通過從壓力中心軌跡中提取特徵，提出了許多特徵量化姿態平衡的穩定性。
然而，大多數的研究集中在整體 COP（COP T），它是右腳 COP（COP R）和左腳
COP（COP L）的加權總和。相比之下，很少關注到 COP T，COP R 和 COP L 之間的
協調模式。
為了研究這三個 COP 的關聯模式對平衡的影響，本研究使用十二對特徵的
相關係數來表示 COP T，COP R 和 COP L 之間的聯結強度。通過兩種不同的方法進
行測試這些相關係數在評估姿勢穩定性方面的效能。第一種方法比較了開眼和閉
眼情況下，這些相關係數的樣本之均值。實驗結果顯示，在十二對特徵的相關係
數中，其中六對特徵在統計學上有顯著差異。
第二種方法研究了十二對特徵的相關係數和九個 COP 速度特徵之間的關聯
性。對於每一對測試特徵的相關係數和測試的 COP 速度特徵，第二種方法將測
試特徵之相關係數為正的時間段以及相關係數為負的時間段 COP 速度特徵的樣
本之均值。由於許多這樣的測試結果具有統計學顯著性，所以認為 COP T，COP R
和 COP L 在正相關的時間比例可用於評估姿勢穩定性。

關鍵字：壓力中心、協調模式、相關係數、姿勢穩定性

By extracting features from the trajectory of center of pressure (COP), many
features have been proposed to quantify the stability of postural balance. However, most
of these studies focus on the total COP (COP T ) which is the weighted sum of the COP
of the right foot (COP R ) and COP of the left foot (COP L ). In contrast, very little attention
has been given to the coordination patterns between COP T , COP R and COP L .
To investigate the impacts of the correlation patterns of these three COPs on
balance, this study uses twelve correlation coefficients to characterize the coupling
strengths among COP T , COP R and COP L . The efficacies of these correlation
coefficients in assessing postural stability are tested by two different methods. The first
method compares the sample means of these correlation coefficients of the eyes open
and eyes closed conditions. Experimental results show that six of the tested twelve
correlation coefficients exhibit statistically significant differences.
The second method investigates the associations between the tested correlation
coefficients and nine COP velocity features. For every pair of the tested correlation
coefficient and tested COP velocity feature, the second method compares the sample
means of the COP velocity feature of the time period when the tested correlation
coefficient is positive to that of the time period when the tested correlation coefficient
is negative. Since many of such test results are statistically significant, it is believed the
ratio of time that COP T , COP R and COP L are positively correlated can be used to assess
postural stability.

Keywords: center of pressure, coordination patterns, correlation coefficient, postural
stability.

論文審定書..................................................................................................................... i
誌謝................................................................................................................................ ii
摘要.............................................................................................................................. iii
Abstract ......................................................................................................................... iv
目錄................................................................................................................................ v
圖目錄.......................................................................................................................... vii
表目錄........................................................................................................................ viii
第一章 緒論 ................................................................................................................. 1
1.1 前言 ..................................................................................................................... 1
1.2 研究動機與目的 ................................................................................................. 2
1.3 文獻回顧 ............................................................................................................. 2
第二章 實驗流程與方法 ............................................................................................. 4
2.1 實驗對象 ............................................................................................................. 4
2.2 實驗流程 ............................................................................................................. 4
2.3 實驗設備 ............................................................................................................. 6
第三章 平衡感指標 ................................................................................................... 10
3.1 壓力中心與質量中心（Center Of Pressure And Center Of Mass） ................. 10
3.2 分析流程與方法 ............................................................................................... 12
第四章 實驗結果與討論 ........................................................................................... 22
4.1 特徵對相關係數之開、閉眼統計分析結果 ................................................... 23
4.2 特徵對正、負相關視窗之 COP 平均速度統計分析結果 ............................. 25
第五章 結論與未來展望 ........................................................................................... 33
參考文獻...................................................................................................................... 34

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