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Longissimus Thoracis
Region: Posterior Spine

Origin: Transverse processes of the 1st - 5th thoracic vertebrae. 

Insertion: Transverse processes of the 2nd - 6th cervical vertebrae and sometimes to the atlas transverse process.

Isolated function: 
-Assists in concentric acceleration of lateral vertebral flexion.
-Assists in concentric acceleration of vertebral column extension.
-Assists in concentric acceleration of inferior pull on ribs.

Integrated function: 
-Assists in eccentric deceleration of contralateral vertebral extension.
-Assists in eccentric deceleration of vertebral column flexion.
-Assists in eccentric deceleration of superior pull on ribs.

Nerve Supply: Dorsal rami of the spinal nerves.

 
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NASM Master trainer Eric Beard answers the question:
eric beard Q: Are you able to fit all the PES training contents within an hour timeframe?

A: There is an almost unlimited flexibility when applying the concepts and methodologies of the NASM OPT Model...
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