The relationship between the laterality of chopstick manipulation and vision-recognition feed-back system in humans : Electromyograph analyses

本研究旨在探讨健康受试者使用筷子时的侧边性与视觉识别反馈系统的关系。在无视力和视力切断两种条件下，考察了训练对优势手、非优势手筷子样本传递时间的影响。本研究分析了手部屈曲、伸手和筷子取棒训练前后的拇短屈肌、指浅屈肌、桡臂肌和桡腕屈肌的肌电图。从这些结果来看，使用筷子的训练改善了神经肌肉的协调性。

The purpose of the present study is to elucidate the relationship between the laterality of chopstick manipulation and vision-recognition feed-back system in healthy human subjects. The effects of training on the transfer time of the stick sample by chopsticks in the dominant hand non-dominant hand were examined in the vision-free and vision cutoff conditions. In the present study, electromyograms of flexor pollicis brevis, flexor digitorum superficialis, brachio radialis and flexor carpi radialis muscles discharged during hand flexion, hand extension and pickup of stick sample with chopsticks were analyzed before and after training. From these results, training of chopstick manipulation improved nerve-muscle coordination.