Metabolic testing while rowing 8hrs

Our first metabolic testing involved rowing about 8 hours, inside, on an ergo, while breathing through a tube. Probably sounds like torture, which in fact, is largely true! 

What did we find out?


  • All day speed: 2:35-2:40 / 500m pace on Concept-II
  • Kcal/hr: 400-450kcal/hr
  • Fat utilization: >90% of energy
  • HR: humming bird levels


  • All day speed: 2:15-2:20 / 500m pace on Concept-II
  • Kcal/hr: 720-750kcal/hr
  • Fat utilization (%): 85-90% of energy
  • HR: 100-110bpm