方法采用脊柱活动节段的三维有限元模型分析了脊柱在直立位、前屈位和后伸位的应力分布情况。
Methods Stress distribution of the spine in the upright, flexion and extension positions was analyzed using a three-dimensional finite element model of the spinal motion segment.
结果：两组颈部及脊柱周围软组织压痛均有明显改善（P<0.05），治疗后两组颈前屈、后伸、左右侧屈及左右旋转活动度加大（P<0.05）。
Results:Surrounding soft tissues tenderness of neck and spinal were obviously improved (P<0.05). ROM of neck in both groups after therapy were improved as well(P<0.05).
目的探讨颈椎病患者颈椎后伸和前屈肌群最大随意收缩力矩的特征和推拿对其的影响。
Objective To explore the characteristics of maximal voluntary contraction torque of neck muscles in patients with cervical spondylosis and the intervention mechanism of massage.
正常生理状态下斜扳，后伸位应力大于前屈位而小于自然中立位。
Under normal physiologic condition, the stress in posterior extension is greater than that in anterior flexion, but less than in neutral position.
运用颈椎周围不同肌肉对颈椎作用力的变化，模拟正常活动范围内颈椎前屈、后伸、侧屈、旋转等多种工况。分别计算并得出相应载荷下钩椎关节、小关节应力值。
With the changing of muscular force, the movements such as flexion, extension, lateroversion and rotation were imitated, and the stress was calculated under different loads, respectively.
②运动干预后实验班坐位体前屈、俯卧背伸、双手后勾与对照班也存在显著性差异（P〈0.05）。
After intervention in the test group, the students' sit and reach, trunk extension test, shoulder and stretch were also significantly different(P0.05).
②运动干预后实验班坐位体前屈、俯卧背伸、双手后勾与对照班也存在显著性差异（P〈0.05）。
After intervention in the test group, the students' sit and reach, trunk extension test, shoulder and stretch were also significantly different(P0.05).
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