Forst I did 4 sets of normal straight bar curl with normal form.But then after I read it at gb I tried them with my elbows faar back. Wow Insta pump!Dont know if the ROM in enough though, But it did feel great.
Put your back against a wall and have you boyfriend hold his fist on your chest and bust out sum 7 sevens.
Your john hansen from opitum nutrition?
"opitum"?
awesome bro !dumbell curls will get you girls