Pacing strategy during the initial phase of the run in triathlon: influence on overall performance

Joe Friel さんのブログ記事 “Again the Pacing Thing – Fast Starts” でコメント投稿されていた、次の研究のグラフ化

Christophe Hausswirth, Yann Le Meur, Francois Bieuzen, Jeanick Brisswalter and Thierry Bernard. Pacing strategy during the initial phase of the run in triathlon: influence on overall performance.EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY Volume 108, Number 6, 1115-1123, 2010; DOI: 10.1007/s00421-009-1322-0
PUBMED: 20024576

Goals

  • determine the best pacing strategy to adopt during the initial phase of a short distance triathlon run for highly trained triathletes
  • [意訳]ショートトライアスロンのバイク終了後、ランの最初1kmをどのペースでいくと10㎞をはやく走り切れるのか?

Methods

  • Ten highly trained male triathletes
  • incremental running test to determine maximal oxygen uptake, a 10-km control run at free pace and three individual time-trial triathlons (1.5-km swimming, 40-km cycling, 10-km running) in a randomised order.
  • Swimming and cycling speeds were imposed as identical to the first triathlon performed
  • the first run kilometre was done alternatively
    • 5% faster (Tri-Run(+5%)),
    • 5% slower (Tri-Run(-5%)) and
    • 10% slower (Tri-Run(-10%)) than
    • the control run (C-Run).

Results

Tri-Run(+5%) 2,178 +/- 121 s
C-Run 2,000 +/- 72 s
Tri-Run(-5%) 2,028 +/- 78 s
Tri-Run(-10%) 2,087 +/- 88 s
  • Tri-Run(-5%) resulted in a significantly faster overall 10-km performance than Tri-Run(+5%) and Tri-Run(-10%) (p < 0.05)
  • No significant difference was observed with C-Run (p > 0.05)
  • Tri-Run(+5%) strategy elicited higher values for oxygen uptake, ventilation, heart rate and blood lactate at the end of the first kilometre than the three other conditions.

Pacing strategy during the initial phase of the run in triathlon: influence on overall performance.

Conclusion

  • The present results showed that the running speed achieved during the cycle-to-run transition is crucial for the improvement of the running phase as a whole.
  • Triathletes would benefit to automate a pace 5% slower than their 10-km control running speed as both 5% faster and 10% slower running speeds over the first kilometre involved weaker overall performances.

MEMO

  • ショートではなくミドル、ロングの場合、どう変わるのか?
  • ランではなく、スイム、バイク(non-draft race)のペースは?
  • elite に出場する若者とおっさん の違いは?
  • 男女の違いは?
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