I do back and biceps on different days because the effort I put in on pull ups leaves my biceps dead for barebell curls / dumbbell curls etc.
Lots of articles say to do biceps twice a week.
I only directly hit biceps once a week in my routine, however, I get a great bicep workout and pump out of my pull ups when doing back. So could that justify only hitting biceps directly on friday because of the workout I give them on wednesday through my pullups?
Thread: Biceps once or twice a week?