Flexing in the lumbar region is bad news. Do you have difficulty activating those muscles? Also, when touching your toes are you extensively extending your lower back? This is the kind of thing that a belt will only partially deal with.
Been there and done that, still doing a lot.
Hell before I started training I couldn't even get near toucing my toes.
Now it's not problem and I have no problem there with my back, just hamstrings as it should.
Can't say I have any diffculty actvating the muscle anymore, I can tense them just thinking of it; and that really helps for the squats.
Only reason I'm thinking of the belt is to help support the spine when squating. Given that my backs looks far far better then it use to thanks to my training.
On another note.
FF can you please add a 80kg push press for me.
I did them today like the in video i posted earlier, wish I had a rack though, so I can just get under it and walk out the bar.
Oh well cleaning it all is just more training
Tried a 90kg clean then push press, but just couldn't drive it up all the way.
Still a nice increase over my old 67.5kg one