I lift heavy and have noticed recently that my lower back is becoming sore, I don’t believe it is up to par on a majority of my movements. I’m contemplating buying a Roman Chair for hyper extensions so i can train my lower back and also do abs on a more regular basis.
My question is the difference between the 90’ and 45’ styles. I’ve used the 90’ only but am wondering the benefits of using the 45’. My gym has neither so i’m limited on trying them out. What is the most efficent for the best work?