運動素(kinesin)為一種水溶性的酵素蛋白質分子，位於細胞內，依附於微管(microtubule)做單方向的前進。運動素的頭部與核酸鍵結的方式，將主導其運動機制。
本文用擴散方程式結合馬可夫鏈推移矩陣，建立一個數學量化的模型，分別以v、L、r及 Ds這四個重要參數分析運動素處於負載下，沿著微管運動的機制，並與實驗數據做比較。
由本文研究結果顯示，運動素在不同ATP濃度下，處於低負載時，速度無明顯變化。但處於低濃度時，r值會得到比較高的值，代表此時的ATP水解，是無法與運動素做鍵結，導致化學能量無法轉換成機械能。

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