帕金森病对口颌咀嚼周期效率的影响：肌电图分析。
Impact of Parkinson's disease on the efficiency of masticatory cycles: Electromyographic analysis.
机构信息
School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Bairro Monte Alegre, CEP 14040-904 Ribeirão Preto, SP, Brazil,
出版信息
Med Oral Patol Oral Cir Bucal. 2019 May 1;24(3):e314-e318. doi: 10.4317/medoral.22841.
BACKGROUND
This study evaluated the efficiency of masticatory cycles by means of the linear envelope of the electromyographic signal of the masseter and temporalis muscles in individuals with Parkinson's disease.
MATERIAL AND METHODS
Twenty-four individuals were assigned into two groups: with Parkinson's disease, average ± SD 66.1 ± 3.3 years (n = 12) and without the disease, average ± SD: 65.8 ± 3.0 years (n = 12). The MyoSystem-I P84 electromyograph was used to analyze the activity of masticatory cycles through the linear envelope integral in habitual mastication of peanuts and raisins and non-habitual mastication of Parafilm M®.
RESULTS
There was statistically significant difference (P ≤ 0.05) between individuals with Parkinson's disease and without the disease in non-habitual mastication of Parafilm M®, in the right temporal muscle (P = 0.01); habitual mastication of peanuts, in the right temporal muscle (P = 0.02), left temporal muscle (P = 0.03), and right masseter muscle (P = 0.01); and habitual mastication of raisins in the right temporal muscle (P = 0.001), left temporal muscle (P= 0.001), right masseter muscle (P= 0.001) and left masseter muscle (P= 0.03).
CONCLUSIONS
These results suggest that Parkinson's disease interferes in the electromyographic activity of the masticatory cycles by reducing muscular efficiency.
背景
本研究通过咀嚼肌（颞肌和咬肌）肌电图信号的线性包络评估帕金森病患者的咀嚼周期效率。
材料与方法
将 24 名个体分为两组：帕金森病组，平均年龄 ± 标准差 66.1 ± 3.3 岁（n = 12）；无帕金森病组，平均年龄 ± 标准差 65.8 ± 3.0 岁（n = 12）。使用 MyoSystem-I P84 肌电图仪分析习惯性咀嚼花生和葡萄干以及非习惯性咀嚼 Parafilm M®时咀嚼周期的活动，通过线性包络积分进行分析。
结果
帕金森病组与无帕金森病组在非习惯性咀嚼 Parafilm M®时，右侧颞肌的肌电活动有统计学差异（P ≤ 0.05）（P = 0.01）；在习惯性咀嚼花生时，右侧颞肌（P = 0.02）、左侧颞肌（P = 0.03）和右侧咬肌（P = 0.01），以及习惯性咀嚼葡萄干时，右侧颞肌（P = 0.001）、左侧颞肌（P= 0.001）、右侧咬肌（P= 0.001）和左侧咬肌（P= 0.03）的肌电活动有统计学差异。
结论
这些结果表明，帕金森病通过降低肌肉效率来干扰咀嚼周期的肌电活动。
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