endurance acty's and AS

[dividebyzero]

Supposing one is interested in building up muscular endurance, like for distance running. Would there be any particular types of AS that could be used for this?

Sorry if the question is kinda' vague, but I'm leaving it that way in the off chance that someone here may already be employing AS for this purpose.

[Billy_Bathgate]

prob test and eq, as eq increases RBC's