it’s the bicep curl and, rightly so. Not only is it incredibly effective, hitting the biceps brachii muscles (the long and short head of the biceps), to improve their roundness and strength ...
Despite the bicep not being the largest muscle in your arm (triceps take that trophy), everyone loves training them. There’s almost a 100% chance you’ve probably got some sort of curl ...
Is it possible that doing bicep curls with your left arm somehow impacts the muscles in your right arm? Let’s take a look at the research. Control group — No training. D + ND — Training both ...