Kinesiology 2241A/B Study Guide - Midterm Guide: Flutter Kick, Parasitic Drag, Butterfly Stroke
17 Jan 2018
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An arm pulls backwards whereas the fluid drag pushes forwards on the arm. The faster the arm movement / larger arm area, the greater the forward drag force (faster. This occurs because when you pull through the water, a high-pressure system is built. Propulsive drag: a drag force that works in the opposite direction of an arm pulling through the water movement) behind the hand, whereas a low-pressure zone is built in front of the hand pushes you forwards (pg. Propulsive lift: lift is always perpendicular to the direction that the segment is moving. * lift and drag are always perpendicular to each other. * the combination of lift and drag fix" the hand in the water (preventing deviation / slipping through the water) * a beginner swimmer pulls in a straight line while a skilled swimmer pulls both laterally and vertically. Ex: while treading water position your hands at an angle of attack.
