Keeping your core tight, force via your front heel to face up straight. Continue to keep the weights near your shins as you pull up. The basic spinal erector exercises are deadlifts and front squats. You can do dumbbell Romanian deadlifts, and that can help. You may as well do https://emilioijitr.blogunteer.com/32248512/the-single-best-strategy-to-use-for-dumbbell-set-and-rack