If Kira has HD she will have HD. Sprints do not cause HD. Rooney does exactly the same thing Kira does. It's not like I can teach him to not run full speed. If she is genetically predisposed to HD (will develop at some point), the sprints would likely cause it to happen earlier, but if she has healthy hips the sprints won't do anything for her hips. They will probably strengthen them more than anything as it is physical exercise.
CD RE TC HIC 7/10