I've been having this problem for the last couple of weeks now and it doesn't seem to want to go away so I thought I drop a line to see if anyone can give me some advice.
Well the problem is that after my 3rd set of squats I get the worst lower back pain, but it's muscular pain and it runs along my spinal erectors, it aches so much that I have difficulty in standing straight and even sitting. It feels as though I have done a set of 30reps of back extensions.
I didn't do any squats yesterday to maybe try and give my lower back some rest.
My squat stance is outside shoulder width with toes pointing out slightly and my hips go right down below my knees.
One possibility could be that I have tight hamstrings or lower back and I have been trying to stretch them out alot, so it could be causing some postural problems, I'm not sure?
I was doing 400m sprints like 2 or 3 times a week prior to this problem so it could also have something to do with that, maybe it's just tired and needs a rest? Incidently I can't even run for long as my lower back really aches too.
Any help would be really appreciated...