יד קידמית עם מוט, האם האחיזה משנה?

[kapulsky]

ok just to clear things up a bit

the brachialis is the main flexor of the arm- so it allways works when u flex it!!
the biceps on the other hand is not the main flexor- doesnt allways works
if u want to involve the biceps more just look at its functions-supinate and flexes.