does anyone here do sprints to promote leg growth

[PerfectTemple]

i have a friend who runs runs marathons and nbikes alot, and have been running sprints with him. I have heard from numerous people that this will help promote leg growth. what can someone tell me

 

[GenetiKing]

I've read sprints are good for GH release but I've never done them myself.

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Serge Nubret, "I look like I can take you."

Arnold, "Keep looking."