BIOENERGETIC DIFFERENCES DURING WALKING AND RUNNING IN TRANSFEMORAL AMPUTEE RUNNERS USING ARTICULATING AND NON-ARTICULATING KNEE PROSTHESES.
BIOENERGETIC DIFFERENCES DURING WALKING AND RUNNING IN TRANSFEMORAL AMPUTEE RUNNERS USING ARTICULATING AND NON-ARTICULATING KNEE PROSTHESES.
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DOI：
10.21300/18.2-3.2016.159
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发表时间：
2016-09
影响因子：
0.5
通讯作者：
Mengelkoch LJ
中科院分区：
文献类型：
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作者：
Highsmith MJ;Kahle JT;Miro RM;Mengelkoch LJ
与非截肢者相比，经股截肢(TFA)患者需要相当多的能量来行走和跑步。本研究的目的是检测TFA患者使用具有关节膝关节机制的传统跑步假体与使用非关节膝关节的跑步假体的潜在生物能量差异(氧摄取量(VO2)、心率(HR)和感知劳累等级(RPE))。4名训练有素的TFA跑步者(n=4)接受了这两种条件的适应和测试。在8个固定的步行和跑步速度中，有5个的VO2和HR显着降低(p≤0.05)。TFA显示了在八种步行速度中的六种情况下，使用带关节膝关节的假体时RPE降低的趋势。在关节膝关节条件下使用假体的TFA受试者，观察到自选步行速度、自选跑步速度和最大速度更快的趋势。最后，所有四名TFA参与者主观上更喜欢在膝关节有关节的情况下使用假体跑步。这些发现表明，对于训练有素的TFA跑步者，与使用非关节膝关节假体相比，带有关节膝关节假体的跑步假体降低了步行能量成本，并增强了主观感知措施。
Transfemoral amputation (TFA) patients require considerably more energy to walk and run than non-amputees. The purpose of this study was to examine potential bioenergetic differences (oxygen uptake (VO2), heart rate (HR), and ratings of perceived exertion (RPE)) for TFA patients utilizing a conventional running prosthesis with an articulating knee mechanism versus a running prosthesis with a non-articulating knee joint. Four trained TFA runners (n = 4) were accommodated to and tested with both conditions. VO2 and HR were significantly lower (p ≤ 0.05) in five of eight fixed walking and running speeds for the prosthesis with an articulating knee mechanism. TFA demonstrated a trend for lower RPE at six of eight walking speeds using the prosthesis with the articulated knee condition. A trend was observed for self-selected walking speed, self-selected running speed, and maximal speed to be faster for TFA subjects using the prosthesis with the articulated knee condition. Finally, all four TFA participants subjectively preferred running with the prosthesis with the articulated knee condition. These findings suggest that, for trained TFA runners, a running prosthesis with an articulating knee prosthesis reduces ambulatory energy costs and enhances subjective perceptive measures compared to using a non-articulating knee prosthesis.