Method
Sit on the pecdeck machine with your back firmly against the pad.
Hold the handles of the machine with upper arms parallel to the ground.
Push your arms in front of you in an arc, squeeze the chest hard for two seconds and return to starting position fully stretching the chest.
Avoid
Using too heavy weights.
Jerking or bouncing action.
Pushing with hands.
Dropping down upper arm from parallel position to the ground.
Hyperextending the shoulders at starting position.
Targeted muscles
Trains the Pectoralis Major of the chest region.
Also has some effect on the shoulders.
Who it benefits
Athletes who want maximum emphasis on the inner part of the chest.
Lean models and bodybuilders who want the chest muscles to show muscular fibres.
http://trainingmasters.wordpress.com.