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 * 2:00 meet life-long runner and retired professor of engineering Hans van Dijk
 * 5:00 meet (also a) lifelong runner and engineer Ron van Megen
 * 9:00 where does all that work that we do as runners go?
   * Overcoming running resistance (influenced by running efficiency)
   * Overcoming aerodynamic drag
   * Overcoming changes in elevation
 * 11:30 running efficiency / energy cost of running (ECOR)
   * Potentially large interindividual differences: up to 20%!
   * Minimized through training
 * 13:15 aerodynamic drag
   * Average runner CdA is 0.24 in free air and 0.20 while drafting
   * Eliud Kipchoge was down to 0.16 during his Breaking 2 attempt
 * 18:15 changes in elevation
   * Running efficiency improves when running uphill and worsens when running downhill
 * 20:30 factors that influence running efficiency / ECOR
   * Global, multi-year training load: more training tends to reduce ECOR
   * Experiment with: cadene, arm carriage, shoes, etc., to find minimal ECOR
   * Reduce weight 
 * 31:30 factors that affect aerodynamic drag
   * Runner speed
   * Drafting
 * 34:00 Hans and Ron’s models of run performance
 * 39:00 using the stryd power meter to calculate running efficiency

Learn more about Hans and Ron and browse their books at their website [https://hetgeheimvanhardlopen.nl/en/].

Running Power Experts Hans van Dijk and Ron van Megen

The world of endurance sport is ever changing: equipment, training techniques, nutrition and lifestyle advice. Every week, Andrew and Michael will discuss one novel component in the endurance ecosystem, or we will speak with an innovator in our field and let them tell their story.