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Sports Engineering

, Volume 21, Issue 4, pp 379–388 | Cite as

Quantification of improvement in triathlon swimming performance by textile speedsuits

  • Olaf UeberschärEmail author
  • Axel Schleichardt
  • Laura Buchhop
  • Ina Fichtner
  • Thomas Moeller
Original Article

Abstract

To quantify swimwear-induced differences under triathlon-specific conditions, we compare the swimming performance, the metabolic cost, and the standardised passive drag of well-trained triathletes when wearing (1) five speedsuit models by different manufacturers from 2017, (2) usual swimming trunks/swimsuits (men/women), and (3) individually preferred competition trisuits. Because of the complexity of the underlying hydrodynamic and biomechanical effects, three separate experimental stages were realized, each with 6–12 well-trained short- and middle-distance triathletes (male and female, mean age 22 ± 5 years) from the German national elite or junior elite level. All measurements were conducted on the basis of real athletes’ motion in the water to correctly account for all relevant effects, including skin and muscle vibrations. First, the athletes took part in a series of 100 m short-distance tests at maximal effort in a long-course pool to quantify swim-time differences in absolute terms. Second, the subjects completed multiple submaximal 400 m tests at 95% of their individual maximal speed in a swimming flume, with their swimwear-related differences in metabolic load being explored in terms of blood lactate and heart rate. Third, the passive drag of the triathletes was measured in the flume during a towing test under standardised conditions in velocity steps of 0.2 m/s within the triathlon-relevant range of 1.1–1.7 m/s. In all three test stages, the speedsuits exhibited performance advantages over trunks/swimsuits: in the 100 m maximal test, the mean swim time with speedsuits decreased by 0.99 ± 0.30 s (≙ − 1.5%). During the 400 m submaximal flume test, the mean heart rate showed a reduction of 7 ± 2 bpm (≙ − 4.0%), while the post-exercise blood lactate accumulation decreased by 1.0 ± 0.2 mmol/L (≙ − 26.2%). Similarly, the passive drag in the towing test was lowered by 3.2 ± 1.0 W (≙ − 6.9% as for normalised power and − 5.2% as for normalised force) for the speedsuits. Wearing speedsuits instead of usual trunks/swimsuits is shown to improve the swimming performance and to reduce the metabolic cost for well-trained triathletes under triathlon-specific test conditions. The reduction in passive drag of the passively towed athlete’s body due specific speedsuit surface textures seems to be only one reason for performance advantages: the effective reduction in muscular, soft tissue, and skin vibrations at the trunk and thighs during active propulsive motion of the swimmer seems to further contribute substantially.

Keywords

Swimsuit Swim performance Drag Flume Heart rate Blood lactate 

Notes

Acknowledgements

We thank the participating athletes for their kind commitment. We express our gratitude to the companies Filser Sport & Marketing, pricon GmbH & Co KG (Germany), Orbea s.Coop. Ltda. (Spain), sailfish GmbH (Germany) and MooveMee GmbH (Germany) for providing free sample suits for this study during the time of testing. We gratefully acknowledge technical assistance from different sections of our institute. Finally, yet importantly, we wish to thank four anonymous reviewers for helpful comments on the manuscript.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest whatsoever.

References

  1. 1.
    Garrett WE, Kirkendall DT (eds) (2000) Exercise and sport science. Lippincott Williams & Wilkins, Philadelphia, p 919Google Scholar
  2. 2.
    Chatard JC, Senegas X, Selles M, Dreanot P, Geyssant A (1995) Wet suit effect: a comparison between competitive swimmers and triathletes. Med Sci Sports Exerc 27(4):580–586CrossRefGoogle Scholar
  3. 3.
    Cohen RC, Cleary PW, Mason BR, Pease DL (2017) Forces during front crawl swimming at different stroke rates. Sports Eng 21(1):1–11Google Scholar
  4. 4.
    Hue O, Benavente H, Chollet D (2003) The effect of wet suit use by triathletes: an analysis of the different phases of arm movement. J Sports Sci 21(12):1025–1030CrossRefGoogle Scholar
  5. 5.
    Prado A, Dufek J, Navalta J, Lough N, Mercer JA (2017) First look into the influence of triathlon wetsuit on resting blood pressure and heart rate variability. Biol Sport 34(1):77–82CrossRefGoogle Scholar
  6. 6.
    Toussaint HM, Bruinink L, Coster R, de Looze M, van Rossem B, van Veenen R, de Groot G (1989) Effect of a triathlon wet suit on drag during swimming. Med Sci Sports Exerc 21(3):325–328CrossRefGoogle Scholar
  7. 7.
    Deutsche Triathlon Union e V (2017) Die Veranstaltungsordnung der Deutschen Triathlon-Union e. V. Präsidium der DTU. http://wwwdtu-infode/a/dateien/regelwerk-ordnungen/Ordnungen/SpO_%202016_V11.pdf. Accessed 2 May 2017Google Scholar
  8. 8.
    International Triathlon Union (Ed) (2016) ITU competition rules. http://www.triathlonorg/uploads/docs/itusport_competition-rules_2017.pdf. Accessed 2 May 2017
  9. 9.
    Benjanuvatra N, Dawson G, Blanksby BA, Elliott BC (2002) Comparison of buoyancy, passive and net active drag forces between Fastskin and standard swimsuits. J Sci Med Sport 5(2):115–123CrossRefGoogle Scholar
  10. 10.
    Mollendorf JC, Termin AC, Oppenheim E, Pendergast DR (2004) Effect of swim suit design on passive drag. Med Sci Sports Exerc 36(6):1029–1035CrossRefGoogle Scholar
  11. 11.
    Benjanuvatra N, Dawson G, Blanksby BA, Elliott BC (2001) Comparison of buoyancy, active and passive drag with full length and standard swimsuits. ISBS Conf Proc Arch 1:105–108Google Scholar
  12. 12.
    Chatard JC, Wilson B (2008) Effect of fastskin suits on performance, drag, and energy cost of swimming. Med Sci Sports Exerc 40(6):1149–1154CrossRefGoogle Scholar
  13. 13.
    Chollet D, Puel F, Marinho D, Ramos R, Lepretre PM, Louvet B, Komar J, Chavallard F, Vantorre J, Morio C, Seifert L, Vilas-Boas JP (2014) Evaluation of competitive jammers in expert male crawl swimmers. In: Mason B (ed) Biomechanics and medicine in swimming, vol XII. Australian Institute of Sport, Canberra, pp 95–100Google Scholar
  14. 14.
    Roberts BS, Kamel KS, Hedrick CE, McLean SP, Sharp RL (2003) Effect of a fastskin suit on submaximal freestyle swimming. Med Sci Sports Exerc 35(3):519–524CrossRefGoogle Scholar
  15. 15.
    Peeling PD, Landers G (2007) The effect of a one-piece competition speedsuit on swimming performance and thermoregulation during a swim-cycle trial in triathletes. J Sci Med Sport 10(5):327–333CrossRefGoogle Scholar
  16. 16.
    Pendergast DR, Mollendorf JC, Cuviello R, Termin AC (2006) Application of theoretical principles to swimsuit drag reduction. Sports Eng 9:65–76CrossRefGoogle Scholar
  17. 17.
    Pendergast DR, Di Prampero PE, Craig AB, Wilson DR, Rennie DW (1977) Quantitative analysis of the front crawl in men and women. J Appl Physiol 43(3):475–479CrossRefGoogle Scholar
  18. 18.
    Kastner T (2010) Ein Vergleich leistungsphysiologischer Parameter und quantitativer Bewegungsmerkmale im 50 m-Schwimmbecken und im Schwimmkanal bei Triathleten. Masterthesis, University of LeipzigGoogle Scholar
  19. 19.
    Cohen J (1988) Statistical power analysis for the behavioral sciences, 2nd edn. Lawrence Erlbaum Associates, HillsdalezbMATHGoogle Scholar
  20. 20.
    Chatard JC, Chollet D, Millet G (1998) Performance and drag during drafting swimming in highly trained triathletes. Med Sci Sports Exerc 30:1276–1280CrossRefGoogle Scholar
  21. 21.
    Ishikura K, Yoshimi J, Matsuda A, Yamashita K, Katsu M, Otsuka S, Tkakagi H (2014) Influence of a newly-developed triathlon suit on the passive drag and body position. Proc Eng 72:338–343CrossRefGoogle Scholar
  22. 22.
    Delextrat A, Tricot V, Bernard T, Vercruyssen F, Hausswirth C, Brisswalter J (2003) Drafting during swimming improves efficiency during subsequent cycling. Med Sci Sports Exerc 35(9):1612–1619CrossRefGoogle Scholar
  23. 23.
    Peeling PD, Bishop DJ, Landers GJ (2005) Effect of swimming intensity on subsequent cycling and overall triathlon performance. Br J Sports Med 39(12):960–964CrossRefGoogle Scholar

Copyright information

© International Sports Engineering Association 2018

Authors and Affiliations

  • Olaf Ueberschär
    • 1
    Email author
  • Axel Schleichardt
    • 1
  • Laura Buchhop
    • 1
  • Ina Fichtner
    • 2
  • Thomas Moeller
    • 3
  1. 1.Research Group BiomechanicsInstitute for Applied Training ScienceLeipzigGermany
  2. 2.Department MINTInstitute for Applied Training ScienceLeipzigGermany
  3. 3.German Triathlon Union, Head Coach of National Junior Elite TeamFrankfurt am MainGermany

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