Synchronized, high-speed digital cameras were used for underwater videotaping of swimmers, each of whom were required to perform a series of trials with both bent-arm and straight-arm pull patterns. The resulting video footage was digitized and processed using "Multi 2-D" motion capture software. Results demonstrated (1.) The advantages of using high-speed videography for quantifying swimming stroke mechanics. (2) The resulting data provided insight into the relationship between the varying degrees of elbow-bend during the pull cycle, and fluctuations in linear hip and wrist velocities.
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