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仪仗队军靴底部件材料厚度组合对缓震性能的影响

The Influence of Sole Components of Different Material Combinations on the Cushioning Property of Honor Guard Boots

  • 摘要: 采用电脑式压缩能量吸收试验机对2种材料在不同厚度下的组合进行压缩测试,选择能量吸收最优的厚度组合制底;使用电脑系统缓震性能试验机对鞋底进行冲击测试,选择出缓震性能优良的2种组合鞋底制成改进军靴A、B;招募15名健康的男性大学生分别穿着3种仪仗队军靴在2种动作下进行测试,采集地面反作用力等相关参数和踝关节、膝关节与前额垂直于地面方向上的加速度。探讨了仪仗队军靴底部件不同材料组合对的缓震性能的影响,为仪仗队军靴设计提供技术支持。在正步动作下,改进军靴B表现出最小FPF(P<0.05);改进军靴A和改进军靴B相比于标准军靴的IMLR和IPLR指标均显著降低(P<0.05);跑步动作下,改进军靴A和改进军靴B相比于标准军靴的IMLR显著降低(P<0.05)。改进军靴A和改进军靴B的底部件材料组合缓冲能力均优于标准军靴,改进军靴B的底部件材料组合吸收冲击的能力最佳。这种底部件材料组合设计能有效的衰减冲击,进而对与落地动作相关的训练和损伤机制有一定的积极意义。

     

    Abstract: The effect of different material combinations of honor guard boot soles on cushioning property was investigated to provide technical support for the design of honor guard boots. Two kinds of materials with different thickness were compressed by computer compression energy absorption testing machine, and the optimum thickness composite was selected. The computer system shockproof performance testing machine was used for the impact test of the sole, and two kinds of combined soles with excellent shockproof performance were selected to make the improved military boots A and B. Fifteen healthy male college students were recruited to wear three kinds of honor guard boots and perform tests under two kinds of movements. Relevant parameters such as the ground reaction force and the acceleration of ankle joint, knee joint and forehead perpendicular to the ground were collected. Under the goose-step motion, the improved boots B showed the minimum FPF (P < 0.05). The IMLR and IPLR indexes of the improved boots A and B were significantly lower than those of the standard boots (P < 0.05). Under the running movement, the IMLR of the improved boots A and B was significantly lower than that of the standard boots (P < 0.05). The cushioning ability of the material combination of the improved boots A and B is superior to that of the standard boots, and the shock absorption ability of the material combination of the improved boots B is the best. The composite design of the bottom parts can effectively attenuate the impact, which is of positive significance for the training and damage mechanism related to the landing action.

     

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