Originally Posted by
sonik90
Beaker, I'm just saying that I feel more of a workout on the trainer; going by the same amount of time or distance. Maybe the trainer is a more efficient way of getting into shape.
Regarding time, a trainer is going to feel harder for less power.
Regarding distance, it is not really meaningful for the aforementioned reasons. Some trainers try to approximate the resistance of riding on the road, some are way harder (more power for the same "speed") and some are way easier.