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In fastpitch you can run past the base at first base without liability to be put out.
However, the other bases (2nd and 3rd) you have to stay on the base. In fastpitch, that is why runners will slide or pop-slide. A pop-slide is where you use the base to slide into and "pop" up into a standing position.
Whilst it can tweak a muscle, that is part of the rules of the game.