Asymmetries in movement times of the hands in 60 healthy participants with different patterns of hand-foot dominance were investigated. Handedness and footedness were assessed by means of questionnaires and verified by simple motor tasks. Psychomotor performance was evaluated by the use of selected tests from the computerised Vienna Test System (VST, Vienna, Austria). Movement time (MT) was assessed separately for dominant and non-dominant hands in a unimanual simple reaction task. Participants performed significantly better with their preferred hand, and differences in performance between right- and left-handers were not significant, neither was there a main effect of foot dominance on MT of the hands. However there was a significant effect of laterality pattern in hand-foot combination on hands MT: participants with cross-lateral dominance patterns of hands and feet performed significantly better than those with congruent hand-foot dominance. No significant interaction with sex was found. These results provide evidence for a lack of independence of hand and foot dominance in motor performance, suggesting the functional significance of limb laterality pattern in the motor control system. The results support the hypothesis that the quality of human hand movements may be influenced not only by central information processing (hemispheric specialisation) but also by other structures and processes of motor control, such as central pattern generators (CPGs) and biomechanical factors.

中文翻译：

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运动时间与手脚偏斜度的关系。

调查了60名健康参与者的手部运动时间的不对称性，这些参与者具有不同的手足优势模式。用问卷调查评估手和脚的姿势，并通过简单的运动任务对其进行验证。通过使用计算机化的维也纳考试系统（VST，维也纳，奥地利）中选定的测试来评估心理运动表现。在单手简单反应任务中，分别对优势手和非优势手的运动时间（MT）进行了评估。参与者的惯用手表现明显更好，左手和右手之间的表现差异不显着，足部优势对手的MT也没有主要影响。但是，手脚组合对MT的侧向性模式有明显影响：具有手和脚横向优势模式的参与者的表现明显优于具有一致手足优势的参与者。没有发现与性的显着相互作用。这些结果提供了在运动表现中手和脚支配地位缺乏独立性的证据，表明了在运动控制系统中肢体侧面模式的功能意义。结果支持这样的假设，即人类手部运动的质量不仅会受到中央信息处理（半球专业化）的影响，还会受到其他马达控制结构和过程的影响，例如中央模式发生器（CPG）和生物力学因素。这些结果提供了在运动表现中手和脚支配地位缺乏独立性的证据，表明了运动控制系统中肢体偏侧性模式的功能意义。结果支持这样的假设，即人类手部运动的质量不仅会受到中央信息处理（半球专业化）的影响，还会受到其他马达控制结构和过程的影响，例如中央模式发生器（CPG）和生物力学因素。这些结果提供了在运动表现中手和脚支配地位缺乏独立性的证据，表明了运动控制系统中肢体偏侧性模式的功能意义。结果支持这样的假设，即人类手部运动的质量不仅会受到中央信息处理（半球专业化）的影响，还会受到其他马达控制结构和过程的影响，例如中央模式发生器（CPG）和生物力学因素。