The concentration curl is the antithesis of sloppy, rushed reps performed directly in front of the weight rack mirror.
One of your goals in the gym might be to make your muscles pop off the metaphorical page and stand out in a world of 2D physiques. To add some extra depth to your arm day to achieve that look, check ...
You've done barbell curls before, and if you've done them right, you've used little momentum and really focused in on your biceps. The cheat curl, which should be used sparingly, introduces some ...
The key to answering that question is to avoid what Samuel refers to as these three cardinal sins of training, and your arms ...