Motor Control. 2022 Apr 1;26(2):194-212. doi: 10.1123/mc.2021-0042. Epub 2022 Jan 5.
The study examined to what extent the manipulation of hurdle height (0.76-m hurdle, low hurdle 0.50 m, and white stripe) would affect visual regulation strategies and kinematic reorganization when approaching the first hurdle. In addition, the impact of constraints as a training tool in terms of creating movement patterns functional for and representative of competitive movement models was assessed. The approach phase to the first hurdle of 13 physical education students with no previous experience in hurdling was video recorded and analyzed. Emergence of different footfall variability curves and movement coordination patterns suggests that participants interact differently with features of the performance context. Contrary to the white stripe, the hurdle height required participants to initiate regulation and distribute adjustments over a larger number of steps, and afforded the preparation for takeoff in order to clear the hurdle. In task design, manipulation of task constraints should offer valuable information regarding the dynamics of movement.
本研究旨在探讨在跨越第一个跨栏时，跨越高度（0.76 米栏、0.50 米低栏和白色条纹）的调整在多大程度上会影响视觉调节策略和运动重组。此外，还评估了作为一种训练工具的约束在创造对竞技运动模型具有功能和代表性的运动模式方面的影响。对 13 名没有跨栏经验的体育教育专业学生的第一个跨栏接近阶段进行了视频记录和分析。不同的脚步变化曲线和运动协调模式的出现表明，参与者以不同的方式与表现环境的特征相互作用。与白色条纹不同，所需的跨栏高度要求参与者在更大数量的步骤中启动调节并分配调整，并且为了越过跨栏而准备起飞。在任务设计中，任务约束的操纵应该提供有关运动动力学的有价值的信息。
