im back doin deadlifts ron but now my problem is the lower back pump, never stopped me before but this is extremely intense, i cud only work up to my heaviest for 8 reps and stop, cudnt do 3 more sets cause it feels like the muscles either side of my spine meet at the bottom of my back and are cramping together or soemthing , i can feel my lower back throbbing, i cudnt even bend over to take the plates off, if this continues il never get my deadlift up! how many sets for back ron? i do 5 exercies, at the moment , a lat pulldown and pullups, close grip seated pulley rows and close grip bent over rows using a barbell placed inda corner of the room. 4 working sets for each exercise. male olympic gymnasts that perform on those rings, sum of those guys are absolutley massive, im presuming they too need massive dosages ? seeming as supposedly they can walk into a gym without ever having been der in there life and bench press twice their own body weight easily!