485x5x1 Deadlift - Thoracic Extension Question
485x5x1 Pull - YouTube
Some background on this is that I am 17, 5'11", and 207 lbs. Yes, I am gaining weight and I plan on going up to at least 220 lbs. I have been running a Texas Method version for powerlifting for the past 14 weeks. On my deadlift I have added 5 lbs per week, every week. This is the first week I have seen my thoracic spine rounded questionably on my 5th rep. I know for certain that the first 4 reps of this set are good and that I am setting my back correctly. However, I know that some spinal flexion is acceptable in the deadlift and this is especially applicable to the final rep in a set of 5. I would like some feedback on whether the extent to which my back is rounded is acceptable. Was I just lazy in my set-up on my final rep? I appreciate your time.
Thanks,
Jack Morrison