Some references (for previous post)
1.) Behm, D.G., Bambury, A., Cahill, F., Power, K. Effect of acute static stretching on force, balance, reaction time, and movement time. Med Sci Sports Exerc. Aug;36(8.):1397-402. 2004
2.) Yamaguchi, T., Ishii, K. Effects of static stretching for 30 seconds and dynamic stretching on leg extension power. J. Strength Cond. Res. Aug;19(3):677-83. 2005
3.) Cramer, J.T., Housh, T.J., Weir, J.P., Johnson, G.O., Coburn, J.W., Beck, T.W. The acute effects of static stretching on peak torque, mean power output, electromyography, and mechanomyography. Eur. J. Appl. Physiol.
4.) Shrier, I. Stretching before exercise does not reduce the risk of local muscle injury: A critical review of the clinical and basic science literature. Clinical J. Sports Med. 9: 221-7. 1999
5.) Bandy, W.D., and J.M. Irion. The effects of time on static stretch on the flexibility of the hamstrings muscles. Phys. Ther. 74(9):845-50. 1994
6.) Bandy, W.D., J.M. Irion, and M. Briggler. The effect of time and frequency of static stretching on flexibility of the hamstrings muscles. Phys. Ther. 77(10):1090-6. 1997
7.)Brodowicz, G.R., R. Welsh, and J Wallis. Comparison of stretching with ice, stretching with heat, or stretching alone on hamstring flexibility. J. Athl. Training. 31:324-27. 1996
8.) O'connor DM, Crowe MJ, Spinks WL. Effects of static stretching on leg power during cycling. J Sports Med Phys Fitness. 2006 Mar;46(1):52-6 Mar;93(5-4):530-9. 2005. Epub 2004 Dec 15.
.