在颈椎主动运动的过程中，由中枢神经所支配的神经运动取决于主动肌和拮抗肌刺激反应的时间和紧张程度。

In a voluntary cervical motion, the neuromotor control exercised by the central nervous system determines the time, intensity, and a nature of excitation of agonists and antagonist muscles.

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在所有的前屈肌中，对称性的和不对称的胸锁乳突肌是主要的前屈肌，并且，他们在颈椎的运动中，承担着主动肌、平衡肌和拮抗肌的作用。

In all flexion activities, symmetrical or asymmetrical sternocleidomastoids were the major flexor muscles, and they had to balance the mechanics of the neck as agonists, synergists, or antagonists.

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结果表明：运动锻炼对手机电磁辐射的自由基效应具有拮抗作用。

The result indicated that exercise training has an antagonistic effect on the free radicals effect of mobile telephone electromagnetic radiation.

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