Investigation of the development of inter-joint coordination during locomotion tasks by combining two different coordination analysis methods

• Main Authors: Po-YuLin, 林泊宇
• Other Authors: Rong-Ju Cherng
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/46478175578960254346

碩士 === 國立成功大學 === 物理治療學系 === 103 === Locomotion is an important task of daily activities in human. It requires a precise end-point movement control accomplished by a multi-joint coordination. Inter-joint coordination is a spatial and temporal relationship between two adjacent joints that provides information on how the neuromuscular system controls for dynamic joint control. However, previous study of locomotion that focused on kinematics of individual joints might not be sufficient to identify inter-joint coordination during locomotion. Therefore, the purpose of this study used continuous relative phase (CRP) and planar co-variation law for inter-joint coordination analysis to describe the development (age difference) of inter-joint coordination of locomotion. Thirty-two 7-9 years and 10-12 years typically developing (TD) children and 20 young adults participated in the study. CRP is derived from the joint position and velocity of two adjacent joints on phase portraits. Planar co-variation law is derived from the joint-spatial portrait. No significant group differences were noted for walking, but 7-9 years TD children showed significantly large deviation phase (DP) values than young adults in swing phase. 7-9 years TD children also showed significantly larger DP of jumping and hopping than young adults. These results represent that children present significant greater variability of joint coordination in jumping and hopping tasks but not walking, except in swing phase than young adults. In other words, children were unstable when performing the more difficult tasks, such as jumping and hopping. Examining the inter-joint coordination during locomotion tasks may be helpful to understand the age effects on the detail inter-joint coordination among different locomotion tasks and may help with examining the coordination deficits in clinical children.