Experimental Research for Motion Ranges of Knee Joints

摘要

To investigate the range of motion (ROM) of knee joints in the human body, the difference of ROMs between man and woman in subgroups, and how the difference of ROMs relates to age itself; One hundred healthy volunteers of ages 18-60 were recruited to complete the study. They were divided into two groups, with half of them male. The VICON motion capture system was used to measure ROMs of knee joint. The average value of knee joint ROMs for two groups was calculated. The changes in the ROM for two groups were compared along with the differences in the ROM between male and female, and between the left and right knee joints. ROMs of knee joints decreased as the age increased. The difference between the ROMs in the two groups was not significant. Female ROMs of knee joints were bigger than the male in the same age group.