| 应用逆向动力学计算关节内力的可靠性分析 |
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| 引用本文： | 施宝兴,魏文仪.应用逆向动力学计算关节内力的可靠性分析[J].北京体育大学学报,2004,27(9):1223-1225. |
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| 作者姓名： | 施宝兴 魏文仪 |
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| 作者单位： | 1. 扬州大学体育学院体育系,江苏,扬州,225002
2. 上海体育学院运动科学系,上海,200438 |
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| 摘 要： | 采用同步测力、测加速度和多机多分辨率摄像的技术,并对解析原始数据运用"积分平滑"等一系列手段,用以提高逆向动力学计算关节内力的精确性,并且与目前常规逆向动力学方法的计算结果相比较,探讨用这两种不同方法所得结果的可靠性.研究表明,当研究一侧肢体远侧环节受到较大外力作用时,只要测出外力与其压心位置,采用常规逆向动力学方法计算关节内力尚具有一定的可靠性;所采用的一些技术措施,能有效地提高计算的精确性和适应性.
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| 关 键 词： | 逆向动力学 净力矩 角加速度 动力学 应用 动力学计算 关节 内力 可靠性分析 Inverse Dynamics Force inside Joint Reliability 适应性 技术措施 位置 压心 外力作用 环节 侧肢体 研究 力学方法 比较 |
| 文章编号： | 1007-3612(2004)09-1223-04 |
| 修稿时间： | 2004年1月5日 |
Study on the Reliability of Calculating Joint inside Force in Inverse Dynamics |
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| SHI Bao-xing,WEI Wen-yi.Study on the Reliability of Calculating Joint inside Force in Inverse Dynamics[J].Journal of Beijing Sport University,2004,27(9):1223-1225. |
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| Authors: | SHI Bao-xing WEI Wen-yi |
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| Institution: | SHI Bao-xing~1,WEI Wen-yi~2 |
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| Abstract: | The aim of this study is to explore the reliability of accuracy in calculating joint inside force of inverse dynamics. The conventional method is compared with the method of this study which measures force, angular acceleration, technique of taking photographs with vidicons in synchronized, and a series of methods are used including "integral smoothing method" to improve numerical precision of coordinates. Results show that the conventional method can be applied to calculating the joint inside force only by measuring the outside force and its center of pressure while great outside force acting on the distal link of the body. The technical method of this study can improve the accuracy of calculation and applicability. |
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| Keywords: | inverse dynamics net torque angular acceleration kinetics |
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