Amputee locomotion: spring-like leg behavior and stiffness regulation using running-specific prostheses.
Amputee locomotion: spring-like leg behavior and stiffness regulation using running-specific prostheses.
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DOI：
10.1016/j.jbiomech.2013.07.009
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发表时间：
2013-09-27
影响因子：
2.4
通讯作者：
Shim, Jae Kun
中科院分区：
文献类型：
--
作者：
Hobara, Hiroaki;Baum, Brian S.;Kwon, Hyun-Joon;Miller, Ross H.;Ogata, Toru;Kim, Yoon Hyuk;Shim, Jae Kun
碳纤维跑步专用假肢（RSPs）允许下肢截肢（ILEA）患者参加跑步。已经确定，随着跑步速度的增加，健全跑步者的腿刚度（Kleg）保持不变，而垂直刚度（Kvert）增加。Kvert进一步取决于关节的扭转刚度（关节刚度；Kjoint）和触地关节角度的组合。因此，对使用RSPs的ILEA跑步者的弹簧腿功能和僵硬调节的进一步了解有望有助于假肢的设计和康复策略。本研究的目的是研究佩戴rsp的ILEA对不同地上跑步速度的刚度调节。8名ILEA以一定的跑步速度进行了地面跑步。根据完整肢和假肢的动力学和运动学数据计算Kleg、Kvert和Kjoint。随着跑步速度的增加，两肢Kleg和Kvert保持不变，而在RSPs的ILEA跑步中，完整肢体的Kleg和Kvert高于残肢。在不同的跑步速度下，两腿之间的膝屈、膝屈和触地膝盖角度没有显著差异。两腿髋关节未表现出类似弹簧的功能；然而，明显的冲击峰值仅在站立阶段早期的完整腿髋关节伸展时刻观察到，这表明在ILEA中，四肢之间Kvert的差异是由于髋关节对冲击的衰减。因此，这些结果表明，使用RSPs的ILEA在跑步过程中对完整肢体和假肢的刚度调节不同。
Carbon fiber running-specific prostheses (RSPs) have allowed individuals with lower extremity amputation (ILEA) to participate in running. It has been established that as running speed increases, leg stiffness (Kleg) remains constant while vertical stiffness (Kvert) increases in able-bodied runners. The Kvert further depends on a combination of the torsional stiffnesses of the joints (joint stiffness; Kjoint) and the touchdown joint angles. Thus, an increased understanding of spring-like leg function and stiffness regulation in ILEA runners using RSPs is expected to aid in prosthetic design and rehabilitation strategies. The aim of this study was to investigate stiffness regulation to various overground running speeds in ILEA wearing RSPs. Eight ILEA performed overground running at a range of running speeds. Kleg, Kvert and Kjoint were calculated from kinetic and kinematic data in both intact and prosthetic limbs. Kleg and Kvert in both limbs remained constant when running speed increased, while intact limbs in ILEA running with RSPs have a higher Kleg and Kvert than residual limbs. There were no significant differences in Kankle, Kknee and touchdown knee angle between the legs at all running speeds. Hip joints in both legs did not demonstrate spring-like function; however, distinct impact peaks were observed only in the intact leg hip extension moment at early stance phase, indicating that differences in Kvert between limbs in ILEA are due to attenuating shock with the hip joint. Therefore, these results suggest that ILEA using RSPs have a different stiffness regulation between the intact and prosthetic limbs during running.
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影响因子：
2.4
作者：
Arampatzis, A;Brüggemann, GP;Metzler, V
通讯作者：
Metzler, V
影响因子：
1.8
作者：
Buckley, JG
通讯作者：
Buckley, JG
影响因子：
3.3
作者：
HE, JP;KRAM, R;MCMAHON, TA
通讯作者：
MCMAHON, TA
影响因子：
2.4
作者：
Hobara, Hiroaki;Kimura, Kozo;Kanosue, Kazuyuki
通讯作者：
Kanosue, Kazuyuki
DOI：
10.1097/00005768-200201000-00025
发表时间：
2002-01-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Kuitunen, S;Komi, PV;Kyröläinen, H
通讯作者：
Kyröläinen, H