Patterns of Flow Pressure Due to Hand-water-interaction of Skilled Breaststroke Swimmers – A Preliminary Study

Ungerechts B, Cesarini D, Hamann M, Ritter Y, Weidner S, Haldorn T, Hermann T (2016)
Procedia Engineering 147: 330-335.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
Self-induced aquatic propulsion is an effect of interaction of the limbs and water mass (LWI) which change the energy-density per volume and the momentum of water mass, simultaneously. The change of volumetric energy-density of water can be measured via pressure tap probes detecting static pressure of unsteady flow via pressure sensors. The data of elite breaststroke swimmers wearing gloves with pressure taps on both sides of the hands were presented as pressure difference per hand (p-diff) in real-time in a split screen video together with the hand action. The purpose of this preliminary study was to check a) the stability of the setup including the data collection under pool condition with various swimmers and b) to answer coaches’ questions concerning the relation of peak pdiff-data and hand action. Among others it is shown that p-diff(max) coincides with a) deepest hand penetration at the end of the inward sweep of the hands and b) max body acceleration during hand action, shortly before max body velocity occurs.
Erscheinungsjahr
Zeitschriftentitel
Procedia Engineering
Band
147
Seite
330-335
Konferenz
ISEA 2016 (International Sports Engineering Association)
Konferenzort
Delft, NL
Konferenzdatum
2016-07-11 – 2016-07-14
ISSN
PUB-ID

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Ungerechts B, Cesarini D, Hamann M, et al. Patterns of Flow Pressure Due to Hand-water-interaction of Skilled Breaststroke Swimmers – A Preliminary Study. Procedia Engineering. 2016;147:330-335.
Ungerechts, B., Cesarini, D., Hamann, M., Ritter, Y., Weidner, S., Haldorn, T., & Hermann, T. (2016). Patterns of Flow Pressure Due to Hand-water-interaction of Skilled Breaststroke Swimmers – A Preliminary Study. Procedia Engineering, 147, 330-335. doi:10.1016/j.proeng.2016.06.303
Ungerechts, B., Cesarini, D., Hamann, M., Ritter, Y., Weidner, S., Haldorn, T., and Hermann, T. (2016). Patterns of Flow Pressure Due to Hand-water-interaction of Skilled Breaststroke Swimmers – A Preliminary Study. Procedia Engineering 147, 330-335.
Ungerechts, B., et al., 2016. Patterns of Flow Pressure Due to Hand-water-interaction of Skilled Breaststroke Swimmers – A Preliminary Study. Procedia Engineering, 147, p 330-335.
B. Ungerechts, et al., “Patterns of Flow Pressure Due to Hand-water-interaction of Skilled Breaststroke Swimmers – A Preliminary Study”, Procedia Engineering, vol. 147, 2016, pp. 330-335.
Ungerechts, B., Cesarini, D., Hamann, M., Ritter, Y., Weidner, S., Haldorn, T., Hermann, T.: Patterns of Flow Pressure Due to Hand-water-interaction of Skilled Breaststroke Swimmers – A Preliminary Study. Procedia Engineering. 147, 330-335 (2016).
Ungerechts, Bodo, Cesarini, Daniel, Hamann, Maria, Ritter, Yvonne, Weidner, Sven, Haldorn, Tim, and Hermann, Thomas. “Patterns of Flow Pressure Due to Hand-water-interaction of Skilled Breaststroke Swimmers – A Preliminary Study”. Procedia Engineering 147 (2016): 330-335.
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