Swinnen S, Walter C B, Shapiro D C
Catholic University of Leuven, Belgium.
Brain Cogn. 1988 Dec;8(3):326-47. doi: 10.1016/0278-2626(88)90058-9.
The principles underlying the coordination of limb movements with different spatiotemporal features were explored. After an initial training session in which the same unidirectional movement had to be performed with both upper limbs, subjects attempted to coordinate two different movements in a second session, i.e., the learned unidirectional movement in the left limb and a new double reversal movement in the right limb. The findings uncovered a wide variety in patterns of interlimb dependence among and within subjects, going from a high degree of dependence to relative independence. The relationship between limbs was studied by means of a detailed analysis of the displacement and acceleration patterns and the electromyographic activity of the major muscles involved. The general underlying principle that appeared to account for the diversity in movement organization was this: higher independence between limb movements is achieved when subjects initiate the movements to be coordinated successively. This asynchrony in movement onset can possibly be viewed as an attempt to safeguard against interference.
研究了肢体运动与不同时空特征协调的潜在原则。在最初的训练阶段，受试者必须用双上肢进行相同的单向运动，之后在第二阶段，受试者尝试协调两种不同的运动，即左上肢已学会的单向运动和右上肢新的双反向运动。研究结果揭示了受试者之间和受试者内部肢体间依赖模式的广泛差异，从高度依赖到相对独立。通过对位移和加速度模式以及相关主要肌肉的肌电图活动进行详细分析，研究了肢体之间的关系。似乎可以解释运动组织多样性的一般潜在原则是：当受试者相继启动要协调的运动时，肢体运动之间能实现更高的独立性。运动起始的这种异步性可能被视为一种防止干扰的尝试。
