Execution:
1
Stand between the pulleys, holding one handle in each hand with a supinated grip.
2
Open your arms at shoulder height, with elbows pinned to your torso.
3
Flex the elbows, curling your hands toward your shoulders.
4
Squeeze the biceps at the top and lower under control.
Tip: think "crucifix" arms — the peak contraction here is excellent for the biceps peak.