Hi guys

I have been training for a few months now. Last nights sesson was a killer. With punching weights we did 5 punches to the count, we did pyramid building from 10 to 50 then back down (i.e. 10 x 5, 20 x 5, 30 x 5 etc), followed by 100 (x 5). inbetween each set, we did a quick drill. This totals nearly 2000 punches. What is gained by punching to this degree? surely 50(x5) is plenty as a warm up? I guess it is for building the muscles that we punch with, i.e biceps, triceps and back?