I got my back squat up to 315 for sets of 5 during COVID. I hurt my neck surfing and efoiling and since then haven’t been able to back squat past 200lbs without my traps and neck muscles seizing up to thr point where I need a chiropractor. I missed squatting, so I’ve been experimenting with front squats for the past month, and so far, no stiff neck and I get to lift again. Belt is worn for the same reason you would wear one during heavy squats: support for your valsalva maneuver
