PECTORALIS MAJOR

LENGTH TEST

​• ​Testing for

The length of the pectoralis major muscle.

​• ​Test positioning

The client is supine.

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​• ​Action #1

Testing Clavicular Fibers:

The client abducts shoulder to 90-degrees.

​• ​Positive finding for Clavicular Fibers:

The client's arm does not drop below the table level.

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​• ​Action #2

Testing Sternal Fibers:

The client abducts shoulder to 150-degrees.

​• ​Positive finding for Sternal Fibers:

The client's arm does not drop below the table level.

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