Here is info I forgot to post two weeks ago:
Two “I told you so….” in recent articles from The Journal of Strength and Conditioning:
1. Effects of Static Stretching on Energy Cost and Running Endurance Performance
Static stretching before an endurance event may lower endurance performance and increase the energy cost of running.
Abstract of the article is at
http://www.lww.com/newscenter/articledisplay/?newscenter_id=689
2. The Acute Effects of Static Stretching on the Sprint Performance of Collegiate Men in the 60- and 100-m Dash After a Dynamic Warm-Up
When sprinters do static stretches after a dynamic warm-up and before sprinting, they run slower than without static stretching.
Abstract of the article is at
http://journals.lww.com/nsca-jscr/Abstract/2010/09000/The_Acute_Effects_of_Static_Stretching_on_the.3.aspx