Execution:
1
Standing, hold a straight barbell with a supinated, shoulder-width grip.
2
Perform 7 reps from the bottom to the midpoint of the curl.
3
Then 7 reps from the midpoint to the top.
4
Finish with 7 full-range reps, without rest.
Tip: keep your elbows pinned to your sides — that's the key to staying under tension.