Addition of an arch support improves the biomechanical effect of a laterally wedged insole
Addition of an arch support improves the biomechanical effect of a laterally wedged insole
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DOI：
10.1016/j.gaitpost.2008.08.007
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发表时间：
2009-02-01
期刊：
影响因子：
2.4
通讯作者：
Fukui, Naoshi
中科院分区：
文献类型：
--
作者：
Nakajima, Kohei;Kakihana, WataFu;Fukui, Naoshi
为了检验足弓支撑的增加是否可以改善侧向楔形鞋垫的生物力学效果，对20名健康志愿者进行了三维步态分析。在膝关节和距下关节的动力学和运动学参数进行了比较以下四种类型的鞋垫：5毫米厚的平鞋垫，一个平鞋垫与足弓支撑（AS），一个6度倾斜的横向楔形鞋垫（LW），和一个横向楔形鞋垫与足弓支撑（LWAS）。与FLAT相比，LW和LWAS分别使整个站立期的平均膝关节内收力矩减少了7.7%和13.3%。LW和LWAS的膝关节内收力矩差异在站立后期最为明显，这归因于两种鞋垫的前进角不同。分析还表明，LW倾向于增加台阶宽度，并且通过在LW中添加拱形支撑完全消除了这种增加。阶梯宽度的减小可能是LWAS进一步减小力矩的另一种机制。距下关节生物力学参数的分析表明，LWAS允许受试者以更自然的方式行走，同时比LW发挥更大的生物力学作用。因此，向侧向楔形鞋垫添加足弓支撑件更有效地减小了膝盖内收力矩，这可能是通过消除侧向楔形鞋垫的潜在负面影响。(c)2008 Elsevier B.V.保留所有权利。
In order to examine if the addition of an arch support could improve the biomechanical effect of the laterally wedged insole, three-dimensional gait analysis was performed on 20 healthy volunteers. Kinetic and kinematic parameters at the knee and subtalar joints were compared among the following four types of insoles: a 5-mm thick flat insole, a flat insole with an arch support (AS), a 6 degrees inclined laterally wedged insole (LW), and a laterally wedged insole with an arch support (LWAS). The knee adduction moment averaged for the entire stance phase was reduced by the use of LW and LWAS by 7.7% and 13.3%, respectively, from that with FLAT. The difference in knee adduction moment between LW and LWAS was most obvious in the late stance, which was ascribed to the difference in the progression angle between those insoles. The analyses also revealed that LW tended to increase step width, and that such an increase was completely eliminated by the addition of an arch support to LW. This reduction of step width could be another mechanism for the further reduction of the moment with LWAS. The analyses of biomechanical parameters at the subtalar joints suggested that LWAS allowed the subject to walk in a more natural manner, while exerting greater biomechanical effects than LW. Thus, the addition of an arch support to the laterally wedged insole reduced knee adduction moment more efficiently, possibly through the elimination of potential negative effects of the laterally wedged insole. (c) 2008 Elsevier B.V. All rights reserved.