J1802-1-2 自動車運転時の横加速度と胸鎖乳突筋の筋電位の関係([J1802-1]生体計測とヒューマンファクタ(1))

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The paper studied correlation between lateral acceleration and electromyogram (EMG) of sternocleidomastoid (SCM) muscles, which is to clarify the possibility of EMG as an indicator of physical load against head rolling. SCM muscles are in both sides of neck, and play important parts in lateral stability of head. The experiment is a lateral sine wave vibration testing using a driving simulator. The subject sits in the passenger seat, and EMG of SCM muscles and accelerations of the head and shoulder are measured. Three settings of amplitude and frequency are designed for the vibration testing. The result indicates a tendency that root mean square (RMS) values of EMG increase following the increment of amplitude of vibration. EMG of SCM muscles becomes maximum value at frequency of 1.5 Hz, which results in resonance of lateral head vibrations.
一般社団法人日本機械学会の論文
2010-09-04