Hi, Been doing Bill Starr's 5x5 for a while now, only consistently for a month however. My deadlifts are terrible though - my sticking point is lifting the bar off the ground - I'm 72kg and I struggle with 80kg. When I'm lifting the bar off the ground, my back immediately rounds out. When I do partial deadlifts, however (down to just below my knees), I'm fine and can manage 120kg without problems. I'v worked very hard on my form but it hasn't seemed to help. My question is, does anyone know what muscle group would be holding me back, (if my sticking point is getting it off the floor) and what assistance exercise I could do to improve my deadlifts. Thanks NB. Deadlifts in general hurt my hamstrings due to my inflexibility -- lately I've been working very hard on improving their flexibility and my lifts have felt a bit easier.