The Variation and Correlation Analysis of Human Knee Motion
Date Issued
2004
Date
2004
Author(s)
Wu, Yi-Feng
DOI
zh-TW
Abstract
人工膝關節是膝上義肢使用者得以如正常人一般行走的主要憑藉，而此機構理想與否的關鍵則在於合成輸入數據的品質。本研究利用立體攝影術中皮膚標記的方法進行人體各種不同的步態實驗，包括平地行走、上斜坡行走、上樓梯行走、下樓梯行走及被動測試等共五種動作。在數據處理方面，因考慮到人體在步行的過程中速度、振幅以及初始值的差異，運用峰值校正的分析程序，以修正這些差異對步態變異及相關性所造成之影響。藉此分析各種不同步態的特性，以提供人工膝關節在機構合成時較佳之輸入數據。
The prosthetic knee is one of the main rehabilitation tools for an amputee to walk as normal. However, the proper functions of a prosthetic knee mechanism depend highly on the quality of input data in its synthesized process. Using skin markers of stereophotogrammetry, this research has performed various gait experiments including level and inclined walking, ascending and descending stairs, and passive knee movement. By the calibration of gait cycle peaks, experimental data are modified to prevent from the adverse effect of varied walking speeds and swing amplitudes on the variation and correlation analyses. Based on the study of gait cycle characteristics, it is hoped to provide better data for future synthesis of prosthetic knees to approach real human knee motion.
Subjects
矢狀面
步態分析
相關性
膝關節運動
correlation
knee motion
sagittal plane
gait analysis
Type
thesis
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