Electromyographic Analysis of the Swim Start - Bilateral Comparison of the Front-weighted and Rear-weighted Track Start from the OMEGA OSB11 Starting Block

Janna Brit Langholz, Gunnar Westman, Magnus Karlsteen, Christian Finnsgård


Previous swim start studies involving electromyography (EMG) consistently comprised unilateral measurements and the attachment of the swimmer via cables to a computer. Therefore the present work aims for an overall picture of the muscle activation pattern during the swim start by conducting bilateral measurements with minimal restriction of motion. On that account a multichannel surface EMG device with a wireless Bluetooth connection and videography is utilized in order to assess the nowadays most common start dive techniques of competitive swimming events - differently weighted track starts from the OMEGA OSB11 starting block. The data analysis identified that the normalized muscle activation levels were higher during the front-weighted than during the rear-weighted start - probably caused by shorter block times and less contribution of the arms. Furthermore the onset of the muscle activation seems to be different in between start dive techniques, as for instance the muscles of the rear leg commence contracting earlier while the muscles of the front leg start later in the rear-weighted compared to front-weighted starts. It is highly likely that this originates in the position of the center of mass relative to the muscles. A general overview over the coordination of the different muscles could also be obtained: It became obvious that some muscles are the main drivers of the swim start (vastus lateralis, soleus) whereas others rather exerted supportive actions (gluteus maximus, semitendinosus, erector spinae longissimus).


  1. Ali, A., Sundaraj, K., Ahmad, R.B., Ahamed, N.U., Islam, A., 2014. Recent observations in surface electromyography recording of triceps brachii muscle in patients and athletes, Applied Bionics and Biomechanics, 11, (p. 105-118).
  2. Barlow, H. et al., 2014. The effect of different kick start positions on OMEGA OSB11 blocks on free swimming time to 15 m in developmental level swimmers, HumanMovement Science, 34 (2014), (p. 178-186).
  3. Barthels, Katharine M., 2015. Biomechanical Research in Swimming: Past, Present and Future, Physical Education Department, California Polytechnic State University, https://ojs.ub.uni-konstanz.de/cpa/article/ download/906/.
  4. Bartlett, R., 2007. Introduction to Sports Biomechanics - Analysing Human Movement Patterns, Taylor & Francis e-Library, Second edition.
  5. Biel, K., Fischer, S., Kibele, A., 2010. Zur Effektivität des neuen Startblocks (OSB 11) beim Schrittstart im Schwimmen, Sportverlag Strauß (Köln): Biomechanische Leistungsdiagnostik im Schwimmen - Erfahrungen im Leistungssport und Ableitungen für die Ausbildung von Studierenden. Beiträge zum dvsSymposium Schwimmen, (p. 113-117).
  6. Bobbert, M. F., Jaspers, R. T., Sijpkens, I. W. T., 2007. Muscle activation patterns in squat jumps from different initial positions, Journal of Biomechanics, 40 (S2).
  7. Bobbert, M. F., Van Ingen Schenau, G. J., 1988. Coordination in vertical jumping, Journal of Biomechanics, 21(3), (p. 249-262).
  8. Christensen, H., 1989. EMG Analysis, IEEE Engineering in Medicine & Biology Society, 11th annual international conference, (p. 1468-1469).
  9. Clarys, J., Cabri, J., 1993. Electromyography and the study of sports movements: a review, Journal of Sports Sciences, 11, (p. 379-448).
  10. Conceição, A., Silva, A., Barbosa, T.M., Louro, H., 2013. Observation and Technical Characterization in Swimming: 200mBreaststroke, Rev. Bras.Med. Esporte, Vol. 19, No. 1.
  11. Conceição, A., Silva, A., Palma, S., Silva, H., Gamboa, H., Louro, H., 2010. Electromyography in Front Crawl Technique - Case Study, The Open Sports Sciences Journal, 3 (2010), (p. 67-69).
  12. de Jesus, K., de Jesus, K., Figueiredo, P., Goncalves, P., Pereira, S., Vilas-Boas, J. P, Fernandes, R., 2011. Electromyographic analysis of two different feet positions in back stroke start, Portuguese Journal of Sport Sciences, 11 (Suppl. 2), 2011, (p. 191-194).
  13. Ganter, N., Witte, K., Edelmann-Nusser, J., Heller, M., Schwab, K., Witte, H., 2007. Spectral parameters of surface electromyography and performance in swim bench exercises during the training of elite and junior swimmers European Journal of Sport Science, 7, 3, (p. 143-155).
  14. Halaki, M., Ginn, K., 2012. Normalization of EMG Signals: To Normalize or Not to Normalize and What to Normalize to? Computational Intelligence in Electromyography Analysis - A Perspective on Current Applications and Future Challenges, (p. 175- 194).
  15. Hamill, J., 2010. Real-TimeMeasurement using EMG andMotion Capture Systems, XXVIII International Syposiumof Biomechanics in Sports.
  16. Hohmann, A., Fehr, U., Kirsten, R., Krueger, T., 2008. Biomechanical analysis of the backstroke start technique in swimming, E-Journal Bewegung und Training, 2 (2008), (p. 28-33).
  17. Honda, K. E., Sinclair, P. J., Mason, B. R., Pease, D. L., 2010. A Biomechanical Comparison of Elite Swimmers Start Performance Using the Traditional Track Start and the New Kick Start, Biomechanics and Medicine in Swimming XI. Proceedings of the XI th International Symposium for Biomechanics and Medicine in Swimming, (p. 94-96).
  18. Kibele, A., Biel, K., Fischer, S., 2015. SWIM START STANDPOINTS ON THE OSB11 STARTING BLOCK, Institute for Sports and Sport Science, University of Kassel, Germany.
  19. Konrad P., 2005. The ABC of EMG - A Practical Introduction to Kinesiological Electromyography, Version 1.0, April 2005.
  20. Krueger, T., Wick, D., Hohmann, A., El-Baharawi, M., Koth, A., 2003. Biomechanics of the Grab and Track Start Technique, Biomechancis and Medicine in Swimmng IX, (p. 219-223).
  21. Lamontagne, M., 2000. Application of Electromyography in Movement Studies, 18 International Symposium on Biomechanics in Sports.
  22. Mason, B., Alcock, A., Fowlie, J., 2007. A kinetic analysis and recommendations for elite swimmers performing the sprint start, Proceedings of the 25th conference of the international society of biomechanics in sports (Brazi), (p. 192-195).
  23. Massó, N., Rey, F., Romero, D., Gual, G., Costa, L., Germán, A., 2010. Surface electromyography applications in the sport, ApuntsMed Esport, 45(165), (p. 121-130).
  24. Merletti, R., Parker, P., 2004. ELECTROMYOGRAPHY Physiology, Engineering, and Noninvasive Applications, JohnWiley & Sons, Inc., Hoboken, New Jersey, ISBN 0-471-67580-6.
  25. Meyland, J., Heilskov-Hansen, T,, Alkjaer, T., Koblauch Sigurd Mikkelsen, H., Wulff Svendsen, S., Frølund Thomsen, J., Hansson, G.-Å., B. Simonsen, E., 2014. Sex differences in muscular load among house painters performing identical work tasks, European Journal of Applied Physiology, 114, (p. 1901-1911).
  26. Murrell, D., Dragunas, A., 2012. A Comparison of Two Swimming Start Techniques from the Omega OSB11 Starting Block, Western Undergraduate Research Journal: Health and Natural Sciences, Volume 3.
  27. Nazário-de-Rezende, F., da Cunha Sousa, G., Haddad, E. G., de Oliveira, V. S., da Silva Medeiros, R., de Agostini, G. G., Marocolo, M., 2012. Electromyographic study of the Deltoid, PectoralisMajor and Triceps Brachii Muscles in swimmers during bilateral contractions performed in multi-joint exercise with different loads, Rev. Bras.Med. Esporte., Vol. 18, No. 2.
  28. Ozeki, K., Sakurai, S., Taguchi, M., Takise S., 2012. Kicking the back plate of the starting block improves start phase performance in competitive swimming, Proceedings of the 30th Conference of the International Society of Biomechanics in Sports, 4, (p. 373-376), Melbourne (Australia), https://ojs.ub.unikonstanz.de/cpa/article/view/5336.
  29. Slawson, S. E.; Chakravorti, N.; Conway, P. P.; Cossor, J.; West, A. A., 2012. The Effect of Knee Angle on Force Production, in Swimming Starts, using the OSB11 Block, Procedia Engineering, 34, (p. 801-806).
  30. Vilas-Boas, J. P. et al., 2003. Biomechanical analysis of ventral swimming starts: comparison of the grab start with two track-start techniques, Biomechanics and Medicine in Swimming IX. Proceedings of the IXth International Symposiumon Biomechanics and Medicine in Swimming (p. 249-253).
  31. Vint, P. F., Hinrichs, R. N., Riewald, S. A.,Mason, R. K., McLean, S. P., 2009. Effects of handle and block configuration on swim start performance, XXVII international society of biomechanics in sports conference, Limerick (Ireland), http://w4.ub.unikonstanz.de/cpa/article/view/3172/2976.
  32. Welcher, R. L., Hinrichs, R. N. and George, T. R., 2008. Front- or rear-weighted track start or grab start: which is the best for female swimmers?, Sports Biomechanics,7 (1), (p. 100-113).
  33. Yasushi Ikuta, Yuji Matsuda, Yosuke Yamada, Noriyuki Kida, Shingo Oda, Toshio Moritani, 2012. Relationship between decreased swimming velocity and muscle activity during 200-m front crawl, European Journal of Applied Physiology, 112 (2012), (p. 3417-3429).

Paper Citation

in Harvard Style

Brit Langholz J., Westman G., Karlsteen M. and Finnsgård C. (2015). Electromyographic Analysis of the Swim Start - Bilateral Comparison of the Front-weighted and Rear-weighted Track Start from the OMEGA OSB11 Starting Block . In Proceedings of the 3rd International Congress on Sport Sciences Research and Technology Support - Volume 1: WPPDSports, (icSPORTS 2015) ISBN 978-989-758-159-5, pages 310-320. DOI: 10.5220/0005714703100320

in Bibtex Style

author={Janna Brit Langholz and Gunnar Westman and Magnus Karlsteen and Christian Finnsgård},
title={Electromyographic Analysis of the Swim Start - Bilateral Comparison of the Front-weighted and Rear-weighted Track Start from the OMEGA OSB11 Starting Block},
booktitle={Proceedings of the 3rd International Congress on Sport Sciences Research and Technology Support - Volume 1: WPPDSports, (icSPORTS 2015)},

in EndNote Style

JO - Proceedings of the 3rd International Congress on Sport Sciences Research and Technology Support - Volume 1: WPPDSports, (icSPORTS 2015)
TI - Electromyographic Analysis of the Swim Start - Bilateral Comparison of the Front-weighted and Rear-weighted Track Start from the OMEGA OSB11 Starting Block
SN - 978-989-758-159-5
AU - Brit Langholz J.
AU - Westman G.
AU - Karlsteen M.
AU - Finnsgård C.
PY - 2015
SP - 310
EP - 320
DO - 10.5220/0005714703100320