And that's what people miss when quoting sports statistics. They confuse culture with biology. We live in a society that imparts certain roles based on gender. Men are encouraged to exercise and run more from a young age than women are. In an egalitarian society, that disparity wouldn't exist. We really can't say how things would play out. That's why studies of paleolithic skeletons are a much better tool than just navel-gazing based on modern sports. Those statistics cannot be separated from our current society. Instead of just speculating, we can look at the actual skeletons of paleolithic people, which this article discusses. These skeletons record a record of the kinds of lives these people lived. There's no need to speculate; we can ask these people directly how they lived.