Originally Posted by
david101
So are you saying that doing something fast does necessarily burn more calories than doing the same thing slowly?
Depends what you’re doing. Running or riding up steep hills burn a fixed number of calories per distance independent of speed. Cycling on the flat or normal rolling terrain and speed makes a significant difference due to the aero losses. I can commute to work using anywhere from 600 to 800 calories even with no wind. Riding faster becomes less efficient. Going 5% faster takes roughly 15% more power.