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Abstract：
Nowadays, due to lifestyle changes, the number of young people suffering from chronic non-specific low back pain (CNLBP) is gradually increasing. The recent guidelines for the treatment of low back pain emphasize that exercise therapy is the preferred treatment method for CNLBP. This study take ordinary college male students with CNLBP as objective of the study, focused into how core stability training affected the pain and muscle function of the CNLBP of youth. Herein, 60 male subjects were randomly divided into a control group and an experimental group, and conducted a randomized control trial in the Sports Rehabilitation Laboratory of Guangxi Normal University from September to October 2023. The control group received traditional waist strength training, while the experimental group received core stability training. VAS scores, pain symptoms scores and clinical efficacy grades were evaluated. Waist muscles fitness was evaluated, including back muscle strength, the prone upper body up\'s static holding time, 1-min modified sit-ups\' pcs, the supine abdominal curling\'s static holding time and the supine leg raising\'s static holding time. Waist movement function was also evaluated using oswestry disability index (ODI) questionnaire. Surface electromyographic (EMG) signals were collected from rectus abdominis, erector spinae and multifidus. The independent sample t-test was used to compare groups, and the paired sample t-test was used for the data comparison before and post-exercise within the group. The results of the study found that CNLBP was improved in both the experimental and control groups in the post-exercise. Compared to pre-exercise, there are significant decrease in the VAS scores (95%CI: 2.51 to 6.51, p = 0.000), pain symptoms scores (95%CI: 2.95 to 3.55, p = 0.000), waist movement function\'s evaluation scores for ODI (95%CI: 2.23 to 4.31, p = 0.000), rectus abdominis\' IEMG values (95%CI: 2.29 to 4.39, p = 0.000), erector spinae and multifidus\' IEMG values (95%CI: 2.18 to 4.45, p = 0.000) of experimental group in the post-exercise. Compared to pre-exercise, there are significant improvement in the back muscle strength (95%CI: 12.85 to 19.49, p = 0.000), the prone upper body up\'s static holding time (95%CI: 9.67 to 19.17, p = 0.000), the 1-min modified sit-ups\' pcs (95%CI: 8.56 to 18.12, p = 0.000), the supine abdominal curling\'s static holding time (95%CI: 6.73 to 19.14, p = 0.000), and the supine leg raising\'s static holding time (95%CI: 8.21 to 18.35, p = 0.000) of experimental group in the post-exercise. In the post-exercise,there are significant lower in the VAS scores (95%CI: 1.41 to 4.98, p = 0.000), pain symptoms scores (95%CI: 1.14 to 1.79, p = 0.011), waist movement function\'s evaluation scores for ODI (95%CI: 1.13 to 2.25, p = 0.000), rectus abdominis\' IEMG values (95%CI: 2.36 to 4.47, p = 0.000), erector spinae and multifidus\' IEMG values (95%CI: 2.24 to 4.23, p = 0.017) of experimental group than those of control group. In the post-exercise, there are significant higher in the recovery rate (p = 0.000), the prone upper body up\'s static holding time (95%CI: 4.16 to 8.32, p = 0.008), and the supine abdominal curling\'s static holding time (95%CI: 3.89 to 7.44, p = 0.000) of experimental group than those of control group. Therefore, it can be concluded that core stability training is significantly effective in treating CNLBP in youth, enhancing lower back muscle function. This therapeutic effect is primarily attributed to the improvement in muscle function.
摘要：
如今,由于生活方式的改变,患有慢性非特异性下腰痛（CNLBP）的年轻人数量逐渐增加。最近的下腰痛治疗指南强调运动疗法是CNLBP的首选治疗方法。本研究以普通高校男生CNLBP为研究对象,重点研究了核心稳定性训练如何影响青少年CNLBP的疼痛和肌肉功能。在这里，将60名男性受试者随机分为对照组和实验组,并于2023年9月至10月在广西师范大学运动康复实验室进行了随机对照试验。对照组采用传统腰力训练,实验组接受核心稳定性训练。VAS评分,评估疼痛症状评分和临床疗效分级.评估了腰部肌肉的健康状况，包括背部肌肉力量，俯卧的上半身向上的静态保持时间，1分钟修改仰卧起坐仰卧腹部卷曲的静态保持时间和仰卧腿部抬高的静态保持时间。还使用Othwestry残疾指数（ODI）问卷评估了腰部运动功能。从腹直肌收集表面肌电图（EMG）信号，直立脊髓和多裂。组间比较采用独立样本t检验，组内运动前后数据比较采用配对样本t检验。研究结果发现，运动后实验组和对照组的CNLBP均得到改善。与锻炼前相比，VAS评分显著下降(95CI：2.51至6.51，p=0.000)，疼痛症状评分（95CI：2.95至3.55，p=0.000），ODI的腰部运动功能评估得分（95CI：2.23至4.31，p=0.000），腹直肌IEMG值(95CI：2.29至4.39，p=0.000)，运动后实验组的直立脊髓和多裂IEMG值（95CI：2.18至4.45，p=0.000）。与锻炼前相比，背部肌肉力量显着改善（95CI：12.85至19.49，p=0.000），俯卧上身的静态保持时间（95CI：9.67至19.17，p=0.000），1分钟修改的仰卧起坐（95CI：8.56至18.12，p=0.000），仰卧腹部卷曲的静态保持时间（95CI：6.73至19.14，p=0.000），实验组运动后仰卧腿抬高的静态保持时间（95CI：8.21至18.35，p=0.000）。在练习后，VAS评分明显较低(95CI：1.41至4.98，p=0.000)，疼痛症状评分（95CI：1.14至1.79，p=0.011），ODI的腰部运动功能评估得分（95CI：1.13至2.25，p=0.000），腹直肌IEMG值(95CI：2.36至4.47，p=0.000)，实验组的竖脊肌和多裂肌IEMG值（95CI：2.24至4.23，p=0.017）高于对照组。在练习后，回收率显著更高(p=0.000)，俯卧上身的静态保持时间（95CI：4.16至8.32，p=0.008），实验组仰卧腹部冰壶的静态保持时间（95CI：3.89至7.44，p=0.000）优于对照组。因此,可以得出结论，核心稳定性训练在治疗青年CNLBP方面显着有效，增强下背部肌肉功能。这种治疗效果主要归因于肌肉功能的改善。
