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.

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。

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Objective To search for perfect and logical evaluation indexes of range of motion of manual performance and maximal voluntary range of motion.

目的探索完善而合理的手动作业活动范围评价指标及最大主动活动范围。

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It is not to bind them from voluntary actions but to direct and keep them in such motion as not to hurt themselves by their own impetuous desires, rashness or indiscretion as hedges are set not to stop travelers but to keep them on their way."

不是约束他们去做本该做的事,而是约束他们不做不该做的事,以免因自己的欲望，轻率，鲁莽而危机自身，这就像是篱笆的功能一样,不是要阻挡行路而是为小路指引方向“

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