Use of pressure distribution analysis to estimate fluid forces around a foot during breaststroke kicking
The aims of this study were twofold: first, use a robotic leg to investigate the reliability of estimating fluid forces acting on the foot during breaststroke kicking and second, test the utility for actual human swimmers kicking. In this study, fluid forces were estimated from the measurement of pressure distribution around a foot. In the first experiment, the reliability of the estimated measurements was evaluated in a series of experiments using a robotic leg that can reproduce breaststroke-kicking motions. The resulting estimates correlated significantly with the fluid force acting on the foot model that was measured by a load cell (r = 0.62-0.92). In the second experiment, breaststroke-kicking motions of human swimmers were analyzed using the methodology tested in the first experiment. The estimated fluid forces showed significant correlation with the velocities of the human swimmers (r = 0.87). Furthermore, this methodology can monitor intra-cycle force fluctuations. We conclude that the present methodology can be used to evaluate breaststroke-kicking motions quantitatively, thereby assisting swimmers and their coaches in better understanding of breaststroke kicking.
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© Copyright 2015 Sports Engineering. The Faculty of Health & Wellbeing, Sheffield Hallam University. All rights reserved.
|Subjects:||swimming breaststroke technique movement leg biomechanics water strength pressure measuring and information system measuring procedure technology|
|Notations:||endurance sports technical and natural sciences|
|Published in:||Sports Engineering|