Posts Tagged ‘rock climbing’

Muscle of the Month (November): Pectoralis Major

Posted on December 8th, 2006, by relax

The pectoralis major or ‘pecs’ is a large, flat, square muscle on each side of the upper chest, tapering toward the upper shoulder.  The clavicular, or upper fibers of the pectoralis major are effective in flexing the shoulder joint, while the sternal/abdominal fibers extend the flexed joint.  Both serve as powerful lifters and are important in the [...]

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Muscle of the Month (June): Trapezius

Posted on June 22nd, 2006, by relax

The trapezius is one of a pair of muscles, which, when combined, form the trapezium.  The trapezius is a large, flat muscle, which begins at the base of the skull, running down the length of the spin to the lower back.  It also attaches to the back of the shoulder, forming a large triangle.  The [...]

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