i keep reading BBs say they do chin-ups for warmup... well the average pro bodybuilder weighs around 250, is pulling up 250 of your body weight "WARM UP?"...
i can do the pull up stack for a good 10-15 reps, ( i think the machine has 20 pins), i start off with 6-7th pin for a warm up set, 12-13th pin for another warm up, and then maybe jump into the regular set.
dont get me wrong i do chins and all, but that to me is like starting off the whole stack as a warm up... comments?