In the first video bodybuilder Jonathan Irizarry measures his right arm at 18.5 inches as he begins his diet for bodybuilding competitions in the spring and summer of 2009:
In the second video Jonathan Irizarry trains biceps with preacher curls at Metroflex Gym in Arlington, Texas. The clip is an excerpt from the DVD "Guns 22 Collegiate Muscle" available at MostMuscular.Com: