Isometric Work Is a Primary Function of the Muscle

The value in isometrics is that, if you only can lack, your muscles are supposed to do everything. Their job is to stabilize the spine, whichwoud be like carrying a load in front of you for ous. For people that get really thick erectis, they're not doing thousands of back extensions but symmetrically loading bar bells on their backs. They're doing deadlyif they're doing rows, eyre doing loads of heavy loaded movements. That's why their erectors grow.