Abstract

The aims of this study were to i) evaluate proximal-to-distal sequencing (PDS) in pianists’ attack and release movements during pressed-staccato keystrokes, and ii) investigate if trunk motion facilitates PDS of upper-limb movements. Nine expert pianists performed a series of loud pressed-staccato keystrokes. Kinematic data was recorded with a 3 D motion capture system. PDS was assessed by comparing temporal organization of peak velocities from the pelvis to the wrist. Evidence of PDS was found across the kinematic chain. Pianists’ use of PDS differed mainly between scapula and shoulder movements. Trunk motion facilitated PDS by increasing anticipatory shoulder movements and by preceding shoulder-girdle attack and release movements. Implications might relate to research on performance optimization and injury prevention strategies.

摘要

本研究的目的是i ) 评估钢琴家在按下断奏击键期间的攻击和释放运动中的近端到远端序列 (PDS)，以及ii ) 调查躯干运动是否促进上肢运动的 PDS。九位钢琴专家演奏了一系列响亮的断奏击键。使用 3D 运动捕捉系统记录运动学数据。通过比较从骨盆到手腕的峰值速度的时间组织来评估 PDS。在整个运动链中发现了 PDS 的证据。钢琴家对 PDS 的使用主要在肩胛骨和肩部运动之间有所不同。躯干运动通过增加预期的肩部运动以及之前的肩带攻击和释放运动来促进 PDS。影响可能与性能优化和伤害预防策略的研究有关。