Check out this instructional rowing video that demonstrates the difference between sculling and sweeping in rowing. Sweep rowing and sculling both require mastery at the competitive level. Learn facts and skills for competitive rowing in this rowing video.
This is the classic water polo body position. You are in a seated chair position, sculling your hands while eggbeater with both legs. This is the position optimal for moving to and from the ball. This is also called the center forward position in water polo.
Spidering enables you to maintain a position of power, where you can pass, shoot or move quickly. Spidering is the position where one hand is sculling, and both legs are doing eggbeaters. This is a standard water polo position for both attack and defense.