Department of Medical Surgical-Therapy, Medicine Faculty, Extremadura University, Badajoz, Spain.
Department of Medical Surgical-Therapy, Medicine Faculty, Extremadura University, Badajoz, Spain.
Musculoskelet Sci Pract. 2021 Jun;53:102370. doi: 10.1016/j.msksp.2021.102370. Epub 2021 Mar 24.
Nonspecific chronic low back pain (NSCLBP) is one of the most common and frequent health problems. OBJETIVE: to compare postural control (i.e. center of pressure (CoP) displacement and energy spectral density (ESD)) using technological devices (accelerometers and pressure platform) between subjects with NSCLBP and healthy subjects.
A cross-sectional case-control study was conducted. Observational study (STROBE). The final sample consisted of 60 subjects (30 NSCLBP subjects and 30 healthy subjects). Triaxial accelerometer and pressure platform were used in order to obtain ESD and CoP displacement measurements during four balance tasks (i.e. with and without vision and on stable versus unstable surface). Independent t tests were used to compare participants with NSCLBP and healthy controls in the two clinical measurements (i.e., CoP displacement and ESD) for the four balance tests. A multivariate analysis of variance (MANOVA) together with a Fisher's linear discrimination was applied in order to categorize NSPLBP.
Patients with NSCLBP showed greater CoP migration in the positions eyes open, stable surface on the anteroposterior axis (p = 0.012), eyes closed, stable surface on the mediolateral axis (p = 0.025), eyes closed, stable surface on the anteroposterior axis (p = 0.001), eyes open, unstable surface on the anteroposterior axis (p = 0.040), eyes closed, unstable surface on the anteroposterior axis (p = 0.015). Also the ESD was significantly greater for the four situations described (p ≤ 0.01) in subjects with NSCLBP.
Accelerometer appears to be a technological device that could offer a potential benefit within the battery of tests on physical performance among subjects with NSCLBP and healthy subjects.
非特异性慢性下腰痛（NSCLBP）是最常见和最频繁的健康问题之一。目的：比较使用技术设备（加速度计和压力平台）在 NSCLBP 患者和健康受试者之间的姿势控制（即压力中心（CoP）位移和能量谱密度（ESD））。方法：进行了一项横断面病例对照研究。观察性研究（STROBE）。最终样本包括 60 名受试者（30 名 NSCLBP 受试者和 30 名健康受试者）。使用三轴加速度计和压力平台在四项平衡任务（即有和无视觉以及稳定和不稳定表面）中获得 ESD 和 CoP 位移测量值。独立 t 检验用于比较 NSCLBP 患者和健康对照组在四项平衡测试中的两个临床测量值（即 CoP 位移和 ESD）。应用多变量方差分析（MANOVA）和 Fisher 线性判别对 NSPLBP 进行分类。结果：NSCLBP 患者在睁眼、稳定表面前-后轴（p=0.012）、闭眼、稳定表面中-外侧轴（p=0.025）、闭眼、稳定表面前-后轴（p=0.001）、睁眼、不稳定表面前-后轴（p=0.040）、闭眼、不稳定表面前-后轴（p=0.015）时 CoP 迁移更大。ESD 在描述的四种情况下也显著更大（p≤0.01）在 NSCLBP 患者中。结论：加速度计似乎是一种技术设备，可在 NSCLBP 患者和健康受试者的身体表现测试组合中提供潜在益处。
