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.
Exercises for Tennis. Exercises that increase your rotational power increase swing speed and enable you to blast ground strokes and serves past your opponents. Use medicine ball drills for rotational power. Most are sport-specific, mimicking movements of the tennis swing. They include overhead slams and rotational throws with a closed or open stance -- an open stance mimics the open stance used for serves and returns. Moving medicine ball catches and throws allow you to mimic forehand and backhand swing motions.