There are various drugs and procedures in clinical trials on humans to enable myostatin inhibition to boost muscles against muscle wasting diseases
Boosting follistatin seems to be the more promising way to inhibit myostatin for effective muscle boosting effects
Myostatin inhibition can be four times more effective at boosting muscles than high doses of steroids
There has been myostatin inhibition success in trials on monkeys
Giuliano Stroe, Romanian Boy With Natural Myostatin Inhibition
He breaks the world record for air pushups.
Giuliano performing the human flag stunt
SuperCows- Belgian Blues- Myostatin Inhibited based on 100 Years of Selective Breeding