Particularly those starting young, who are pushed and may try to keep a childish shape. See it at a local public school, with long distance running at the prep. It is pushed and taken seriously. Some of the girls look frighteningly thin and seem very anxious.
It looks like a slippery slope and yet only seems to be discussed as a positive thing. Yet the ED risks are up there or beyond ballet for that age group. In the US it is discussed and starting to be acted on.
The statistics are appalling:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8708838/
https://pubmed.ncbi.nlm.nih.gov/17490455/
https://globalsportmatters.com/health/2019/05/15/disordered-eating-plagues-female-distance-runners/
The testimony from the runners is shocking and sad:
https://www.runnersworld.com/uk/nutrition/a34963527/disordered-eating-runners/
https://www.theovalmagazine.com/post/three-women-one-issue