A sexy swing of the hips may attract admiring glances, but it is not a covert sign a woman is ready to breed. ... The women who were most fertile at the time of the experiment walked with fewer hip movements and with their knees closer together.
An hourglass figure has long been perceived to be the ideal figure for a woman to have. But New York University researchers have found that to be found attractive, a woman had to move in a feminine way - swaying her hips.