PDF(Pubmed)
Abstract：
Inertial measurement units (IMUs) offer a portable and quantitative solution for clinical movement analysis. However, their application in non-specific low back pain (NSLBP) remains underexplored. This study compared the spine and pelvis kinematics obtained from IMUs between individuals with and without NSLBP and across clinical subgroups of NSLBP. A total of 81 participants with NSLBP with flexion (FP; n = 38) and extension (EP; n = 43) motor control impairment and 26 controls (No-NSLBP) completed 10 repetitions of spine movements (flexion, extension, lateral flexion). IMUs were placed on the sacrum, fourth and second lumbar vertebrae, and seventh cervical vertebra to measure inclination at the pelvis, lower (LLx) and upper (ULx) lumbar spine, and lower cervical spine (LCx), respectively. At each location, the range of movement (ROM) was quantified as the range of IMU orientation in the primary plane of movement. The ROM was compared between NSLBP and No-NSLBP using unpaired t-tests and across FP-NSLBP, EP-NSLBP, and No-NSLBP subgroups using one-way ANOVA. Individuals with NSLBP exhibited a smaller ROM at the ULx (p = 0.005), LLx (p = 0.003) and LCx (p = 0.01) during forward flexion, smaller ROM at the LLx during extension (p = 0.03), and a smaller ROM at the pelvis during lateral flexion (p = 0.003). Those in the EP-NSLBP group had smaller ROM than those in the No-NSLBP group at LLx during forward flexion (Bonferroni-corrected p = 0.005), extension (p = 0.013), and lateral flexion (p = 0.038), and a smaller ROM at the pelvis during lateral flexion (p = 0.005). Those in the FP-NSLBP subgroup had smaller ROM than those in the No-NSLBP group at the ULx during forward flexion (p = 0.024). IMUs detected variations in kinematics at the trunk, lumbar spine, and pelvis among individuals with and without NSLBP and across clinical NSLBP subgroups during flexion, extension, and lateral flexion. These findings consistently point to reduced ROM in NSLBP. The identified subgroup differences highlight the potential of IMU for assessing spinal and pelvic kinematics in these clinically verified subgroups of NSLBP.
摘要：
惯性测量单元(IMU)为临床运动分析提供了便携式定量解决方案。然而,它们在非特异性下腰痛（NSLBP）中的应用仍未充分开发。这项研究比较了在有和没有NSLBP的个体之间以及NSLBP的临床亚组之间从IMU获得的脊柱和骨盆运动学。共有81名NSLBP伴屈曲（FP；n=38）和伸展（EP；n=43）运动控制障碍和26名对照（No-NSLBP）的参与者完成了10次重复的脊柱运动（屈曲，扩展,侧屈)。IMU被放在骶骨上，第四和第二腰椎，和第七颈椎来测量骨盆的倾斜度，下（LLx）和上（ULx）腰椎，和下颈椎（LCX），分别。在每个位置，将运动范围(ROM)量化为IMU在主运动平面中的取向范围.使用非配对t检验和跨FP-NSLBP比较NSLBP和No-NSLBP之间的ROM，EP-NSLBP,和无NSLBP亚组使用单向方差分析。具有NSLBP的个体在ULx处表现出较小的ROM(p=0.005)，在前屈时LLx(p=0.003)和LCx(p=0.01),扩展期间LLx处的ROM较小（p=0.03），在侧屈时骨盆的ROM较小（p=0.003）。在前屈时LLx，EP-NSLBP组的ROM小于No-NSLBP组的ROM（Bonferroni校正p=0.005），扩展（p=0.013），和侧屈（p=0.038），在侧屈时骨盆的ROM较小（p=0.005）。在前屈时，FP-NSLBP亚组的ROM小于No-NSLBP组的ROM（p=0.024）。IMU检测到躯干运动学的变化，腰椎,在屈曲期间，有和没有NSLBP的个体和临床NSLBP亚组之间的骨盆，扩展,和侧屈。这些发现一致地指出NSLBP中的ROM减少。确定的亚组差异突出了IMU在这些经临床验证的NSLBP亚组中评估脊柱和骨盆运动学的潜力。
