The evolution of the female pelvis

by Lovely Flavia skin specialist The evolution of the female pelvis would be a compromise between something that should be wide to let a baby with big brains, but by also need to make. Efficiently run small as possible this is called the "obstetrical dilemma.

The hip bones are not further apart; this would be inefficient women walk. Therefore, our babies do need to be born early in their development; otherwise they fit with their (too) large brains out through the birth canal.
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Small children may be relatively helpless; they know very well how to ask for help.  Photo: Sam Stanton
Small children may be relatively helpless; they know very well how to ask for help. Photo: Sam Stanton
But is that theory is?

According to the obstetrical dilemma theory not only pregnancy, but women are in principle also limits pelvis us less good runners. Oddly enough this was until now never been investigated.

 Dr. Holly Duns worth and her colleagues examined the efficiency of walking and running in men and women. With motion tracking and a pressure sensor they could analyze the mechanics of the hips and legs. One always thought women were delivered than men because the hip muscles of women stuck to a wider pelvis.

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Created on Dec 31st 1969 18:00. Viewed 0 times.

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