Marusiak Jarosław, Andrzejewska Renata, Świercz Dominika, Kisiel-Sajewicz Katarzyna, Jaskólska Anna, Jaskólski Artur
Department of Kinesiology, Faculty of Physiotherapy, University School of Physical Education, Al. I.J. Paderewskiego 35, Building P4, 51-612, Wroclaw, Poland.
Muscle Nerve. 2015 Dec;52(6):1096-8. doi: 10.1002/mus.24903. Epub 2015 Oct 10.
Standard electromyography (EMG) parameters have limited utility for evaluation of Parkinson disease (PD) tremor. Spike shape analysis (SSA) EMG parameters are more sensitive than standard EMG parameters for studying motor control mechanisms in healthy subjects. SSA of EMG has not been used to assess parkinsonian tremor. This study assessed the utility of SSA and standard time and frequency analysis for electromyographic evaluation of PD-related resting tremor.
We analyzed 1-s periods of EMG recordings to detect nontremor and tremor signals in relaxed biceps brachii muscle of seven mild to moderate PD patients.
SSA revealed higher mean spike amplitude, duration, and slope and lower mean spike frequency in tremor signals than in nontremor signals. Standard EMG parameters (root mean square, median, and mean frequency) did not show differences between the tremor and nontremor signals.
SSA of EMG data is a sensitive method for parkinsonian tremor evaluation.
标准肌电图（EMG）参数在评估帕金森病（PD）震颤方面的效用有限。在研究健康受试者的运动控制机制时，肌电图尖峰形状分析（SSA）参数比标准EMG参数更敏感。EMG的SSA尚未用于评估帕金森震颤。本研究评估了SSA以及标准时间和频率分析在PD相关静止性震颤肌电图评估中的效用。
我们分析了7例轻度至中度PD患者肱二头肌放松时1秒的EMG记录，以检测非震颤和震颤信号。
SSA显示，震颤信号的平均尖峰幅度、持续时间和斜率高于非震颤信号，平均尖峰频率低于非震颤信号。标准EMG参数（均方根、中位数和平均频率）在震颤和非震颤信号之间未显示出差异。
EMG数据的SSA是评估帕金森震颤的一种敏感方法。
