Triathlon Wet Suit and Technical Parameters at the Start and End of a 1500-m Swim

Abstract

The aim of this study was to determine the effect of wearing a triathlon wet suit on the technical parameters of the front crawl stroke. Eight highly trained male triathletes were filmed with underwater camcorders during two 1500-m swim tests: one with a wet suit (WS) and the other with a standard suit (SS). Two conditions were considered: Condition I (CI) and Condition XV (CXV), representing the 1st and the 15th 100-m, respectively. Views were synchronized and digitized using kinematic analysis software (Schleihauf, 1994) to obtain 3-D coordinates of the anatomical landmarks of the body. Results showed that the wet suit and duration of the exercise significantly influenced stroke parameters. The swim with WS was characterized by greater stroke length and a progressive increase in stroke frequency, resulting from a more extended elbow position during the stroke and from a decrease in the absolute and relative times of the propulsive phase. These changes indicated more efficient upper limb action. The duration of exercise modified the swim with WS and SS. The loss of velocity observed in CXV was related to a decrease in stroke length, or more precisely a reduction in lever arm length during the aquatic phase, insufficiently offset by a slight increase in stroke frequency. These two motor responses, a less extended elbow position and a stroke frequency increase, emerged as an easier motor solution for coping with the effect of fatigue. This solution could be regarded as an adaptation to the duration of the exercise.

Acute effect of wearing wetsuit on 400m performance in a swimming pool and in a swimming flume

“…There were not differences in BLa either RPE with and without wetsuit in both submaximal swims. Contrary to Perrier & Monteil (2004), Hutteau et al, (2007) and the hypothesis in the study of Tomikawa at al., (2008), they didn´t find differences in SL but the SF increased with wetsuit. Those results concluded the used of wetsuit are associated with enhancement in performance.…”

“…Related to the technical variables, SF was increased with wetsuit in the swimming pool as Perrier & Monteil (2004) showed but in effort of 1500m and Chatard et al (1995) in 400m trials in triathletes. In the same distance Tomikawa & Nomura (2009) found an increase of SF with wetsuit.…”

“…A. Trappe, Pease, Trappe, Troup, & Burke, 1996). Perrier & Monteil (2004) showed differences in SF, which were increasing progressive during a 1500m swim, together with an increase in stroke length (SL) from the first 100m to the last 100m of the 1500 swim. As a result, the stroke index (SI) was significantly lower at the end of the trial.…”

“…To conclude, the wetsuit increased the buoyance, decrease frontal resistance and, as a result, swimming velocity increase due to an increase of SL in comparison with swimsuit (Chatard et al, 1995;L. Cordain & Kopriva, 1991;Parsons & Day, 1986;Perrier & Monteil, 2004;H. M. Toussaint et al, 1989).…”

O nado de atletas de águas abertas: características do desempenho e da organização temporal das braçadas

“…A prova de águas abertas foi incluída no programa da Federação Internacional KHANGURE, 2009;CASTRO, MENDES, NOBREGA, 2009;DULAC, QUIRION, DECARUFEL, LEBLANC, JOBIN, CÔTE, BRISSON, LAVOIE, DIAMOND, 1987;GERRARD, 1999;KEATINGE, KHARTCHENKO, LANDO, 2001); bem como à hipertermia (MACALUSO, BARONE, ISAACS, FARINA, MORICI, DI FELICE, 2013); controle do gasto energético (KARAMOUZIS, KARAMOUZIS, VRABAS, CHRISTOULAS, KYRIAZIS, GIANNOULIS, MANDROUKAS, 2002;ZAMPARO, BONIFAZI, FAINA, MILAN, SARDELLA, SCHENA, CAPELLI, 2005); utilização do drafting (CHATARD, WILSON, 2003;JANSSEN, WILSON, TOUSSAINT, 2009); uso de wet suit (HUE, BENAVENTE, CHOLLET, 2003;PERRIER, MONTEIL, 2004); e, método de treino (CALA, CEJUELA-ANTA, 2011;MEDEIROS, RODRIGUES, SOUZA JUNIOR, MADUREIRA, 2007;SAMIRA, 2011 (FREUDENHEIM et al, 2005).…”