Javadian Yahya, Behtash Hamid, Akbari Mohammad, Taghipour-Darzi Mohammad, Zekavat Hajar
Department of Physiotherapy, Babol University of Medical Sciences, Iran.
J Back Musculoskelet Rehabil. 2012;25(3):149-55. doi: 10.3233/BMR-2012-0321.
Lumbar segmental instability (LSI) is one of the subgroups of non-specific chronic low back pain. Pain, functional disability and reduced muscle endurance are common in such patients.
The aim of this study was to determine the effects of stabilization exercise on pain, functional disability and muscle endurance in patients with LSI.
A randomized clinical trial was carried out on 30 patients who had LSI aged between 18-45 years. They were divided into two groups; the control group underwent routine exercise only while the experimental group performed routine exercise plus stabilization training for 8 weeks. Both had 3 months follow-up. The variables included pain intensity, functional disability and flexion and extension range of motion and flexor, extensor and lateral flexor muscles endurance which were evaluated 3 times; before, post treatment and after three months. The data were analyzed using repeated measurement ANOVA.
The results revealed that after treatment, the trunk muscle endurance and flexion range of motion increased significantly and the pain intensity and functional disability decreased significantly in both groups; however the rate of improvement was significantly higher in the experimental group. The process of decreasing pain intensity and functional disability in addition to increasing muscle endurance time %was were significantly faster in the experimental group during the three months follow up.
Regarding the positive effects of stabilizing exercises with routine exercises in reduction of pain intensity, increasing functional ability and muscle endurance, it is recommended to use this method in treatment of patients with lumbar segmental instability.
腰椎节段性不稳定（LSI）是非特异性慢性下腰痛的亚组之一。此类患者常见疼痛、功能障碍和肌肉耐力下降。
本研究旨在确定稳定化训练对腰椎节段性不稳定患者疼痛、功能障碍和肌肉耐力的影响。
对30例年龄在18至45岁之间的腰椎节段性不稳定患者进行了一项随机临床试验。他们被分为两组；对照组仅进行常规锻炼，而实验组在8周内进行常规锻炼加稳定化训练。两组均随访3个月。变量包括疼痛强度、功能障碍以及屈伸活动范围和屈肌、伸肌及侧屈肌的肌肉耐力，在治疗前、治疗后和三个月后进行了3次评估。数据采用重复测量方差分析进行分析。
结果显示，治疗后，两组的躯干肌肉耐力和屈伸活动范围均显著增加，疼痛强度和功能障碍均显著降低；然而，实验组的改善率显著更高。在三个月的随访期间，实验组除了增加肌肉耐力时间百分比外，疼痛强度和功能障碍的降低过程明显更快。
鉴于稳定化训练与常规锻炼在降低疼痛强度、提高功能能力和肌肉耐力方面的积极作用，建议在治疗腰椎节段性不稳定患者时采用这种方法。
