Muscle are made out of different fibers, they are all simplify to slow twitch and
fast twitch. There are more fiber to speicify, but those are the one you should know. To reach maximum level of the muslce, you have to workoout both. Heavy, low reps work out the fast twitch muscle more, high low-intensity reps, workout the slow twitch fiber more. So basically, it means change how you workout once in a while, to keep improving. Doing failure, drops set, super set, and such workout technique workout different fibers
if u know about muscle fibers how will it benifit your training?
”A man can fail many times, but he isn't a failure until he gives up.”
