Punthipayanon Sirichet, Kwanboonchan Supranee, Rachanavy Pornthep, Kuo Chia-Hua
Laboratory of Exercise Biochemistry, Institute of Sports Science, University of Taipei, Taipei, Taiwan.
Department of Sports Science, Srinakharinwirot University, Bangkok, Thailand.
Front Sports Act Living. 2024 Aug 8;6:1358224. doi: 10.3389/fspor.2024.1358224. eCollection 2024.
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.
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.
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, < 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) ( < 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 ( < 0.001).
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.
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，传递到击打目标的力的潜在折损情况仍不明确。
为了检验硅胶缓冲是否会折损拳击手套传递到击打目标的力量，在材料测试之后，对12名精英拳击手进行了一项双盲交叉试验。每位拳击手在两种条件下打出五记最大力量的拳：硅胶缠手和纱布缠手，顺序随机，两次测试之间间隔3天。沿Z轴的力分布表明拳的预期方向，而沿X轴和Y轴的力表示向非预期方向的力消散。
材料测试（基于美国宾夕法尼亚州韦斯特康舍霍肯的美国材料与试验协会）表明，与厚度相似的纱布相比，硅胶的压缩至破裂程度要高得多。在拳击试验中，硅胶缠手的总力量产生略高于纱布缠手（436±33N对372±12N，<0.001）。此外，以沿X轴和Y轴的力之和占总产生力的百分比计算的力损耗，硅胶材料（2.0%损耗）明显低于纱布（3.8%损耗）（<0.001）。使用硅胶材料使拳与击打目标之间的接触时间从35毫秒延长至50毫秒（<0.001）。
弹性缓冲不会折损拳击手套传递到击打目标的力量。相反，它似乎在拳头与目标接触时允许有更多的调整时间来对准，且冲击力更大。
