First a little background....As you can likely tell from my username I'm a KP grad, as a midshipmen I worked 3 indocs as an EMT and also came back three years after graduation to work with the medical dept. So I've had some experience from the medical side at KP and have worked "the medical desk" on reporting day.
During my time working the desk we had a recruited athlete report to Indoc after having surgery within a month or two who was denied entry and told to come back next year. I have heard of many similar stories for lesser injuries from the other Academies.
If you have an injury that is serious enough to require medical care, especially surgery, it would behoove the person to report it to DODMERB as required and deal with the waivers. If it is something that is minor then you can likely not worry about it.
I would recommend no skiing/snowboarding, motorcycle riding, or other similar notorious activities. If you play a sport continue to do so and don't worry about getting injured. And if you follow Jamzmom advice: go buy a bunch of bubble wrap
