While some of the females in the first RS class may have received "special train-up" not all did. Many worked on their own time without much guidance, resources, training etc.
No slight to the women soldiers in the program... But I've been following this fairly closely and seen no indication of that. This first batch was hand selected and groomed. I don't mean anything negative about pointing that out.
Males need to train up as well, and do. But its an expectation not a grooming. You will do this if you go infantry. Even with pre-ranger, it is hard to come in ready for RAP week without a trainup.
Put another way, outside of a small number of WP grads who are doing an experimental Ranger before IBOLC, the 1st wave of Infantry 2015 WP grads in IBOLC have been doing PT train up since late June, and the earliest Ranger class they could hit will be January. And most started trainup well before graduation.
Right now they are routinely doing 12 mile rucks at RS pace with 45 lb rucks, plus roughly 8lbs of water. Plus ammo loadout, plus 7-8lbs of M4 optic, and sling. In 95 degree heat. In addition to regular PT. This is just building up for just one part of the first wk at RS. And by all accounts, not the hard part!
I believe you have a female cadet. If she wants to give it a try she should get on a Sandhurst team asap. Seriously train for and try to win a competitive MIAD slot for sapper or similar.