The Latissimus dorsi is Latin for “broadest muscle of the back,” Latissimus meaning “broadest,” and dorsum meaning “the back.” The lats are one of the biggest muscles of the back and are responsible for scapular retraction, internal rotation of the shoulder joint, extension, adduction, and transverse extension. The lats are a large, flat triangular muscle that attaches at the spine (from mid back all the way down to hip area) and run underneath the armpit, attaching to the humerus. The lats are the biggest and most powerful muscles of the back, and the primary muscle responsible for a wide, V-shaped back. Wide-Grip Pull-Up Wide-grip pull-ups are one of the best back exercises you can do, and they hit the lats especially hard. Grip the pull-up bar with an extra wide grip and hands pronated (palms facing out). As you do your pull-up, keep your elbows flared out, so you minimize biceps involvement and maximize lat activation. As you get stronger in this movement, t...
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