Ain't Science Grand?

Via Althouse, who read the NYT so you don't have to, "Past biomechanical studies show that when women run braless, their breasts joggle up and down by seven inches or more and also oscillate side to side...."

"... A 2013 questionnaire provided to women running the London Marathon found that more than a third of them, including runners with small breasts, told the researchers that their breasts often felt sore. But little past research has explored whether breast size and potential soreness affect women’s decisions to participate in exercise or if they influence the kinds of exercise that women might — or might not — pursue.

Really, you mean people might tend to avoid uncomfortable things? What a novel hypothesis!

So, for the new study, which was published this month in the Journal of Science and Medicine in Sports, researchers from the Biomechanics Research Laboratory at the University of Wollongong in Australia advertised for women willing to have their breasts measured and discussed. The researchers recruited only women because, obviously, women possess female breasts.... Women with larger breasts, whatever their B.M.I., exercised less on average than those with smaller ones and were more likely to feel that their breast size interfered with moving...."

It's pretty transphobic to assume that only women have female breasts, bro.

From "How Breast Size Affects How Women Exercise/As women’s breast sizes grew, their participation in physical activity declined, particularly if that exercise was vigorous" (NYT).

As with many Althouse posts, most of the fun is in the comments.
As with talking dogs, it's not so much that they run well but that they run at all.

Some NSFW examples.

The Wombat has Rule 5 Sunday: Alita – Battle Angel ready and waiting at The Other McCain.