The “obstetrical dilemma” hypothesis assumes that the modern human female pelvis serves two discrete functions: obstetrics and locomotion. We investigate whether these differing functions create observable patterns of morphological covariation and whether those patterns differ by height, weight, and age. This allows evaluation of evidence for canalization and phenotypic plasticity relevant to obstetric and locomotor function among a living female population.

中文翻译：

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女性骨盆的产科尺寸比运动尺寸更不完整，并显示出保护性缩放模式：对产科困境的影响

“产科困境”假说假设现代人类女性骨盆有两个独立的功能：产科和运动。我们调查这些不同的函数是否创建了可观察的形态协变模式，以及这些模式是否因身高、体重和年龄而异。这允许评估与活着的女性人口中的产科和运动功能相关的管道化和表型可塑性的证据。