poriomania (pÅrâ³ Ä-Å-mÄnâ² Ä-Ä) [Gr. poreia, walking, + mania, madness]
1 Refers to the bowler's motion that ends with the start of the delivery. 2  arm-swing: The arc of the bowling arm and hand from the swing to the backswing. 3  arrows: Targeting arrows that appear on the lane 12 to 16 feet beyond the foul line. 4  Also called darts.
If youâre trying to throw the ball low, you should release the ball with your throwing hand about level with your waist. If you want to throw the ball higher, hold onto the ball longer and release it once your hand is up closer to your shoulder. How quickly you swing your arm will affect the velocity of your throw.A slower-swinging arm will result in a slower and shorter-distance throw. Swing your arm faster if you want the ball to be delivered more quickly or are looking to throw the ball farther.To throw a ball underarm as far as possible, swing your arm as fast as you can and release the ball at a 45-degree angle.nderarm Technique. To throw a ball using the underarm technique, begin by facing your target while holding the ball in your dominant hand. Shift your body weight to center over that same-side leg.