In reply to Dave Garnett:
Hey, sorry didn't include the references. My evidence comes from personal reading. That I will try and update on here.
Particularly the 100 moves case is based upon several studies. Two key sources were the book 'one move too many' which I would highly recommend and the second is a study on the bio mechanical properties of crimping (link below to abstract).
I am suggesting muscle and tendon damage is the problem. But for climbers it is primarily the tendons. This is mostly due to the rate of tissue adaptation. Muscles can adapt to exercise within 3 weeks, however tendons can take years. If your tendons are not warmed up research suggests more damage (micro tears) can be caused. This will create inflammation in the damaged area which puts pressure on surrounding pain receptors causing tendinitis. If you do not rest properly, this will happen more quickly and easily each session. Warming up will help prevent this in the first place.
http://www.sciencedirect.com/science/article/pii/S0021929000001846
With regards to static stretching that seems to be the hot topic. There is evidence for and against. My personal view on the topic is from a gymnastics background were mobility exercises were used in the warm up, these consist of dynamic movements throughout a normal joint and muscle range whilst static stretching is for after exercise to develop or maintain flexibility. The old saying of warm up to stretch don't stretch to warm up.
So I targeted the evidence supporting mobility exercises which is not stretching, it targets joints not muscles. There is a lot of evidence for this which I have taken from gym instructor training and a sports science background.
This is just my point of view and I do believe an individual approach is always the most important as you can find evidence to back most things up. I have just taken on board what research I find most compelling.
Rant over.
Thanks for the response!!!