I’ve been nagging with some lower back issue, which mostly flares up during squats. I had a herniated a disc (with sciatica) a couple of years ago, but managed to get back to my pre-injury levels with good rehab and some form corrections. Having said that, this means there is a slight back pain history.
The part I wanted to highlight was that low bar seems much better on my lower back than highbar, which seems counterintuitive. The pain I get is also very specific, I do get a sharp-ish pain directly after re-racking the weight (not during the actual squat). It seems that the pain is triggered when releasing the load from the spine. It only last a second or so and then it seems fine. The pain is less when I take the weight off my back very slowly, i.e. the bar is racked, but I slowly release the weight off my back. The pain seems to be on my left SI area, but it could also be where my herniated disc was (which bulged out the left side as well).
A belt helps, but I think it mostly masks the pain. Similar (but to a much lesser extent) for deadlifts, Sumo seems more stressful on the lower back than conventional despite the much more upright torso.
I had an almost 3 week break from heavy lifting over the holiday period, but the issue remains the same.
Other than that, there is absolutely no impact/pain in any other movements or activities, also outside the gym. There is also no sciatica or any hints of it.
I was wondering if anyone had similar pain patterns, especially the sharp(ish) pain just AFTER deloading the spine.