Coda Motion运动分析系统测量健康人颈椎侧屈活动度的准确性分析

Validity study of Coda Motion Analysis System for measuring cervical lateral flexion in normal adults

目的:探讨Coda Motion运动分析系统测量颈椎侧屈活动度的准确性,为临床及科研实践探索一种新的测量工具。方法:选择43名健康志愿者作为研究对象,采用Coda Motion运动分析系统和"金标准"X线两种工具同时测量其颈椎侧屈活动度。运用散点图、皮尔森相关系数r评估Coda Motion运动分析系统测量颈椎侧屈活动度的准确性。结果:Coda Motion运动分析系统与X线测量出的颈椎侧屈活动度差异无统计学意义(P>0.05)。两种工具在测量右侧屈、左侧屈以及总侧屈活动度呈正相关,皮尔森相关系数分别为0.72、0.85和0.90。结论:Coda Motion运动分析系统测量颈椎侧屈活动度的准确性好,可能作为一种新型测量工具用于临床及科研测量颈椎侧屈活动度的实践中。

Objective：To investigate the validity of Coda Motion Analysis System for measuring cervical lateral flexion in normal adults in order to explore a new measuring tool for clinical and research practice. Methods ： A total of 43 participants were involved in the study. Cervical range of lateral flexion were measured with Coda Motion Analysis System and ＂gold standard＂ X-ray simultaneously. The validity and agreement were assessed using the scatter diagram, the Pearson con＇elation coefficient and limits of agreement. Results ： Cervical range of lateral flexion measured by Coda Motion Analysis System had no statistical differences with those measured by X-ray （P〉0.05）. The Coda Motion Analysis System demonstrated a very good linear relation with the X-ray measurements in cervical range of right lateral flexion, left flexion and total lateral flexion, and the Pearson correlation coefficients were 0.72,0.85 and 0.90 respectively. Conclusion：Coda Motion Analysis System showed good validity for measuring cervical lateral flexion in normal adults. Because the reliability of Coda Motion Analysis System was established previously, the results of this study suggest that the system has the potential to be used to measure cervical lateral flexion in clinical and research practice.