THE BASIC PRINCIPLES OF HOW TO BUILD MUSCLE IN THE UPPER BACK

Levator scapulae: Levator scapulae connects the neck on the shoulder blades, raises the shoulder blade, and extends/rotates the neck for upper back steadiness.Pro Tip: Slow down the tempo, adhere to 3 seconds of eccentric motion, and pause for two seconds at peak contraction.Furthermore, it aids in external rotation of the shoulder; boosting and �