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Pec deck & scapula movement

Posted: Mon Jan 21, 2008 11:58 am
by paul_k
Image

In this exercise and at the end of the squeze I can see the scapula moving away from thw spine, around the thoracik cage.
What muscle effects this particular movement of the scapula?
Is it Serratus Anterior?

Posted: Wed Jan 23, 2008 10:49 am
by paul_k
oh my . .
noone wants to answer me.

Posted: Wed Jan 23, 2008 11:17 am
by stuward
I'm no expert but I think the scapula is just moving because it's attached to the shoulder. The only muscle doing any work is the pecs. If you want to work the seratus, do these.
http://www.exrx.net/WeightExercises/Ser ... Raise.html

Posted: Mon Feb 04, 2008 8:00 pm
by shaf_43
When the shoulder is abducted and forearm is at a 90 degree angle as shown for pec major isolation the infraspinatous and teres minor (which originate at the posterior scapular surface and attach to the posterior humerus) are contracted to componsate the anterior muscle action (pecs). As the elbows move toward that midline, the infraspinatous and teres minor engage and the rhomboids relax causing the scapula to shift laterally (abduction)

Sorry if it got to wordy

Posted: Wed Mar 19, 2008 9:54 am
by paul_k
many thanks for the detailed explanation