Electromyographic Study on Shoulder Movements
Electromyographic Study on Shoulder Movements
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肩部运动的肌电图研究
DOI：
10.2490/jjrm1963.11.41
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发表时间：
1974
期刊：
影响因子：
--
通讯作者：
R. Sugahara
中科院分区：
文献类型：
--
作者：
R. Sugahara
(1) 在肩部运动的推动器或协同动作期间，并非所有肩袖肌肉都处于活动状态。某些肌肉用于特定的肩部运动。冈上肌在外展过程中发挥重要功能，在屈曲和伸展过程中起协同作用，但在内收、外旋和内旋过程中不活动。冈下肌在外旋过程中发挥重要功能，在屈曲、伸展和外展过程中起协同作用，但在内收和内旋过程中不活动。肩胛下肌是唯一在内旋时活跃而不用力的肌肉，在其他运动中作为协同肌活跃。小圆肌在外旋和伸展时发挥重要功能，在屈曲、外展和内收时作为协同肌活跃，在内旋时不活跃。（2）三角肌（锁骨肌）、胸大肌、背阔肌和喙肱肌不活跃(3) 冈下肌和小圆肌在外旋过程中发挥重要功能，但三角肌 (棘部) 在此运动过程中不活动。 (4) 小圆肌并不总是与冈下肌发挥相同的功能。小圆肌在外展后半段和内收过程中特别活跃，但冈下肌在外展过程中活跃，在内收过程中不活动。(5)大圆肌的功能并不总是与背阔肌相同。大圆肌在伸展和内收期间特别活跃，但背阔肌在屈曲、伸展、外展和内收期间活跃。(6) 据认为，参与肌肉的活跃状态随着进行肩部运动所需的时间而不同。
(1) Not all the rotator cuff muscles were active during the mover or synergist actions on the shoulder movements. Certain muscles came into use for specific shoulder movements. Supraspinatus performs an important function during abduction and is active as synergist during flexion and extension, but it is inactive during adduction, external rotation and internal rotation.Infraspinatus performs an important function during external rotation and is active as a synergist during flexion, extension and abduction, but it is inactive during adduction and internal rotation. Subscapularis was the only muscle that was active during internal rotation without exertion during shoulder movements and was active as a synergist during other movements.Teres minor porforms an important function during external rotation and extension, and was active as a synergist during flexion, abduction and adduction, and inactive during internal rotation.(2) Deltoideus (pars clavicularis), pectoralis major, latissimus dorsi and coracobrachialis were inactive during internal rotation, and subscapuralis was the only muscle that was active during this movement without exertion.(3) Infraspinatus and teres minor performs important function during external rotation, but deltoideus (pars spinata) was inactive during this movement.(4) Teres minor was not always functioning the same as infraspinatus. Teres minor was particularly active during the latter half of abdunction and during adduction, but infraspinatus was active during abduction and inactive during adduction.(5) Teres major was not always functioning the same as latissimus dorsi. Teres major was particularly active during extension and adduction, but latissimus dorsi was active during flexion, extension, abduction and adduction.(6) It is believed that the active condition of the participating muscles differs in relation to the time taken to carry out a shoulder movement.