http://news.massmediaseo.com/olympic-chiropractor-says-stop-stretching-to-minimise-sports-injuries/ Just recently released study established whether exercises can lower sports injuries as well as performed extremely detailed analysis of toughness training, flexing, proprioception (this is the body's own awareness of joint position) as well as combos of these, as well as gave different severe as well as overuse injury estimates for each.
https://www.youtube.com/watch?v=tgnbnmvbfWk
http://www.dailymotion.com/video/x31gzrv