Pancherz H
Acta Odontol Scand. 1980;38(6):343-8. doi: 10.3109/00016358009033603.
Temporal and masseter muscle activity was investigated in male subjects with normal occlusion, 11 years (n = 23) and 25 years (n = 21) of age. Integrated EMG recordings were analysed quantitatively during maximal biting in intercuspal position and during chewing of peanuts. The results of the investigation revealed the following: 1. Masseter muscle activity was greater in the older than in the younger age group. 2. Temporal muscle activity was the same in both age groups. 3. Masseter muscle activity was increased in relation to temporal muscle activity in the older subjects. In the younger subjects the same activity was found in the two muscles. 4. For the temporal muscle the chewing activity was positively correlated to maximal biting activity in both age groups. For the masseter muscle a clear correlation between chewing and biting activity was found in the younger age group only. The difference in EMG activity found between children and adults may be attributed to age changes and/or an exercising effect of the masseter muscle occurring during maturation.
对年龄分别为11岁（n = 23）和25岁（n = 21）、咬合正常的男性受试者的颞肌和咬肌活动进行了研究。在牙尖交错位最大咬合力时以及咀嚼花生期间，对肌电图积分记录进行了定量分析。研究结果如下：1. 老年组的咬肌活动比年轻组更强。2. 两个年龄组的颞肌活动相同。3. 在老年受试者中，咬肌活动相对于颞肌活动增加。在年轻受试者中，两块肌肉的活动相同。4. 对于颞肌，两个年龄组的咀嚼活动与最大咬合力活动均呈正相关。仅在年轻年龄组中发现咬肌的咀嚼和咬合力活动之间存在明显相关性。儿童和成人之间肌电图活动的差异可能归因于年龄变化和/或咬肌在成熟过程中产生的锻炼效应。
