Performing the: A Step-by-Step Tutorial Barbell Seated Close-grip Concentration Curl
Grasp the barbell with a close underhand grip (palms facing toward you) and your arms fully extended.
Slowly curl the barbell up towards your chest, keeping your upper arms stationary and using your forearms to lift the weight.
Hold the curl at the top of the movement for a moment, squeezing your biceps.
Then, slowly lower the barbell back down to the starting position, fully extending your arms, and repeat the exercise for the desired number of repetitions.