I would say that its the same amount of calories.... if your weight hasnt changed 
None of the variables of changed, its still the same distance, same amount of resistance... your muscular strength/endurance has just compensated to equalized the amount of work required... but the caloric burn is the same.
None of the variables of changed, its still the same distance, same amount of resistance... your muscular strength/endurance has just compensated to equalized the amount of work required... but the caloric burn is the same.
