Brace your core, then pull the dumbbell towards your rib cage, squeezing your shoulder blades collectively. The classic spinal erector exercises are deadlifts and entrance squats. You are able to do dumbbell Romanian deadlifts, and that will help. You may as well do goblet squats. That can help, much too. https://hammer-strength-dumbbell59222.blogthisbiz.com/36964883/rumored-buzz-on-dumbbell-set-and-rack