Originally Posted by
wolfchild
Swimming isn't a weight bearing exercise and won't preserve or increase bone density...Bones need to be stressed by loading them with weight in order for them to become more dense and stronger.
So? Neither is cycling for all practical purposes. But you specifically said that swimming doesn't build muscle, which is completely wrong.
If you're going to go out of your way to make an irrelevant argument, at least know what you're talking about.