Hello Im 34 years old 6’1″ 206lbs. I’ve been running shockwave for a few months now. I have herniated discs in the “L” region of my back. My question is….when I’m supposed to do dead lifts, sumo dead lifts, or squats I tend to injure my back every time I try to increase the weight to a decent amount. Anything over 115lbs seems to be the problem area for me. The strength is their but my back will spasm and lock up putting me out for a few days. Should I continue to do these exercises with the lower weight and increase reps or should I use a lower back machine for back days and the leg press for leg days as neither of these seem to cause a problem?