Abstract：
OBJECTIVE: In today\'s industrialized world, between sixty and ninety percent of the working-age population experiences low back discomfort. Chronic mechanical low back pain (CMLBP), the most common ailment among working-age people in contemporary industrial society, causes a major economic burden due to the widespread use of medical services and the absence of work. For those suffering from persistent mechanical low back pain, this experiment aimed to assess the efficacy of using acupuncture dry needles in the short term.
METHODS: Our research included 30 individuals with nonspecific low back pain; their ages varied from 20 to 45. The participants were divided into two parallel groups using a random process: 15 individuals in group A had acupuncture treatment with a dry needle placed to specified locations on their backs, whereas 15 individuals in group B participated in muscle strengthening and stretching exercises. Both before and after therapy, researchers examined the lumbar range of motion (ROM) in four directions: flexion, extension, bilateral side bending, as well as pain intensity and functional impairment.
RESULTS: We examined the data for normality and covariance homogeneity using the Shapiro-Wilk and Box\'s tests, respectively. The variables of interest that were investigated were compared across various test groups and measurement periods using a 2x2 mixed design-multivariate analysis of variance (MANOVA). We used a significance threshold of 0.05. When comparing the two groups after treatment, it was found that the flexion and extension range of motion increased significantly (p<0.05), while the pain intensity, bending to the right and left, and functional impairment decreased significantly (p<0.05). The results of multiple pairwise comparisons showed a noteworthy difference in pain severity, functional debility, and back ROM between the two groups before and after treatment (p<0.05), with group A showing an advantage over group B after treatment.
CONCLUSIONS: Based on the study results, dry needle acupuncture may be a beneficial modality in treating chronic mechanical low back pain by relieving pain intensity, improving functional debility, and improving ROM.
METHODS: Our research included 30 individuals with nonspecific low back pain; their ages varied from 20 to 45. The participants were divided into two parallel groups using a random process: 15 individuals in group A had acupuncture treatment with a dry needle placed to specified locations on their backs, whereas 15 individuals in group B participated in muscle strengthening and stretching exercises. Both before and after therapy, researchers examined the lumbar range of motion (ROM) in four directions: flexion, extension, bilateral side bending, as well as pain intensity and functional impairment.
RESULTS: We examined the data for normality and covariance homogeneity using the Shapiro-Wilk and Box\'s tests, respectively. The variables of interest that were investigated were compared across various test groups and measurement periods using a 2x2 mixed design-multivariate analysis of variance (MANOVA). We used a significance threshold of 0.05. When comparing the two groups after treatment, it was found that the flexion and extension range of motion increased significantly (p<0.05), while the pain intensity, bending to the right and left, and functional impairment decreased significantly (p<0.05). The results of multiple pairwise comparisons showed a noteworthy difference in pain severity, functional debility, and back ROM between the two groups before and after treatment (p<0.05), with group A showing an advantage over group B after treatment.
CONCLUSIONS: Based on the study results, dry needle acupuncture may be a beneficial modality in treating chronic mechanical low back pain by relieving pain intensity, improving functional debility, and improving ROM.
摘要：
目标：在当今的工业化世界中，百分之六十至百分之九十的劳动年龄人口经历腰背不适。慢性机械性腰背痛（CMLBP），当代工业社会劳动年龄人群中最常见的疾病，由于医疗服务的广泛使用和缺乏工作，造成了重大的经济负担。对于那些患有持续性机械性腰痛的人，本实验旨在评估短期使用针刺干针的疗效。
方法：我们的研究包括30名患有非特异性下腰痛的个体，他们的年龄从20岁到45岁不等。使用随机方法将参与者分为两个平行组：A组中的15个人用干燥的针头放置在背部的指定位置进行针灸治疗，B组15人参加了肌肉强化和伸展运动。治疗前后,研究人员检查了四个方向的腰椎运动范围（ROM）：屈曲，扩展,双侧侧弯曲,以及疼痛强度和功能障碍。
结果：我们使用Shapiro-Wilk和Box检验检查数据的正态性和协方差同质性，分别。使用2x2混合设计-多变量方差分析（MANOVA），在各个测试组和测量周期中比较研究的感兴趣变量。我们使用0.05的显著性阈值。两组治疗后比较,发现屈曲和伸展运动范围显着增加（p<0.05），而疼痛的强度，向右和向左弯曲，功能损害显著减少(p<0.05)。多重成对比较结果显示疼痛严重程度有显著差异，功能衰弱，两组治疗前后的背部ROM(p<0.05),治疗后A组优于B组。
结论：根据研究结果，通过缓解疼痛强度，干针针刺可能是治疗慢性机械性腰背痛的有益方式，改善功能衰弱，改进ROM。
方法：我们的研究包括30名患有非特异性下腰痛的个体，他们的年龄从20岁到45岁不等。使用随机方法将参与者分为两个平行组：A组中的15个人用干燥的针头放置在背部的指定位置进行针灸治疗，B组15人参加了肌肉强化和伸展运动。治疗前后,研究人员检查了四个方向的腰椎运动范围（ROM）：屈曲，扩展,双侧侧弯曲,以及疼痛强度和功能障碍。
结果：我们使用Shapiro-Wilk和Box检验检查数据的正态性和协方差同质性，分别。使用2x2混合设计-多变量方差分析（MANOVA），在各个测试组和测量周期中比较研究的感兴趣变量。我们使用0.05的显著性阈值。两组治疗后比较,发现屈曲和伸展运动范围显着增加（p<0.05），而疼痛的强度，向右和向左弯曲，功能损害显著减少(p<0.05)。多重成对比较结果显示疼痛严重程度有显著差异，功能衰弱，两组治疗前后的背部ROM(p<0.05),治疗后A组优于B组。
结论：根据研究结果，通过缓解疼痛强度，干针针刺可能是治疗慢性机械性腰背痛的有益方式，改善功能衰弱，改进ROM。
