Performing the: A Step-by-Step Tutorial Barbell Bench Press with 3 board
Hold the barbell with your hands slightly wider than shoulder-width apart, and lift it from the rack or have a spotter help you, positioning the bar directly above your chest.
Place a 3-board (a piece of equipment that is about 3 inches thick) on your chest to limit the range of motion.
Lower the barbell slowly until it lightly touches the board on your chest, ensuring that you maintain control of the barbell at all times.
Push the barbell back up to the starting position, fully extending your arms but not locking your elbows, then repeat the movement for your desired number of repetitions.