Good posture helps maintain these natural curves, while poor posture does the opposite - which can stress or pull muscles and cause pain.
正确的姿势有助于保持这些生理弯曲,而错误的姿势则相反——其将压迫或拉伸肌肉并引起疼痛。
2
The tendency of the simulated curves of pull out forces vs. displacements agrees well with experimental results, indicating the use and power of the present approach.