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首页> 外文期刊>Laterality >Brain lateralisation and motor learning: Selective effects of dominant and non-dominant hand practice on the early acquisition of throwing skills
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Brain lateralisation and motor learning: Selective effects of dominant and non-dominant hand practice on the early acquisition of throwing skills

机译：脑侧偏和运动学习：主要和非主要手部练习对早期掌握投掷技能的选择作用

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摘要

Findings from neurosciences indicate that the two brain hemispheres are specialised for the processing of distinct movement features. How this knowledge can be useful in motor learning remains unclear. Two experiments were conducted to investigate the influence of initial practice with the dominant vs non-dominant hand on the acquisition of novel throwing skills. Within a transfer design two groups practised a novel motor task with the same amount of practice on each hand, but in opposite hand-order. In Experiment 1, participants acquired the position throw in basketball, which places high demands on throwing accuracy. Participants practising this task with their non-dominant hand first, before changing to the dominant hand, showed better skill acquisition than participants practising in opposite order. In Experiment 2 participants learned the overarm throw in team handball, which requires great throwing strength. Participants initially practising with their dominant hand benefited more from practice than participants beginning with their non-dominant hand. These results indicate that spatial accuracy tasks are learned better after initial practice with the non-dominant hand, whereas initial practice with the dominant hand is more efficient for maximum force production tasks. The effects are discussed in terms of brain lateralisation and bilateral practice schedules.
机译：来自神经科学的发现表明，两个大脑半球专门用于处理不同的运动特征。尚不清楚该知识如何在运动学习中有用。进行了两个实验，以研究惯用手和非惯用手的初始练习对获得新颖投掷技能的影响。在转移设计中，两组练习了一种新颖的运动任务，每只手的练习量相同，但顺序相反。在实验1中，参与者获得了篮球中的姿势投掷，这对投掷准确性提出了很高的要求。与以相反顺序练习的参与者相比，在使用主导手之前先用非主导手练习此任务的参与者表现出更好的技能掌握。在实验2中，参与者学习了团队手球的过臂投掷，这需要强大的投掷力量。最初使用优势手进行练习的参与者比以非优势手开始的参与者从实践中受益更多。这些结果表明，在使用非优势手进行初始练习之后，可以更好地学习空间精度任务，而对于优势力量最大的任务，对于优势手的初始练习更为有效。根据大脑偏侧化和双边练习时间表来讨论这些影响。

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