The activity of the trapezius muscle is reportedly higher than that of other neck accessory muscles under a condition of increased inspiratory pressure in the standing position. The present study aimed to compare the activity of the trapezius muscle with those of the scalene and sternocleidomastoid muscles under a condition of increased inspiratory pressure in the supine position. This study included 40 subjects, and the muscle activity was measured using surface electromyography. Regarding the results, there was a significant difference in the muscle activity between the trapezius muscle and the scalene and sternocleidomastoid muscles (p = 0.003) in both men and women. Post-hoc analysis showed significant differences between trapezius and the other muscles. Moreover, there was no difference between the scalene and sternocleidomastoid muscles (p = 0.596). The increase in the change in electromyography activity of the muscle is greater in the trapezius muscle than in other muscles when the level of inspiratory pressure increases in the supine position.

据报道，在站立位置吸气压力增加的情况下，斜方肌的活动高于其他颈部辅助肌肉的活动。本研究旨在比较在仰卧位吸气压力增加的情况下斜方肌与斜角肌和胸锁乳突肌的活动。这项研究包括 40 名受试者，并使用表面肌电图测量肌肉活动。关于结果，男性和女性的斜方肌与斜角肌和胸锁乳突肌之间的肌肉活动存在显着差异（p = 0.003）。事后分析显示斜方肌和其他肌肉之间存在显着差异。而且，斜角肌和胸锁乳突肌之间没有差异（p = 0.596）。当仰卧位吸气压力增加时，斜方肌肌肉肌电活动变化的增加大于其他肌肉。