Part 2/8:
Most people start their fitness journey doing standard bicep curls. While these may suffice for beginners, progress typically stalls after the initial phase. Regular curls predominantly engage the biceps when the arm is flexed, a position that can become repetitive due to overlapping movements from back exercises like rows and pull-ups.
Traditional curls don't fully utilize the bicep’s potential because they don’t stretch the muscle adequately. Research indicates that exercises where the arms extend behind the body can stimulate enhanced growth. A new 2025 study compared two biceps exercises—incline curls and preacher curls—and their effects on muscle growth.