J Sport Rehabil. 2019 Dec 9;29(7):942-951. doi: 10.1123/jsr.2019-0058. Print 2020 Sep 1.
Chronic low back pain (CLBP) often presents with a dysfunction in deep abdominal muscles activity during standing tasks. Although some studies indicated that deep abdominal muscle activity improved during some functional tasks following stabilization exercise (SE), there is no study to evaluate the effect of SE on lateral abdominal muscles thickness during standing postural tasks.
The purpose of this study was (1) to evaluate the lateral abdominal muscles thickness in the participants with CLBP while standing on a balance board and (2) to compare the effects of SE and a general exercise (GE) program on the lateral muscles thickness changes.
This was a between-groups, triple-blinded randomized controlled trial design. In total, 40 females with CLBP were randomly assigned into 2 groups: GE (control group) and supervised progressive SE (experimental group). Diagnostic ultrasound imaging was used before and after the intervention to measure lateral abdominal muscles thickness during standing on 2 different levels of platform in the Biodex Balance System. Visual analog scale and Roland-Morris Disability Questionnaire were used to evaluate changes in pain intensity and disability.
The results indicated significant increases in transverse abdominis muscle thickness during all standing tasks (P = .02) and significant decreases in pain intensity and disability following SE intervention (P < .001). However, the lateral abdominal muscle thicknesses were not changed after GE intervention while standing postural tasks (P > .05). The GE group revealed only significant decreases in pain intensity after intervention (P = .03).
Supervised progressive SE improved the activity of deep abdominal muscles in standing postural tasks in the patients with CLBP.
慢性下腰痛（CLBP）常表现为站立任务时深层腹肌活动功能障碍。虽然一些研究表明，在稳定训练（SE）后进行某些功能性任务时，深层腹肌活动会得到改善，但目前尚无研究评估 SE 对站立姿势任务中侧腹肌厚度的影响。
本研究旨在（1）评估 CLBP 患者在平衡板上站立时侧腹肌的厚度，（2）比较 SE 和一般运动（GE）方案对侧肌厚度变化的影响。
这是一项分组、三盲随机对照试验设计。共有 40 名 CLBP 女性被随机分为 2 组：GE（对照组）和监督性渐进 SE（实验组）。在 Biodex 平衡系统上的 2 个不同平台高度站立时，使用诊断超声成像在干预前后测量侧腹肌厚度。视觉模拟评分和 Roland-Morris 残疾问卷用于评估疼痛强度和残疾的变化。
结果表明，所有站立任务中横腹肌厚度均显著增加（P =.02），SE 干预后疼痛强度和残疾显著降低（P <.001）。然而，GE 干预后站立姿势任务时侧腹肌厚度没有变化（P >.05）。GE 组仅在干预后疼痛强度显著降低（P =.03）。
监督性渐进 SE 改善了 CLBP 患者站立姿势任务中深层腹肌的活动。
