I am only a freshman, so l am not criticizing him or anything, but yesterday we did a light warmup then we did 8x200(actually more like 250 or so, as we were running them 35-38 or so) with a jog down recovery. He told us to run them at 90 percent, but not all out, and it was to work on our leg strength and speed development. We then did a cool down jog and that was the workout.What is the purpose of this workout? This is our second time doing this workout and we are increasing two each time, all the while running the same effort and it did feel easier this week. He says run them at 90%, but on the last one we can pick it up a bit.