This study focuses on the influence of the softening and stiffening of pubic symphysis on the load distribution within the bones of the pelvic ring under the physiological loadings of the single leg stance. Muscle forces and joint reaction forces were first determined by inverse dynamics and applied to a linear finite element model of the pelvis. With normal pubic symphysis stiffness, high Von Mises stresses are located on the anterior surface to the sacrum around the sacroiliac joint and on the superior ramus, both on the side of the weight‐bearing leg. Softening of the pubic symphysis redirects the load backward, decreases the stresses at the anterior pelvis, and increases them at the posterior pelvis. A stiffening of the pubic symphysis redirects the load forward, increases the load on the posterior pelvis, and decreases them at the anterior pelvis. This investigation highlights the significance of the pubic symphysis on the load distribution of the pelvis and in maintaining the integrity of the structures. Its role should not be neglected when analyzing the pelvis.

中文翻译：

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单腿站立时耻骨联合刚度对骨盆负荷分布的影响。

这项研究的重点是在单腿姿势的生理负荷下，耻骨联合的软化和僵硬对骨盆环骨内负荷分布的影响。首先通过逆动力学确定肌肉力和关节反作用力，并将其应用于骨盆的线性有限元模型。在耻骨联合僵硬正常的情况下，高Von Mises应力位于the关节周围around骨的前表面和上上支。耻骨联合的软化将负荷向后重定向，减小了骨盆前部的应力，并增加了骨盆后部的应力。耻骨联合的僵硬会使负荷向前转移，增加骨盆后部的负荷，并减少它们在骨盆前。这项研究突出了耻骨联合对骨盆负荷分布和维持结构完整性的重要性。分析骨盆时不应忽略其作用。