摘要
背景:临床上三维运动捕捉系统对临床诊疗方案确定及治疗效果的判断有着越来越重要的作用。目的:探讨意大利BTS红外运动捕捉系统在时空参数、运动学参数的信度。方法:选择28例青年志愿者,由评估者A和评估者B分别运用BTS三维运动捕捉系统对志愿者进行步态评估,记录下步速、步长、步宽、步频等时空参数及髋膝踝等在矢状面、水平面、冠状面的运动学参数,同一评估者行组内比较,两评估者进行组间比较,采用ICC进行信度分析。结果与结论:(1)除了骨盆活动、踝关节在水平面重测信度及测量者间信度稍差,其他如时空参数、髋膝关节3个平面运动活动幅度、踝关节矢状面、额状面上重测信度和测量者间信度具有较好的相关性(ICC>0.75);(2)结果提示,该红外运动捕捉系统除了骨盆活动、踝关节水平面活动信度相对较低,其余时空参数及运动学参数信度较高,可应用于大部分步态异常相关临床研究。
BACKGROUND： Three-dimensional motion capture system plays an increasingly important role in determining the program of treatment and checking the outcome of therapy in clinic. OBJECTIVE： To investigate the reliability of temporal-spatial parameters and kinematic parameters taken by three-dimensional（3D） motion capture system（BTS Bioengineering, Milan, Italy）. METHODS： Totally 28 young volunteers were recruited for gait analysis with 3D motion capture system by two evaluators, A and B. The parameters which consisted of speed, step length, step width, cadence and the angle of the pelvis, the hip, the knee and the ankle at sagittal, horizontal, and coronal planes were recorded. Data were compared within the group evaluated by the same evaluator, and data were compared among groups evaluated by two evaluators. The reliability was analyzed using ICC. RESULTS AND CONCLUSION：（1） Retest and interdetector reliability was poor in pelvic movement and ankle movement in the horizontal plane. The remaining parameters showed good correlation of the retest and interdetector reliability such as temporal-spatial and kinematic parameters, motion range at three planes, ankle sagittal, frontal planes within and between groups（ICC 〉 0.75）.（2） Results indicate that the temporal-spatial and kinematic obtained from BTS 3D motion capture has clinically acceptable intertrial repeatability, except the movement of pelvis and ankle in the horizontal plane. It can be used in clinical research in mostly abnormal gait analysis.
作者
郭永亮
冯重睿
张新斐
Guo Yong-liang;Feng Chong-rui;Zhang Xin-fei(Rehabilitation Training Center,Guangdong 999 Brain Hospital,Guangzhou 510510,Guangdong Province,China)
出处
《中国组织工程研究》
CAS
北大核心
2018年第23期3665-3669,共5页
Chinese Journal of Tissue Engineering Research
