^cosigned
I tweaked my back twice a couple years ago from deadlifting: once was heavy weight with poor form pulling my lower back muscles, and the other time was submaximal with no warmup and my tight posterior chain was slacking in the lift (I sit at a desk a lot and drive a lot for work so need adequate warmup bermfor every DL and squat workout to loosen up my hams, hips, and glutes)
I tweaked my back twice a couple years ago from deadlifting: once was heavy weight with poor form pulling my lower back muscles, and the other time was submaximal with no warmup and my tight posterior chain was slacking in the lift (I sit at a desk a lot and drive a lot for work so need adequate warmup bermfor every DL and squat workout to loosen up my hams, hips, and glutes)