Latissimus Dorsi

by Rickie H!

Latissimus Dorsi Side

Latissimus Dorsi Side

The lats, I know you’ve heard of them whether it be from the lat towers, wide backed bodybuilders, football stars or anyone who needs to be wide. The Latissimus Dorsi aka “lats” are the single headed, outer most muscle of the back right below and behind the armpit. It is responsible for the bulk of the width of the upper back and adduction of the shoulder, shoulder extension, scapula depression and scapular rotation.

Lats are important not only for sheer width but also for good back and shoulder strength. To train the lats you should do the following exercises: Deadlift, T-bar row, Bent over row, Chin/Pull ups, Lat pull downs, and pullovers. They play a great part in your pulling force and anything you have to pull downward from overhead. It is also very difficult to train lats without interaction from the biceps brachii and typically include deltoid work as well.

Latissimus Dorsi

Latissimus Dorsi

The lats have variables form person to person. Lats attach to the vertebra but the amount varies from person to person, some people only have 4 vertebrae with the lats attached to them while others can have as much as 8. Size also obviously varies but maybe more than just thickness. Some fibers in the Latissimus Dorsi are as short as 6 centimeters while others are as lengthy as 10 centimeters and once again it varies from person to person. Some fibers may slip and attach to other muscles such as the triceps brachii, this is especially common is apes.

I’m betting there is a procedure involving the lats you didn’t know could save your heart. If your heart isn’t producing enough output and you can’t do a heart transplant then you can have a surgery called cardiomyoplasty. This is a procedure involving the lat muscles being stretched over the heart and being electronically stimulated in sync with the hearts beat, strengthening it.

The lats are a very important muscle indeed. Constituting a large part of the back and an even larger proportion of your pulling force it’s quite obvious you’re going to need them for everyday use so get out there and hit those lats!

http://en.wikipedia.org/wiki/Latissimus_dorsi_muscle

http://www.exrx.net/Muscles/LatissimusDorsi.html

http://medical-dictionary.thefreedictionary.com/latissimus

http://www.getbodysmart.com/ap/muscularsystem/armmuscles/posteriormuscles/latissimus/tutorial.html