How to do it
- Elbows at your sides and fixed there — they are a hinge, not a lever.
- Curl up, squeeze, and lower under control for the whole range.
Common mistakes
- Swinging the bar up with the hips, which makes the number bigger and the biceps smaller.
In StackUp. Logged as weight and reps per set, and your heaviest working set decides whether the weight goes up next time. Get the app.
Arms
