I have been doing a lot of swimming lately, I really enjoy being in the water and it's an awesome cardio workout, so I was thinking, I know that they say that one way of getting a good workout on your lower abs is to do a lot of leg lifts and what not, so I was curious, if I were to put my arms up on the side of the pool with my back flat against the side and kick my legs in a circular motion (Like riding a bike), do you think the resistance of the water would be a good workout for the lower abdomen? As long as I keep it tight while doing it?