Originally Posted by
B. Carfree
A lot of folks have used that as a training guideline over the years. It's usually stated as increasing one's weekly mileage by ten percent each week. The main point is to keep pressing forward, but don't do huge jumps in training early in the game. It's a good recipe for avoiding injury, partially because muscles get stronger faster than tendons and partially because as you practice you will hopefully gain improved body knowledge and make small adjustments in your technique that improve efficiency and reduce strain on the joints.
That approach seems much too conservative for cycling. Maybe it's a weight lifting thing? Anyway, there's no indication that it makes any sense for cycling. It's a odd recommend action (especially, with out any references).