The Latissimus
Dorsi
The lats are a focal point in most people’s
workout regimen primarily because of the aesthetic benefits that come from
having developed lat muscles. For women, a developed lat helps with creating
the illusion of having a smaller waist. For men, it contributes to their
masculine appeal. But aesthetics aside, the lats serve multiple critical
functions to maintain a healthy musculoskeletal system, as the lats are the
only muscle that bridges the spine to the shoulder.
Because of this, the lat is the most powerful
extensor of the arm, making it the primary muscle responsible for pulling loads
closer to the body. The closer the load is to the body when deadlifting for
example, the less stress that is placed on the erectors, thus decreasing the
risk of injury, and by keeping the center of gravity above the base of support,
the ability to generate maximum force is heightened due to increased stability,
permitting the use of greater loads.
Strong lats also contribute to pressing power
because they enhance the ability to control the eccentric, which increases
stability and creates a greater platform to press off from during the
concentric.