Electromyographic responses to prescribed mastication
Electromyographic responses to prescribed mastication
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DOI：
10.1016/s1050-6411(02)00065-2
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发表时间：
2003-04-01
影响因子：
2.5
通讯作者：
Smith, AC
中科院分区：
文献类型：
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作者：
Kemsley, EK;Defernez, M;Smith, AC
目的是了解志愿者之间的差异，在咀嚼过程中的肌电图（EMG）的行为。肌电图被用来记录志愿者的颞肌和咬肌的电活动，他们通过操作门牙之间的校准弹簧进行咀嚼运动。志愿者们用节拍器发出的信号来协调他们的下颌运动，节拍器的频率有四种：每分钟30、60、90和120次。分析原始数据以检查咀嚼之间的间隔的分布。对于规定的最高咀嚼速率，志愿者的分布非常相似。30 bpm数据的分布变化最大，表明志愿者执行和维持这种规定咀嚼模式的能力不同。对数据进行傅里叶变换以给出频域中的功率谱。低频（
The aim was to understand between-volunteer differences in Electromyography (EMG) behaviour during chewing. EMG was used to record the electrical activity of the temporal and masseter muscles of volunteers, who carried out mastication movements by operating calibrated springs held between their incisors. The volunteers coordinated their jaw movements with the signal produced by a metronome, at four rates: 30, 60, 90 and 120 beats per minute (bpm). Raw data were analyzed to examine the distributions of the intervals between chews. For the highest prescribed chew rates, the volunteers' distributions were very similar. The distributions varied most for the 30 bpm data, suggesting that volunteers differed in their ability to carry out and maintain this prescribed chewing pattern. The data were Fourier transformed to give power spectra in the frequency domain. The low frequency (