I may be behind with the research Carl, but I have read research which suggests that both slow twitch and fast twitch become involved, if the movement is sufficiently compound. I remember reading many articles in the 70's and 80's which were telling us neophytes how to train, in order to activate whichever fibres we needed for our sport. But recently, I understand the thought is that both need to be involved - in fact both are involved, whatever we do,.
I am from the school who believe that whatever your disciplibe - sprinting or steady state - your strength exercises could be the same. It's your attitude and need to succeed which makes the difference in the end.
Then again, a new and different research finding comes out everuy week. Are we allowed coffee and red wine with our dark chocolate this week:~)