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首页> 外文期刊>Gait & posture >Relationship between energy cost, gait speed, vertical displacement of centre of body mass and efficiency of pendulum-like mechanism in unilateral amputee gait.
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Relationship between energy cost, gait speed, vertical displacement of centre of body mass and efficiency of pendulum-like mechanism in unilateral amputee gait.

机译：单侧截肢者步态的能量消耗，步态速度，重心垂直位移与摆式机构效率之间的关系。

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摘要

The energy cost of gait (C) is greater in amputee than in normal subjects. Our objective was to assess the influence of lower speed, inefficient pendulum mechanism and disturbed smoothness of centre of body mass (CM(b)) displacement on C in unilateral amputees and to have a better understanding the relationship between these variables. Twelve adult patients (six traumatic transfemoral and six vascular transtibial amputees) participated in the study. Lower limb kinematics, displacement of CM(b), mechanical work done by the muscles to move the CM(b) and the segments due to their movements relative to the CM(b), efficiency of the pendulum mechanism, and C were assessed simultaneously in the 12 amputees walking at their self-selected speed. Our results show that C depended on gait speed, and efficiency of pendulum-like mechanism of walking but did not depend on the smoothness of CM(b). The use of only a single variable to explain the extra cost in amputee gait could sometimes be misleading.
机译：被截肢者的步态（C）能量消耗比正常人大。我们的目的是评估单侧截肢者的低速，低速摆机制和重心平滑度（CM（b））位移对C的影响，并更好地理解这些变量之间的关系。 12名成年患者（6例经颅股骨外伤和6例经皮胫骨血管截肢）参加了该研究。同时评估下肢运动学，CM（b）的位移，肌肉移动CM（b）和段相对于CM（b）的运动所完成的机械功，摆机制的效率以及C在十二名截肢者中以他们自己选择的速度行走。我们的结果表明，C取决于步态速度和摆的类似步行机制的效率，但不取决于CM（b）的平滑度。仅使用单个变量来解释截肢者步态所需的额外费用有时可能会产生误导。

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