A novel design for an instrumented stairway.
A novel design for an instrumented stairway.
复制标题
仪表楼梯的新颖设计。
DOI：
10.1016/j.jbiomech.2006.01.020
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发表时间：
2007
影响因子：
2.4
通讯作者：
P. Bonato
中科院分区：
文献类型：
--
作者：
U. della Croce;P. Bonato
目前通过使用嵌入在楼梯台阶中的传感元件或定位在现有力平台顶部的不同高度的简单刚性块（通常嵌入在走道中用于步态分析）来研究楼梯步行期间的动力学。这些方法都不是真正令人满意的步态分析实验室。第一个是昂贵的，需要建立一个专门的空间。第二种方法受到实验室中用于评估水平行走的平台数量的限制。该通信提出了一种称为“交错楼梯”的新颖设计，其允许仅使用嵌入在走道中的两个测力平台来测量在楼梯Ampestion期间四个脚接触的地面反作用力和压力中心（CoP）的位置。的CoP估计和楼梯结构的固有频率的准确性和精度来自实验数据。测试结果表明，交错的楼梯结构并没有明显降低现有的力量平台收集的措施的质量。具体而言，估计的CoP坐标与用于评估CoP估计的准确度和精密度的校准对象的几何中心的水平坐标显示出良好的一致性（最大差异<6mm）。楼梯结构的固有频率低于空载测力平台的固有频率，但高于楼梯振动分析中感兴趣的频率分量。
Kinetics during stair ambulation is currently studied via either the use of sensing elements embedded in the steps of the stairway or simple rigid blocks of different height positioned on top of existing force platforms, typically embedded in a walkway for gait analysis. Neither of these approaches is truly satisfactory for gait analysis laboratories. The first one is expensive and requires setting up a dedicated space. The second approach is limited by the number of platforms utilized in the laboratory for evaluating level walking. This communication proposes a novel design, referred to as “interlaced stairway”, that allows one to measure ground reaction force and position of the center of pressure (CoP) for four foot contacts during stair ambulation using only two force platforms embedded in a walkway. Accuracy and precision of the CoP estimates and natural frequency of the stairway structure were derived from experimental data. Test results indicate that the interlaced stairway structure does not appreciably reduce the quality of the measures gathered by the existing force platforms. Specifically, the estimated CoP coordinates show good agreement with the horizontal coordinates of the geometric center of the calibration object utilized to assess accuracy and precision of the CoP estimates (max difference<6mm). The natural frequency of the stairway structure is lower than the one for the unloaded force platform but higher than the frequency components of interest in stair ambulation analysis.
校准新楼梯设计的测量压力中心，用于楼梯爬升动力学分析。
DOI：
--
发表时间：
1996
期刊：
Journal of biomechanics.
影响因子：
--
作者：
Yu,B;Growney,ES;Schultz,FM;An,KN
通讯作者：
An,KN