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The
latissimus dorsi, the large triangular muscles that extend from
under the shoulders down to the small of the back on both sides. These
are the largest muscles of the upper body.
Latissimus
dorsi function : Pull the shoulders downward and to the back.
The spinal
erectors, several muscles in the lower back that guard the nerve
channels and help keep the spine erect. They are also the slowest
muscles in the body to recuperate from heavy exercise.
Spinal
erectors function : Hold the spine erect.
The
trapezius, the flat, triangular muscle that extends out and down
from the neck and down between the shoulder blades, is included in the
shoulder section.
Developing a
broad, thick, and massive back is absolutely necessary in the creation
of a quality bodybuilding physique. Strong back muscles are essential
for lifting and carrying heavy weight, and a highly muscular back has
always been considered the measure of a man's strength.
When a
bodybuilding judge looks at a competitor's back, there are three things
he is especially interested in: 1) the thickness and muscularity of the
upper back; 2) the sweep and width of the lats; and 3) the definition
and development of the lower back and lower lats.
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