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題名 | 旋轉側彎腰之二維與三維動作分析比較:初步結果報告=Two- vs. Three- Dimensional Method for Kinematic Analysis of Twist-bending Movement: A Preliminary Report |
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作者 | 陳昭瑩; 陳麗秋; 鄭素芳; 洪珍瑜; 鄭昶延; | 書刊名 | 中華民國物理治療學會雜誌 |
卷期 | 24:1 1999.01[民88.01] |
頁次 | 頁31-39 |
分類號 | 418.92 |
關鍵詞 | 運動學; 效度; 動作分析; 脊椎; Kinematics; Validity; Motion analysis; Spine; |
語文 | 中文(Chinese) |
中文摘要 | 本實驗目的為比較使用二維與三維動作分析方法同步分析「旋轉側彎腰」時之脊 椎關節運動學資料的差異。 受試者為 4 位健康年輕男性,圓球狀反光貼紙置放於枕骨最突 出點、頸椎第 7 節、胸椎第 12 節、腰椎第 5 節與薦椎第 2 節, 以測得頸椎、胸椎、腰 椎及薦椎之動作,使用的儀器包括 Peak 動作分析儀器及 3 部攝影機。 「旋轉側彎腰」動 作分為兩期, 第一期為受試者向前彎至手碰觸到目標物,第 2 期為手碰觸目標物至回到坐 正姿勢。以配對 t- 檢定、線性相關與描述性分析檢測二維與三維動作分析方法所測得運動 學資料之差異。結果顯示「旋轉側彎腰」動作中,二維與三維方法分別記錄動作之總時間為 2.35 ± 0.17 秒與 2.38 ± 0.19 秒。 不論是總時間或者決定各動作期發生之時間,兩種 分析方法間並無顯著差異( p>0.05 )。頸椎、胸椎與腰椎關節角度在二維與三維分析結果 呈現佳至高度之相關性且有統計學之顯著意義( r=0.75-0.98, p<0.0001 ), 薦椎關節角 度則呈差至中度相關( r=0.37 及 0.44,p <0.0001 ); 二維與三維方法所測得角度數值 的差異,胸椎約 18 度, 頸椎、腰椎與薦椎各約 2-4 度,至於角度之差異值約佔各脊椎關 節於三維方法所測關節活動度之 10-45%。 本實驗結果意味使用二維與三維方法分析旋轉側 彎腰動作,能獲致相近之時間資料,但是在偵測脊椎關節角度方面則呈現差異性。 |
英文摘要 | The purpose of this study was to compare a two- vs. three-dimensional method for the kinematics analysis of twist-bending movement. The subjects were four healthy young men. Reflective markers were placed at the following bony landmarks: the occiput, C7, T12, L5 and S2 to define the cervical, thoracic, lumbar, and sacral angles. The instrument consisted of three synchronized video cameras for two- and three-dimensional analysis. Videotapes were digitized and analyzed using the Peak Performance Motion Analysis System. The twist-bending movement was divided into two phases, i.e. from sitting erect to contacting an object that was positioned at the front-left side of the subject, and from contacting the object to the sitting position. The paired t- test and Pearson correlation coefficient were used to compare the temporal and angular data obtained from the two- and three-dimensional methods. The results showed non-significant differences between the two methods in determining the onset and commencement of the movement phases(p>0.05). Correlation of joint angles between the two methods was good to excellent for the cervical, thoracic, and lumbar joints(r= 0.75 to 0.98, p<0.0001), and poor to moderate for the sacral joint(r=0.37 and 0.44, p<0.0001). The difference in range between the two methods was 2 ° to 6 ° (7.2% to 41.3% of the total range), except for the thorax which was 18@ (42.4% of the total range). Our findings indicate that the two- and three-dimensional methods provide equivalent information on the temporal but not the angular data for the analysis of twist-bending movement. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。