Bit by bit increase your arms down, get an entire array of movement, and allow slightly extend at The underside. The common spinal erector exercises are deadlifts and entrance squats. You can do dumbbell Romanian deadlifts, Which should help. You may also do goblet squats. That will help, as well. https://back-exercises-with-dumbb02222.blogofchange.com/33797167/the-single-best-strategy-to-use-for-dumbbell-set-and-rack