clarify what you learned please for the hell of it.., i put my muscle in a flexed position then just relax it and inject.. soemthing like calves u need to slightly flex if you want to poke in the right spot
I meant after a ful blown workout. The muscle is full of blood, but you are not injecting into a vein so when you asparate, there won't be a push on the plunger like when you hit a vein.