That Triathlon Show

[Triathlon Science] Durability decoded - a 2025 perspective with Michele Zanini, PhD

10 snips
Dec 30, 2025
In this enlightening discussion, Michele Zanini, PhD, a lecturer and head of strength & conditioning for the Italian triathlon team, shares groundbreaking insights on durability in endurance sports. He explores how long runs impact running economy and presents research showing significant physiological differences after 90 versus 120 minutes of running. Michele highlights effective training interventions, including strength and plyometric methods, while addressing open questions in sports science. The episode closes with recommendations on utilizing training technologies and the latest trends influencing performance.
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INSIGHT

VO2max And Intensity Drift Rapidly

  • VO2max dropped ~3% after 90 min and ~7% after 120 min in well-trained runners.
  • Relative exercise intensity rose from ~79% to ~91%, pushing athletes toward the severe domain.
ADVICE

Add Strength And Plyometrics

  • Do include targeted strength and plyometric training in your program to improve durability.
  • Use maximal strength, single-leg work and progressive plyometrics over months to reduce neuromuscular decay.
ADVICE

Periodize Strength Over Months

  • Include multi-month strength development rather than short blocks to gain durable benefits.
  • Progress from maximal strength to power and strength-endurance across months to years.
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