T Nation

Fast Or Slow Twitch?


#1

I cannot determine if I am fast or slow. When I was younger and pre-teen whenever I swam (I am a swimmer) the mile I would get best times in all the swim events that are less than the mile (200, 500, and 1000yards) in the mile. Since I began weightlifting the difference between my shorter races and mile have greatly increased, my mile hasn't even dropped in two years. I have put on a lot of muscle for a distant swimmer, I am 5'8'' 165lbs and probally around 10% BF.
My coaches never have pressured me into becoming a sprinter, yet they have opened up the option. I am considering becoming a sprinter but I am afraid of loseing the success I have had as a distance swimmer and becoming a poor sprinter. Based off of my early years of swimming compared to my current size what muscle type am I?


#2

Nobody will possibly be able to answer this question and it doesn't really matter. Fiber type is largely overrated IMO, especially for high school athletes, which I'm guessing you are.