- 期刊
Influence of Modification of the Motion Tract on the Measurement of Finger Joint Motion by Motion Analysis System
動態分析系統改變運動途徑對手指關節活動角度測量的影響
摘要
我們曾運用動態分析系統於手指各關節活動的測量，但其結果和傳統量角器測量結果有差異。由於測量時手部動作兩者間有差異，因此在本實驗設計更改動態分析系統測量時的運動途徑使之與傳統測量方式一致。所得結果在重覆測試中，各關節測量誤差均小於5%，同時於掌指關節及近位指關節的活動度，兩者有一致的結果。同樣的，手指全部關節活動度總合(TAM)也有一致的結果。由以上數據我們確認不同的運動途徑會導致在動態分析系統下測量出不同關節活動度的結果。
關鍵字
無資料並列摘要
The motion analysis system is useful in recording the finger motion objectively. But the angular measurement result is not comparable with those measured by conventional goniometer. In this study, we have modified the motion tract for motion analysis to mimic that for conventional goniometer. The resulting average coefficients of variation derived from the repeated measurements by goniometer for MP, PIP and DIP joints were 5.0%, 2.4%, and 4.8%. With further modification by assisting the volunteer to standardize the posture during evaluation derived results from motion analysis system were 3.2%, 2.5%, and 5.5%, respectively. There were better agreement found at the MP and PIP joint, and a good agreement in TAM also between the goniometer and motion analysis system. In addition, we concluded also that alteration of motion tract may influence the results of angular measurement of finger joints evaluated by motion analysis system.