Haraldson T, Carlsson G E, Dahlström L, Jansson T
Scand J Dent Res. 1985 Dec;93(6):539-45. doi: 10.1111/j.1600-0722.1985.tb01352.x.
Myoelectric activity in the anterior and posterior temporalis and in the masseter muscle was assessed in five subjects biting unilaterally on a bite fork at 50, 100 and 200 N for 60 s. The bite fork was placed between the right first premolars and the first molars. The ipsilateral muscle activity was recorded first, and the contralateral side was evaluated 1 wk later. The relationship between exerted force and EMG-activity was expressed as ratios between EMG-activity and related bite force. EMG-activity increased with increasing force for all muscles tested. Linearity was found for the anterior temporal muscle, but not for the other muscles. Four of the subjects participated in an endurance test, exerting maximum bite force on the right side for as long as possible. The EMG activity of the right masseter muscle was closely related to bite force, in contrast to the other tested muscles. The activity of the left muscles increased at the end of the endurance test.
在五名受试者中，评估了他们在单侧咬50牛、100牛和200牛的咬叉60秒时颞肌前束和后束以及咬肌的肌电活动。咬叉置于右侧第一前磨牙和第一磨牙之间。首先记录同侧肌肉活动，1周后评估对侧肌肉活动。施加力与肌电活动之间的关系用肌电活动与相关咬合力的比值表示。所有测试肌肉的肌电活动均随力的增加而增加。颞肌前束呈现线性关系，而其他肌肉则不然。四名受试者参加了耐力测试，尽可能长时间地在右侧施加最大咬合力。与其他测试肌肉相比，右侧咬肌的肌电活动与咬合力密切相关。在耐力测试结束时，左侧肌肉的活动增加。
