I need to find out what stride outs are!
Stride Outs are generally 100m repeats used as a final warmup before a full track or interval workout. The idea is to accelerate for the first 80m up to 85 or 90% effort, and then taper your speed to the finish. We usually do 6 sets of these before every track workout. I know that many times I may not feel great during my regular warmup, but then once we get through strides everything feels ready to go.
Also, my coach has me doing these at the END of at least two of my easy-paced runs each week, so that I get some extra speed work in on tired legs. Since my goal in running a marathon will be to maintain my pace even when my legs are toast, adding these to the end of normal training runs helps to simulate that type of effort.