Varying your hand position during this exercise, which also puts more emphasis on stability, can help promote a better all-round development of biceps. And as the cables work independently you can also correct any strength imbalance between your two biceps.

1 Stand tall with your feet a shoulder-width apart and your knees slightly flexed rather than locked, and hold the cable handles by your sides with your palms facing out in front of you.

2 Pull the cables slowly toward your shoulders as you exhale, bending at the elbows but keeping them still. Make sure that your starting body position does not change at all.

3 Pull your hands as close to your shoulders as you can without letting your elbows travel forward.

4 When the up-phase has been completed, inhale and slowly lower your hands back to the starting position.