Increasing Bicep Size Bicep curls are effective at recruiting your biceps and thus can be used to build size, as long as they are completed at an appropriate frequency and volume.
You do not need to fully straighten your arms, relax and linger at the bottom point.
Contract your abs and keep the spine flat throughout the exercise.
Focus on doing all exercises as correctly as possible.
The tips below will help you do this.
Of course, doing curls in this style is much more difficult than without a pause.