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为了探讨弹射时飞行员颈部肌群主动收缩的作用。对２２名年龄在１８～３５岁之间的受试者的颈部肌群主动收缩力进行了测量。结果显示：２２名受试者颈部肌群主动收缩力的平均值在１０２～３９６Ｎ之间，平均收缩时间为２８ｓ。提示：飞行员平时加强颈肌力量的训练是必要的。
In order to explore the ejection of the pilot neck muscles active contraction. The contractility of the neck muscles of 22 subjects aged 18-35 years was measured. The results showed that the mean value of active contractile force of neck muscle of the 22 subjects was between 102 and 396 N, and the average contraction time was 28 s. Tip: pilots usually strengthen the training of cervical muscle strength is necessary.