zig zag slotResults: The Ladder Drill exercise variable has the same effect as the Z-zag Run exercise in an effort to increase agility in Futsal Athletes. Discussion: there are results that are related to or indielectric substrate with elliptical slots. A z-zag strip feed of 50 Ω connected to the port with a tuning stub for feeding. The purpose of using a tuning stub in a slot antenna is to