Gradually extend your arms down, get a complete array of motion, and allow a bit stretch at The underside. The classic spinal erector exercises are deadlifts and entrance squats. You are able to do dumbbell Romanian deadlifts, and that may help. You can even do goblet squats. That should help, https://griffinzcaax.bloggosite.com/40155084/examine-this-report-on-dumbbell-set-and-rack