在对人体运动进行运动学或者动力学分析的时候,通常需要对各关节建立局部坐标系,而目前大部分人体关节坐标系定义方法都主要针对临床应用,需要具备专业的解剖学知识且可操作性差.本文首先描述了下肢的主要解剖学特征点,并通过这些特征点构建了髋关节、膝关节及踝关节坐标系,提出了定义人体关节坐标系的基本原则.通过利用运动捕捉系统对自愿者步态过程中的下肢运动轨迹进行采集,分析构建坐标系的特征点在运动过程中空间相对位置的不变性,说明了文章提出的下肢关节坐标系定义方法在一定范围内是合理的.

1. Wu G,et al.ISB recommendation on definitions of joint coordinate system of various joints for the reporting of human joint motion-part I:ankle,hip,and spine.Journal of Biomechanics,2002,35(4):543-548.
2. Nigg B,Herzog W,Biomechanics of the musculo-skeletal system.New York:Wiley,1994.
3. van Sint Jan S.Color atlas of skeletal landmark definitions-Guidelines for reproducible manual and virtual palpations.Churchill-Livingstone-Elsevier,2007.
4. 高士濂.实用解剖学图谱下肢分册.上海:上海科学技术出版社,2004.
5. Cappozzo A,et al.Position and orientation in space of bones during movement:anatomical frame definition and determination.Clinical Biomechanics,1995,10(4):171-178.
6. Cappozzo A.Gait analysis methodology.Human Movement Science,1984.3:27-50.
7. Leardini A,et al.Validation of a functional method for the estimation of hip joint centre location.Journal of Biomechanics,1999,32(1):99-103.
8. Bell A,Pedersen D,Brand R.A comparison of the accuracy of several hip center location prediction methods.Journal of Biomechanics,1990,23(6):617.
9. Davis R,et al.A gait analysis data collection and reduction technique.Hum Mov Sci,1991,10(5):575-587.
10. Seidel G,et al.Hip joint center location from palpable bony landmarks-a cadaver study.Journal of Biomechanics,1995,28(8):995-998.