Figure 6.1 Back muscles: trapezius, rhomboid major, latissimus
dorsi, infraspinatus, teres minor, teres major, erector spinae. Traperiul -----ďż˝
Realize, though, that a strong, muscular back isn't solely about having a wide lat spread. To possess an impressive back you need to strengthen all of the muscles that comprise the region. The trapezius muscle is an important shoulder mover and stabilizer. It contains three functional subdivisions, consisting of upper, middle, and lower components. The upper trap fibers are involved in scapular (shoulder blade) elevation and scapular upward rotation and are even involved in neck extension, lateral neck flexion, and neck rotation. The middle trap fibers produce scapular adduction as well as slight scapular elevation and scapular upward rotation. The lower trap fibers are scapular depressors and scapular upward rotators. When the upper and lower trap fibers contract together, they assist the middle fibers in