From the Department of “Are you absolutely sure about that?”, evolutionary psychology once more is on the march:
Love songs may rhapsodise “something in the way she moves”, but a sexy walk is not a sign that a woman is ready to become pregnant. In fact, a new study suggests that the way a woman walks changes during her monthly cycle, and that the most seductive wiggle occurs when she is least fertile.[...]
For the latest study, Dr Provost and her team dressed female volunteers in suits adorned with light markers, as used in Hollywood special effects departments, along the joints and limbs.
This allowed them to film each woman as she walked and then analyse her gait. They also collected saliva samples to find out whether each woman was in the more or less fertile phase of her menstrual cycle.
The women who were ovulating walked with smaller hip movements and with their knees closer together, New Scientist magazine reported. When 40 men were shown the images of the women walking they rated those in the less fertile part of their cycle as having the sexiest walks. [...]
That makes evolutionary sense, because it would benefit a woman to advertise her fertility only to those men she believes would make a suitable mate. In contrast, men can pick up on the attractiveness of a woman’s walk from long distance, and it can therefore act as an unwitting signal to less appealing males whom she might not want to choose.
Hmmm. I think the best you can say about this is at least they did the right thing and went ahead and published these desperately unconvincing results rather than sweeping them under a rug.