V̇ O2 kinetics in 200-m race-pace front crawl swimming

A. C. Sousa, P. Figueiredo, N. L. Oliveira, J. Oliveira, A. J. Silva, K. L. Keskinen, F. A. Rodríguez, L. J. MacHado, J. P. Vilas-Boas, R. J. Fernandes

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

Studies that aim to characterize oxygen uptake kinetics in efforts above maximal oxygen consumption intensity are scarce. Our aim was to analyze the oxygen kinetics in a maximal 200-m front crawl, all measurements being conducted in swimming pool conditions. 10 high-level male swimmers performed a maximal 200-m bout and oxygen uptake was directly measured through breath-by-breath gas analysis. Mean (±SD) peak oxygen uptake was 68.58 (±5.79) ml.kg1.min1, evidencing a fast component phase. As expected, peak oxygen uptake presented a direct relationship with mean swimming speed of the first 50-m lap and with the 200-m effort, and was also correlated with the amplitude of the fast component (r=0.75, r=0.72, r=0.73, p<0.05, respectively). The observed mean amplitude value was higher than those observed in the literature for other exercise intensity domains. However, the time for its onset, as well as the duration for attaining the steady state, was shorter, as the peak oxygen uptake was not correlated with these 2 components. Moreover, as previously described for swimming at high intensities, the slow component phenomenon was not observed. Aerobic metabolic pathway accounted for 78.6%, confirming the high aerobic contribution in middle distance swimming events.

Original languageEnglish
Pages (from-to)765-770
Number of pages6
JournalInternational Journal of Sports Medicine
Volume32
Issue number10
DOIs
Publication statusPublished - 2011
Externally publishedYes

Keywords

  • extreme intensity exercise
  • swimming
  • VO response

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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