Are you still doing curls in the squat rack expecting your arms to balloon up to 22 inches? Did you know that your triceps are the largest and strongest muscle group in your arms?TRIceps are made up of three different subsidiary muscle groups: lateral head, medical head & long head..If you want to take your arms to the next level, it's absolutely essential that you train each of these areas with a combination of compound and isolation movements. ~ Berceste