Preacher curls are a resistance training exercise primarily targeting the biceps brachii muscle located on the front of the upper arm. The exercise is performed using a specialized bench, often referred to as a preacher bench, which provides support for the upper arms while isolating the biceps muscle group. This isolation is achieved by restricting the ability to use momentum or assistance from other muscle groups during the movement. As an example, an individual might execute preacher curls using a barbell, dumbbells, or a cable machine, focusing on a controlled contraction and extension of the biceps to lift and lower the weight.
The significance of preacher curls lies in their ability to promote hypertrophy, or muscle growth, in the biceps. By minimizing the contribution of other muscle groups, the exercise places a greater emphasis on the biceps, leading to potentially more significant muscle development in that specific area. Furthermore, the controlled range of motion enforced by the preacher bench may reduce the risk of injury compared to free-standing bicep curl variations. This exercise has been incorporated into strength training regimens for decades, recognized for its efficacy in isolating and developing the biceps musculature.
