Reverse Barbell Curl
Hold the barbell such that the palms are placed shoulder-width apart, while facing you. Stand erect with the back straight. Place the elbows closer to your sides and curl the bar up towards the chest. The forearms should be at 90 degrees from the floor. Wait for a second, then slowly lower the bar back down. Perform this exercise only if you are comfortable with all the moves, or else, you will end up with muscle cramps or strain.