■弹性缓冲材料通过吸收冲击能量并延迟其传递来保护人体组织免受伤害。然而,在向命中目标交付武力方面的潜在妥协仍然未知。
■要检查硅胶缓冲是否会影响击打目标的冲击力传递,在材料测试后,对12名精英拳击手进行了双盲交叉试验。每个拳击手在两种情况下提供了五个最大的拳头:硅胶手包裹和纱布手包裹,以平衡的顺序,会话之间有3天的间隔。沿Z轴的力分布指示冲头的预期方向,而沿X和Y轴的力表示朝向不需要的方向的力耗散。
■材料测试(基于ASTMInternational,西孔霍肯,PA,USA)显示出与类似厚度的纱布相比,硅酮对破裂的压缩要高得多。在打孔试验中,硅基手工包装显示出略高的总力产生(436±33N与372±12N,p<0.001)比基于纱布的手动包装。此外,力量浪费,计算为沿X轴和Y轴的力之和与所产生的总力的百分比,与纱布(3.8%的浪费)相比,硅酮材料(2.0%的浪费)显著更低(p<0.001)。硅树脂材料的使用将打拳与击打目标之间的接触时间从35ms延长到50ms(p<0.001)。
■弹性垫不会损害拳击手套向击球目标的力传递。相反,它似乎允许额外的机动时间对准在拳头目标接触与更高的影响。
UNASSIGNED: Elastic cushioning materials protect human tissue from injury by absorbing impact energy and delaying its transfer. However, the potential compromise in
force delivery to the hitting target remains unknown.
UNASSIGNED: To examine if silicone cushioning compromises punch
force delivery to a hitting target, a double-blind crossover trial with 12 elite boxers was conducted following material tests. Each boxer delivered five maximal punches under two conditions: silicone-hand wrapping and gauze-hand wrapping, in counterbalanced order, with a 3-day interval between sessions.
Force distribution along the Z-axis indicated the punch\'s intended direction, while forces along the X and Y axes represented
force dissipation toward unwanted direction.
UNASSIGNED: The material tests (based on ASTM International, West Conshohocken, PA, USA) demonstrated substantially higher compression to disruption for silicone than gauze of similar thickness. During the punching trials, the silicon-based hand wrapping exhibited slightly higher total force production (436 ± 33 N vs. 372 ± 12 N, p < 0.001) than the gauze-based hand wrapping. Moreover,
force wastage, calculated as the sum of forces along the X and Y axes vs. the total
force produced in percentage, was notably lower for silicone material (2.0% wastage) compared to gauze (3.8% wastage) (p < 0.001). The use of silicone materials lengthened the contact time between the punching fist and the hitting target from 35 ms to 50 ms (p < 0.001).
UNASSIGNED: The elastic cushion does not compromise the force delivery of the boxing glove to the hitting target. Instead, it appears to allow for additional maneuvering time for alignment during the fist-target contact with higher impact.