Interesting article indeed. And great discussion, ladies.

Small bone to pick:

"Stretching the hamstring muscle, for example, teaches the muscle to relax when the knee is fully extended, Dr. Kenny said. But that is not what a runner needs. Instead, runners need to have their hamstrings stiff and activated when the knees are extended."

Hamstring flexibility can be very beneficial for CYCLISTS. At least, this is what I've read. I always stretch my hammies after a ride (and will continue to do so).