Age-group water polo players were tested using the SwiMetrics, the world's most sophisticated swimming analytical tool for swimmers, water polo players and triathletes.
SwiMetrics measures and records the velocity (speed in meters per second) and force (in kilograms) at specific points in the swimming stroke. The test results are synchronized with DartFish software to superimpose velocity and force curves (60 times per second) with an underwater video of the athlete.
The vertical green line in the middle of the graph indicates the athlete's position on the video (shown below). The real-time velocity data at every point in the swimming cycle is represented by a "Velocity Curve" (the continuous white line shown below the player in the video).
The players were tested in a series of 20-yard race-pace swims including pulling with a pull buoy and sprint freestyle (both head-up and regular swimming).
In the video shown below, the player is swimming at 1.2636 meters per second at that point in her stroke.
Copyright © 2009 by Steven Munatones