That Triathlon Show

Evidence-based Training for Cycling and Triathlon Performance | Sebastian Sitko

Mar 12, 2026
Sebastian Sitko, sports scientist, professor, coach and author of Cycling 2.0. He discusses blending science and practice in cycling and triathlon training. Topics include periodisation and block training, ultra-endurance low-intensity strategies, why threshold work can be overrated, correct interpretation of studies, and practical testing for race-specific preparation.
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ADVICE

Choose Periodisation Based On Race Priorities

  • Prioritize objectives first and choose periodisation accordingly; no single model consistently wins.
  • For multiple important races, Sebastian prefers block periodisation with high-volume accumulation far from key events.
ADVICE

Structure Blocks By Specificity And Detraining Timing

  • Build blocks by specificity and decay rate: train non‑specific qualities early and stop long‑lasting qualities well before races.
  • Example: strength training can be accumulated early because gains persist through transformation and realization phases.
INSIGHT

Ultra Success From Vast Low‑Intensity Volume With Minimal VO2max

  • Ultra‑endurance success often comes from very large amounts of low‑intensity work plus minimal VO2max sessions.
  • Sebastian reports best results with ~98% below first threshold and a small dose of VO2max rather than threshold work.
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