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Journal of Human Kinetics

The Journal of Academy of Physical Education in Katowice

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Estimating the Trunk Transverse Surface Area to Assess Swimmer's Drag Force Based on their Competitive Level

Tiago Barbosa
  • Department of Sports Sciences, Polytechnic Institute of Bragança, Bragança, Portugal
  • Research Centre in Sport, Health and Human Development, Vila Real, Portugal
/ Jorge Morais
  • Department of Sports Sciences, Polytechnic Institute of Bragança, Bragança, Portugal
/ Mário Costa
  • Department of Sports Sciences, Polytechnic Institute of Bragança, Bragança, Portugal
  • Research Centre in Sport, Health and Human Development, Vila Real, Portugal
/ Jean Mejias
  • Department of Sports Sciences, Polytechnic Institute of Bragança, Bragança, Portugal
  • Research Centre in Sport, Health and Human Development, Vila Real, Portugal
/ Daniel Marinho
  • Department of Sports Sciences, University of Beira Interior, Covilhã, Portugal
  • Research Centre in Sport, Health and Human Development, Vila Real, Portugal
/ António Silva
  • Department of Sports Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
  • Research Centre in Sport, Health and Human Development, Vila Real, Portugal
Published Online: 2012-05-30 | DOI: https://doi.org/10.2478/v10078-012-0019-3

Estimating the Trunk Transverse Surface Area to Assess Swimmer's Drag Force Based on their Competitive Level

The aim of this study was to compute and validate trunk transverse surface area (TTSA) estimation equations to be used assessing the swimmer's drag force according to competitive level by gender. One group of 130 swimmers (54 females and 76 males) was used to compute the TTSA estimation equations and another group of 132 swimmers (56 females and 76 males) were used for its validations. Swimmers were photographed in the transverse plane from above, on land, in the upright and hydrodynamic position. The TTSA was measured from the swimmer's photo with specific software. It was also measured the height, body mass, biacromial diameter, chest sagital diameter (CSD) and the chest perimeter (CP). With the first group of swimmers it was computed the TTSA estimation equations based on stepwise multiple regression models from the selected anthropometrical variables. The TTSA prediction equations were significant and with a prediction level qualitatively considered as moderate. All equations included only the CP and the CSD in the final models. In all prediction models there were no significant differences between assessed and estimated mean TTSA. Coefficients of determination for the linear regression models between assessed and estimated TTSA were moderate and significant. More than 80% of the plots were within the 95% interval confidence for the Bland-Altman analysis in both genders. So, TTSA estimation equations that are easy to be computed by coached and researchers were developed. All equations accomplished the validation criteria adopted.

Keywords: validation; frontal surface area; drag; gender; expertise

  • Barbosa TM, Fernandes RJ, Keskinen KL, Colaço P, Cardoso C, Silva J, Vilas-Boas JP. Evaluation of the energy expenditure in competitive swimming strokes. Int J Sports Med, 2006; 27: 894-899 [Crossref] [PubMed]

  • Barbosa TM, Fernandes RJ, Morouço P, Vilas-Boas JP. Predicting the intra-cyclic variation of the velocity of the centre of mass from segmental velocities in butterfly stroke: a pilot study. J Sport Sci Med, 2008; 7: 201-209

  • Barbosa TM, Costa MJ, Marques MC, Silva AJ, Marinho DA. A model for active drag force exogenous variables in young swimmers. J Hum Sport Exerc, 2010; 5: 379-388 [Crossref]

  • Bland JM, Altman DG. Statistical method for assessing agreement between two methods of clinical measurement. The Lancet, 1986; i: 307-310

  • Caspersen C, Berthelsen PA, Eik M, Pâkozdi C, Kjendlie PL. Added mass in human swimmers: age and gender differences. J Biomech, 2010; 43: 2369-2373 [Crossref] [PubMed] [Web of Science]

  • Clarys JP. Human morphology and hydrodynamics. In: Swimming III. Eds: Terauds, J and Bedingfield, EW. Baltimore: University Park Press, 1979; 3-42

  • Hopkins WG. Bias in Bland-Altman but not regression validity analyses. Sportscience, 2004; 8: 42-46

  • Kjendlie P-L, Stallman RK. Drag characteristics of competitive swimming children and adults. J Appl Biomech, 2008; 24: 35-42 [PubMed]

  • Knechtle B, Baumann B, Knechtle P, Wirth A, Rosemann T. A Comparison of Anthropometry between Ironman Triathletes and Ultra-swimmers. J Hum Kinetics, 2010; 24: 57-64

  • Kolmogorov S, Duplishcheva O. Active drag, useful mechanical power output and hydrodynamic force in different swimming strokes at maximal velocity. J Biomech, 1992; 25: 311-318 [Crossref] [PubMed]

  • Kolmogorov S, Lyapin S, Rumyantseva O, Vilas-Boas JP. Technology for decreasing active drag at maximal swimming velocity. In: Applied Proceedings of the XVIII International Symposium on Biomechanics in Sports - Swimming. Eds: Sander, RH and Hong Y. Edinburgh: Faculty of Education of the University of Edinburgh, 2000; 39-47

  • Lee J Koh D, Ong CN. Statistical evaluation of agreement between two methods for measuring a quantitative variable. Computers Biol Med, 1989; 19: 61-70 [Crossref]

  • Marinho DA, Barbosa TM, Klendlie P-L, Vilas-Boas JP, Alves FB, Rouboa AI, Silva AJ Swimming Simulation. In: Computational Fluid Dynamics for sport simulation. Ed: Peter M. Heidelberg: Springer-Verlag, 2009; 33-61

  • Marinho DA, Barbosa TM, Mantripragada N, Vilas-Boas JP, Rouard AI, Mantha VR, Rouboa AI, Silva AJ. The gliding phase in swimming: the effect of water depth. In: Biomechanics and Medicine in Swimming XI. Eds: Kjendlie, P-L, Stallman, TK and Cabri, J. Oslo: Norwegian School of Sport Sciences, 2010a; 122-124

  • Mazza J, Ackland TR, Bach T, Cosolito P. Absolute body size. In: Kineanthropometry in Aquatic Sports. Eds: Carter, L and Ackland TR. Champaign, Illinois: Human kinetics, 1994; 15-54

  • Morais JE, Costa MJ, Mejias JE, Marinho DA, Silva AJ, Barbosa TM (2011). Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. J Hum Kinetics, 2011; 28: 5-13

  • Nicolas G, Bideau B, Colobert B, Berton E. How are Strouhal number, drag, and efficiency adjusted in high level underwater monofin-swimming? Hum Mov Sci, 2007; 26: 426-442 [PubMed] [Web of Science] [Crossref]

  • Nicolas G, Bideau B. A kinematic and dynamic comparison of surface and underwater displacement in high level monofin swimming. Hum Mov Sci, 2009; 28: 480-493 [Crossref] [PubMed] [Web of Science]

  • Ohlberger J, Staaks G, Holker F. Swimming efficiency and the influence of morphology on swimming cost in fishes. Eur J Appl Physiol, 2006; 176. 17-25

  • Silva AJ, Rouboa A, Moreira A, Reis VM, Alves F, Vilas-Boas JP, Marinho DA. Analysis of drafting effects in swimming using computational fluid dynamics. J Sport Sci Med, 2008; 7: 60.-66

  • Strzała M, Tyka A, Zychowska M, Woznicki P. Components of physical work capacity, somatic variables and technique in relation to 100 and 400m time trials in young swimmers. J Hum Kinetics, 2005; 14: 105-116

  • Strzała M, Tyka A, Krężałek P. Physical endurance and swimming technique in 400 meter front crawl race. J Hum Kinetics, 2007; 18: 73.-86

  • Ungerechts B. A comparasion of the movement of the rear part of dolphins and butterfly swimmers. In: Biomechanics and Medicine in Swimming. Eds: Hollander AP, Huijing P and de Groot G. Illinois: Human Kinetics Publishers, 1983; 215-221

  • Westgard JO. Basic method validation. Madison, Wisconsin: Westgard QC, 2008

  • Zamparo P, Gatta G, Pendergast D, Capelli C. Active and passive drag: the role of trunk incline. Eur J Appl Physiol, 2009; 106: 195-205 [Crossref] [Web of Science] [PubMed]

About the article


Published Online: 2012-05-30

Published in Print: 2012-05-01


Citation Information: Journal of Human Kinetics, ISSN (Online) 1899-7562, ISSN (Print) 1640-5544, DOI: https://doi.org/10.2478/v10078-012-0019-3. Export Citation

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