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我们的脊柱不是一个直直的乐高玩具。即使我们站立时,挺得像个I字,脊柱还是有两个弯曲处:颈部和腰部。脊柱能够弯曲,是因为有关节。随着肌肉的运动,韧带也随之前伸或者后弯。装满纤维环的椎间盘具有弹力垫的作用,能够减缓冲击,使压力平均分布在各个椎间。25岁以后,椎间盘的含水量会降低,这会影响纤维环的弹性,使它的灵活性降低。长时间地维持一种不正确的姿势或者这种不正确的姿势反复出现会导致纤
Our spine is not a straight Lego toy. Even when we stand, it looks like an I, the spine still has two bends: the neck and the waist. The spine can bend because of the joints. As the muscles move, the ligaments also extend or bend forward. The annulus filled with annulus fibrosus has the effect of an elastic pad that reduces the impact and distributes the pressure evenly across the intervertebral discs. After 25 years of age, the water content of the disc decreases, which affects the elasticity of the annulus and reduces its flexibility. Maintaining an incorrect posture for long periods of time or recurring occurrences of such incorrect posture can lead to fiber