Amputee locomotion: determining the inertial properties of running-specific prostheses.
Amputee locomotion: determining the inertial properties of running-specific prostheses.
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DOI：
10.1016/j.apmr.2013.03.010
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发表时间：
2013-09
影响因子：
4.3
通讯作者：
Shim, Jae Kun
中科院分区：
文献类型：
--
作者：
Baum, Brian S.;Schultz, Melanie P.;Tian, Andrea;Shefter, Benjamin;Wolf, Erik J.;Kwon, Hyun Joon;Shim, Jae Kun
为了(1)测试三线摆在估计跑步专用假体(RSP)的转动惯量(MOI)方面的有效性，(2)为科学界提供RSP惯性性值，以及(3)开发一个预测方程来估计RSP的质心(CM)位置。已知MOI的铝块被用来验证三线摆MOI测量的准确性。MOI误差是通过系统地在1-10厘米范围内错位块和钟摆主轴来调查的。质量、CM位置和MOI在四个RSP设计上进行了测试，每个设计有三个刚度类别。大学生物力学实验室。自由创新Nitro、Ossur Cheetah、Ossur Flex-Run、Otto Bock 1E90。检查了每个RSP的三种僵硬类别。不适用。已知值和RSP与摆之间主轴不对准的MOI误差；质量、CM位置、RSP主轴MOI；预测方程CM位置误差。对于已知MOI的区块，三线摆估计的MOI在−6.21×10−5 kg·m2(≤1%误差)内。RSP和钟摆CM之间1 cm-5 cm的误差为0.00002-0.00113 kg·m2(0.3%-59.2%)。给出了每种RSP的惯性特性。任何轴的MOI在不同刚度类别之间的差异为0.0038 kg·m2；不同设计之间的MOI差异高达0.0132 kg·m2。当使用整个RSP设计的平均输入值时，预测CM方程的误差在0.010-0.028米之间。三丝摆可以准确测量可吸入颗粒物的MOI。在每个设计中，RSP的惯性特性在不同的刚度类别中略有不同，但在不同的RSP设计中差异更大。使用预测方程来估计RSP CM位置可以提供足够的数据，但直接测量CM位置更可取。
To (1) test the validity of a trifilar pendulum in estimating moments of inertia (MOI) for running-specific prostheses (RSPs), (2) provide RSP inertial property values for the scientific community, and (3) develop a predictive equation to estimate RSP center of mass (CM) positions. An aluminum block with known MOI was used for verifying the accuracy of the trifilar pendulum MOI measurements. MOI errors were investigated by systematically misaligning the block and pendulum principal axes across a range of 1–10 cm. Mass, CM position, and MOI were tested across four RSP designs having three stiffness categories each. University biomechanics laboratory. Freedom Innovations Nitro, Ossur Cheetah, Ossur Flex-Run, Otto Bock 1E90. Three stiffness categories per RSP were examined. Not applicable. MOI errors from known values and principal axis misalignments between RSPs and pendulum; mass, CM positions, RSP principal axis MOIs; predictive equation CM position errors. The trifilar pendulum estimated MOI within −6.21 × 10−5 kg·m2 (≤ 1% error) for a block with known MOI. Misalignments of 1cm - 5cm between the RSPs’ and pendulum’s CM yielded errors from 0.00002 to 0.00113 kg·m2 (0.3 – 59.2%). Each RSP’s inertial properties are presented. MOI about any axis varied ≤ 0.0038 kg·m2 across stiffness categories; MOI differed up to 0.0132 kg·m2 between different designs. The predictive CM equation erred between 0.010–0.028 m when using average input values across an RSP design. Trifilar pendulums can accurately measure RSP MOI. RSP inertial properties differed slightly across stiffness categories within each design, but differed more substantially across different RSP designs. Using a predictive equation to estimate RSP CM positions can provide adequate data, but directly measuring CM positions is preferable.
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DOI：
10.1016/s0003-9993(98)90293-3
发表时间：
1998-02-01
影响因子：
4.3
作者：
Lehmann, JF;Price, R;Negretot, A
通讯作者：
Negretot, A
影响因子：
2.4
作者：
Royer, TD;Wasilewski, CA
通讯作者：
Wasilewski, CA
影响因子：
2.4
作者：
Rao, Guillaume;Amarantini, David;Favier, Daniel
通讯作者：
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影响因子：
4.3
作者：
Selles, RW;Korteland, S;Stam, HJ
通讯作者：
Stam, HJ
影响因子：
2.4
作者：
MARTIN, PE;MUNGIOLE, M;LONGHILL, JM
通讯作者：
LONGHILL, JM