as noted, use super heavy bb shrugs as well as super heavy db shrugs.
from there, utilize tempo sets and deep eccentric stretches. i blew mine up over the years doing about 8 sets a week but as high as 12 a week. they are a stabilizing muscle so they will need to be crushed to grow, like calves but not as bad.
from there, utilize tempo sets and deep eccentric stretches. i blew mine up over the years doing about 8 sets a week but as high as 12 a week. they are a stabilizing muscle so they will need to be crushed to grow, like calves but not as bad.