Relação entre indicadores fisiológicos obtidos em teste ergoespirométrico em cicloergômetro de membros superiores e desempenho na canoagem

Abstract

Evaluation of aerobic fitness indicators in canoers reveals functional characteristics acquired through specific training, which can be related to competitive performance. Thus, the aim of the present study was to evaluate functional evaluators obtained in ergospirometry test of young canoers, as well as to verify the relationship of these variables with performance in 200, 500 and 1000 m distances. The sample consisted of 12 male athletes (17.6 ± 2.1 years; 175.7 ± 2.5 cm; 68.3 ± 6.3 kg) through a test in cycle ergometer of upper extremities for determination of oxygen uptake in the ventilatory threshold 1 (VT 1 -1.8 ± 0.4 L/min), in the ventilatory threshold 2 (VT 2 -2.9 ± 0.4 L/min) and VO 2 peak (3.5 ± 0.4 L/min). The test began with a 17 W load, with 17 W/min increments until voluntary exhaustion. The athletes have been also submitted to specific tests in K-1 individual canoe in a lake, with the purpose to reach the lowest times in the referred distances (times equivalent to 47.6 ± 4.3, 122.0 ± 9.0 and 239.5 ± 12.6 s, respectively). The SpearmanRank correlation test was used (rs), with significance level set at 5%. Moderate correlation was observed between VT2 and time in the 1000 m (rs = -0.685), VO 2 peak and time in the 500 m (rs = -0.699) and VO 2 peak and time in the 1000 m) rs = -0.734). Therefore, it is concluded that VT 2 and VO 2 peak obtained in cycle ergometer of upper extremities, and expressed in absolute terms, predict performance in 500 and 1000 m canoeing events and can be potentially applied in evaluation of canoers.

Análise da cinética de remoção de lactato em atletas de canoagem slalom

“…Os resultados indicaram que entre o momento pós 5' e pós 20' houve uma redução de 9,4 para 6,6 mmol, classificada como efeito moderado (-0,63). (HENSEL et al, 2008;NAKAMURA et al, 2007;MOREIRA et al, 2009;LEMOS et al, 2010) e, como são modalidades distintas, o presente estudo vem com a perspectiva de indicar os primeiros relatos da cinética de produção e remoção de lactato durante uma importante competição nacional. Priorizar o evento competitivo, no caso específico da canoagem slalom, é garantir uma análise ecológica, no sentido de refletir de fato o que ocorre com o atleta durante a situação competitiva.…”