https://scholars.lib.ntu.edu.tw/handle/123456789/158168
標題: | Two- Vs. Three-Dimensional Kinematic Analysis of Twist-Bending Movement: A Preliminary Report 旋轉側彎腰之二維與三維動作分析比較:初步結果報告 |
作者: | CHEN, CHAO-YING CHEN, LI-CHIOU JENG, SUH-FANG 陳昭瑩 陳麗秋 鄭素芳 |
公開日期: | 1999 | 期: | n.1 | 起(迄)頁: | 31-39 | 來源出版物: | 中華民國物理治療學會雜誌,v.24 | 摘要: | The purpose of this study was to compare a two- vs. three- dimension al method for the kinematics analysis of twist- bending movement. The subject were four health young men. Reflective markers were placed at the following bony landmarks: the occiput, C7, T12, L5and 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 movement phases(p >0.05). Correlation of joint angles between the two methods was good to excellent for the 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 20 to 60 (7.2% to41.3% of the total range), except for the thorax which was 180( 42.4% of the total range ). Our findings indicate that the two-and three- dimensional methods provide equivalent information on the analysis of twist-bending movement. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/96967 |
顯示於: | 物理治療學系所 |
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