Yeah it's interesting when something is unexplained by mbti type,natural preference, and even genetic/family background (sports). Until I was 13 or so I was doing sports all day. All day. I lived pretty much like extreme SP, couldnt sit still.
Maybe I am SP, who knows
I am also not naturally aware of my surrounding (Se), like, I am totally oblivious to everything physical around me, but for some reason, when I am in sports mode, I am very coordinated. Mostly in biking,skating,athletics =running,skiing, tennis etc.
i have a theory that i developed more sports skills as some kind of defense mechanism, i was in a way in constant danger when i was kid so i was always "on guard", and moving a lot. also, i didnt have oportunity to do more N(F) stuff like arts, music.. was never into reading much.. so this was only way to spend time.
and of course mbti has something to do with being coordinated, at least statistically