Bigger muscles means placing them under as much tension as possible. This exercise is a unilateral move that promotes balance across your arms by isolating each bicep, and adding the preacher bench only makes it more challenging.
Cable preacher curls is one of the best isolation exercises for developing strength, size and growth stimulation in the biceps.
1. Control the weight during the set, especially on the way down.
2. Keep your wrists straight, don’t crunch.
3. Keep your upper arms fixed on the pads.
4. Don’t move your body when lifting the weights to build momentum.