Pec deck & scapula movement

Discussion of peer refereed articles and clinical applications

Moderators: Ironman, Jungledoc, darshana, stuward

Locked
paul_k
Rookie
Rookie
Posts: 47
Joined: Sat Oct 28, 2006 1:25 am

Pec deck & scapula movement

Post by paul_k » Mon Jan 21, 2008 11:58 am

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?

paul_k
Rookie
Rookie
Posts: 47
Joined: Sat Oct 28, 2006 1:25 am

Post by paul_k » Wed Jan 23, 2008 10:49 am

oh my . .
noone wants to answer me.

User avatar
stuward
moderator
moderator
Posts: 6610
Joined: Sat Mar 10, 2007 5:44 pm
Location: Halifax, NS

Post by stuward » Wed Jan 23, 2008 11:17 am

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

shaf_43
Rookie
Rookie
Posts: 24
Joined: Mon Feb 04, 2008 7:24 pm
Location: Norfolk, NE

Post by shaf_43 » Mon Feb 04, 2008 8:00 pm

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

paul_k
Rookie
Rookie
Posts: 47
Joined: Sat Oct 28, 2006 1:25 am

Post by paul_k » Wed Mar 19, 2008 9:54 am

many thanks for the detailed explanation

Locked