Can Cycling Really Bulk Up the Legs?

For all my triathlete ladies concerned about the size of their legs, this is yet another example of how your aesthetic goals compete with your performance goals and therefore may not be accomplished at the same time:

From Muscle & Fitness Hers, Mar/Apr 2010:

“Finnish researchers found that…subjects who performed both cycling and resistance exercise saw a 50% greater increase in thigh muscle size compared to those that only hit weights.”

This is great news if you are trying to bring up lagging quads, but not so good for many ladies trying to balance our their upper and lower body symmetry.