methodology: This pre-test, post-test, and follow-up study included 36 men and women aged 30 to 50 with non-specific chronic low back pain, divided into a control group (18 participants) and an exercise group (18 participants). Pain intensity was measured using the Visual Analog Scale (VAS), functional disability using the Oswestry Disability Questionnaire, baseline functional movement using Functional Movement Screening (FMS) tests, respiratory function using a spirometer, and quality of life using the SF-36 questionnaire. Measurements were taken before and after the intervention, and again two months post-intervention to assess durability. The control group continued their routine activities, while the exercise group performed DNS exercises 3 times a week for 8 weeks. Data were analyzed using mixed ANOVA for repeated measures (P ≤ 0.05). Findings: A total of 29 participants (16 in the control group and 13 in the exercise group) completed the study. Results indicated improvements in pain (F(2,24) = 5.31, P = 0.01, η2 = 0.31), functional disability (F(2,24) = 4.17, P = 0.03, η2 = 0.26), quality of life (F(2,24) = 4.70, P = 0.02, η2 = 0.28), and baseline functional movement (F(2,24) = 10.99, P < 0.001, η2 = 0.48) in the exercise group post-test compared to pre-test. These changes were not significant in the control group (P > 0.05). Changes in respiratory function in both groups were also not significant (P > 0.05). Although the positive effects of the exercises on pain, functional disability, baseline functional movement, and quality of life slightly decreased after a two-month period without training, this decrease was not statistically significant (P > 0.05). Conclusion: Based on the findings, it can be concluded that an 8-week DNS exercise program can improve pain, functional disability, baseline functional movement, and quality of life in individuals with chronic low back pain, and that the positive effects may slightly decrease but remain statistically insignificant after a two-month period without training.

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