Takahashi Kento, Tsubouchi Yuta, Abe Tetsutaro, Takeo Yuhi, Iwakiri Marino, Kataoka Takashi, Inoue Kohei, Sako Noriaki, Kataoka Masashi, Miyazaki Masashi, Kaku Nobuhiro
Department of Rehabilitation, Oita University Hospital, Oita 879-5593, Japan.
Division of Human Biology, Department of Health Science, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan.
Sensors (Basel). 2025 Jul 9;25(14):4265. doi: 10.3390/s25144265.
This study examined the relationship between spinal morphological changes and gait characteristics in patients with adolescent idiopathic scoliosis (AIS) using inertial measurement unit (IMU) analysis. Twenty-three female patients with AIS scheduled for corrective surgery underwent a preoperative gait analysis using an IMU positioned at the third lumbar vertebra. Gait stability indicators were calculated, including root mean square (RMS) values for mediolateral (RMSx), anteroposterior, and vertical components. Peak mediolateral components in four coronal plane quadrants were also analyzed. Relationships with the main thoracic (MT) curve, the thoracolumbar (TL) curve, and thoracic kyphosis (TK) were assessed using Spearman's rank correlation. The MT curve is positively correlated with RMSx, whereas TK exhibited a negative correlation. Gait symmetry analysis revealed a positive correlation between the MT curve and peak mediolateral trunk acceleration in the second (left upper) quadrant, and negative correlations for TK in the first (right upper) and fourth (right lower) quadrants. Patients with AIS who have right-convex MT curves demonstrated leftward center-of-gravity shifts, although reduced TK limited this compensatory mechanism. These findings may inform the development of rehabilitation strategies for AIS.
本研究采用惯性测量单元（IMU）分析，探讨青少年特发性脊柱侧凸（AIS）患者脊柱形态变化与步态特征之间的关系。23例计划接受矫正手术的AIS女性患者，使用置于第三腰椎的IMU进行术前步态分析。计算步态稳定性指标，包括内外侧（RMSx）、前后和垂直方向的均方根（RMS）值。还分析了四个冠状面象限中的内外侧峰值分量。使用Spearman等级相关性评估与主胸弯（MT）、胸腰弯（TL）和胸椎后凸（TK）的关系。MT曲线与RMSx呈正相关，而TK呈负相关。步态对称性分析显示，MT曲线与第二象限（左上）的内外侧躯干峰值加速度呈正相关，而TK在第一象限（右上）和第四象限（右下）呈负相关。右凸MT曲线的AIS患者表现出重心向左偏移，尽管TK减小限制了这种代偿机制。这些发现可能为AIS康复策略的制定提供参考。
