Yeah, I dunno. I've had some fierce training for soccer, and I ride daily (especially in the summer, hours a day of riding) so it could be either! I've been growing while riding/training too, so I don't know! Bowed legs (you can see if you actually have them through xrays, some people self-diagnose when it's actually just the shape of their muscle) Its when, if the knee and the ankle are aligned straight, the bone between them curves outwards, sometimes backwards too. Normally it causes people to walk wierd, have problems with their feet/ankles/knees, and I've heard that it gives you a handicap if you plan on running endurance. A lot of the times, you can see it if you put your knees together, because your ankle bones can't touch each other.
Eventing: the only sport where you wear your medical information strapped to your arm.