Equifinal Throwing Movements ± Computational Approach, Mechanical Implementation, and Learning Intervention
Equifinal Throwing Movements ± Computational Approach, Mechanical Implementation, and Learning Intervention
复制标题
等量投掷动作±计算方法、机械实现和学习干预
DOI：
10.1051/bioconf/20110100073
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Müller
中科院分区：
文献类型：
--
作者：
Reiser;Maurer;Fiehler;Müller
当高目标精度是运动性能的限制因素时，如在目标导向的投掷任务中，可以使用等终点运动技术来减少固有的生物变异性对任务结果的影响。例如，在投掷运动中，这些技术的特点是运动轨迹的特定时空组织，允许几个瞬间的释放，导致目标命中。投掷专家（如飞镖或滚球运动员）拥有数万次练习试验的经验，显示出等终点运动，但投掷新手也可以在至少1000次练习试验后学会使用等终点。在这里，我们提出了一项研究，旨在审查如何收购的equifilm投掷动作可以得到改善和加速。干预方法采用机械引导。确定和机械实施的等效技术在一个虚拟的目标为导向的投掷任务，以及为期四天的干预实验的结果。结果表明，计算等终点运动轨迹和实现机械引导的方法是适当的，以支持获取容错运动策略。
Whenever high target accuracy is a limiting factor of motor performance, as in goal-oriented throwing tasks, equifinal movement techniques can be used to reduce the influence of inherent biological variability on the task result. In throwing movements, for instance, these techniques are characterized by a specific spatio-temporal organization of the movement trajectory that allows several moments of release that lead to a target hit. Throwing experts (e.g. darts or boule players) with the experience of several ten thousand practice trials show equifinal movements, but also throwing novices can learn to use equifinality after at least 1000 trials of practice. Here, we present a study that aims to scrutinize how the acquisition of equifinal throwing movements can be improved and accelerated. Mechanical guidance was used as intervention method. Determination and mechanical implementation of an equifinal technique in a virtual goal-oriented throwing task as well as results of a four-day intervention experiment are presented. Results confirm that the approaches to compute an equifinal movement trajectory and to implement mechanical guidance are appropriate to support acquisition of error tolerant movement strategies.