It's funny how dramatic a 9% increase in pace from a leisurely 6 min/km down to 5:30min/km feels. At 10km/h it's a leisurely jog, while at 10.9km/h right now for me it feels much more like serious running (and the HR skyrockets...).
It's funny how dramatic a 9% increase in pace from a leisurely 6 min/km down to 5:30min/km feels. At 10km/h it's a leisurely jog, while at 10.9km/h right now for me it feels much more like serious running (and the HR skyrockets...).