Influence of the composition of artificial turf on rotational traction and athlete biomechanics

人造草坪成分对旋转牵引力和运动员生物力学的影响

• 批准号: 508768-2017
• 负责人: Stefanyshyn, Darren
• 金额: $ 0.64万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640608
• 关键词: Influence; composition; artificial; turf; rotational

Advances in artificial turf have made these surfaces behave similarly to natural grass, there is still debate as towhether artificial turf is as safe as natural grass in terms of athlete injury risk. Previous research has shownlinking rotational traction to lower extremity injury risk. Therefore, artificial surfaces have a potentialadvantage as the components can be manipulated to alter the rotational traction. In the previous Engage Grant,it was shown that components of artificial turf can influence both mechanical traction and athlete lowerextremity biomechanics. In order to further exploit the results of the initial Engage Grant, the influence thatadditional infill materials have on mechanical traction and athlete biomechanics will be investigated.Additionally, the total sample size of the study will be expanded to increase statistical power. The study willconsist of both mechanical and biomechanical testing. The mechanical testing performed in the first stage willdetermine the influence of each infill material of artificial turf on rotational traction. All mechanical testing willconsist of rotational traction testing using a proprietary robotic testing machine. Sample sections of artificialturf will be attached to the movable platform and a prosthetic foot will be fitted with a conventional cleatedshoe. Four samples of artificial turf will be constructed by FieldTurf with alterations in the infill material(Greenfield, EcoMax, ProMax V2, Walnut) with all other aspects of the turf remaining identical (fibre density,fibre length, infill compaction). Following mechanical testing, turf surfaces may be selected for further analysisif the mechanical testing results in significant differences in rotational traction from the conventional Controlsurface (conventional rubber infill). Biomechanical testing will determine the influence the new turf on thebiomechanics of the lower extremity resultant joint loading. Eight male athletes will perform a running v-cutmovement on a 3D force platform mounted in the center of a lab runway floor with each surface securelybolted to the force platform. Kinematics and kinetics will be collected and using an inverse dynamics approach,intersegmental forces and joint moments will be calculated from the motion capture and force data.

人造草坪的进步使这些表面的行为类似于天然草地，但就运动员受伤的风险而言，人造草坪是否与天然草地一样安全仍存在争议。此前的研究表明，旋转牵引法与腿部损伤风险有关。因此，人造表面有一个潜在的优势，因为组件可以被操纵来改变旋转牵引力。在之前的Engage Grant中，已经表明人工草坪的组件可以影响机械牵引和运动员的下肢生物力学。为了进一步利用初始参与资助的结果，将调查额外的填充材料对机械牵引力和运动员生物力学的影响。此外，研究的总样本量将扩大，以增加统计力量。这项研究将包括机械和生物力学测试。第一阶段进行的力学测试将确定人工草坪的各种填充材料对旋转牵引力的影响。所有机械测试将包括使用专有的机器人测试机进行旋转牵引力测试。人造草坪的样本部分将被固定在可移动平台上，假肢脚将安装传统的鞋带。FieldTurf将建造四个人造草坪样品，但填充材料(Greenfield、ECOMAX、ProMax V2、胡桃)发生变化，而草坪的所有其他方面保持不变(纤维密度、纤维长度、填充紧实度)。在机械测试之后，可以选择草坪表面进行进一步分析，如果机械测试结果与传统控制表面(传统橡胶填充)的旋转牵引力显著不同，则可以选择草皮表面进行进一步分析。生物力学测试将确定新草皮对下肢联合关节载荷生物力学的影响。八名男运动员将在安装在实验室跑道地板中央的3D测力平台上进行跑步V-Cut运动，每个表面都安全地螺栓连接到测力平台上。将收集运动学和动力学，并使用反向动力学方法，从运动捕捉和力数据计算节间力和关节力矩。