i hope the training staff has the problem under control...
i have worked construction for going on 50 years, and my back was a mess through my 20's and 30's...
i had to change the way i worked (framer/ carpenter/ concrete etc) if i do a lot of bending down without bending my knees, my back will stiffen up in no time... and sciatica pain will come on... not to mention the inevitable pinched nerve..
i just deal with it, and avoid the bending over as much as possible, and i go home feeling fine...
i can't say what matthew's issue is, but i would bet his flare-up is caused by some repetitive motion he needs to curtail, if possible...
here's to a speedy recovery...
go rams
slo