MUSCLE OF THE DAY: “Pectoralis Minor”

Show Up Fitness – Where Great Trainers Are Made

Learn more about becoming a personal trainer HERE.

The pectoralis minor is a thin, triangular muscle situated at the upper part of the chest deep to the pectoralis major. Together, the pec major and minor form the anterior wall of the axilla (space below the shoulder through which vessels and nerves enter and leave the upper arm, a.k.a. armpit).

Pectoralis-minor-muscle.jpg

Origin (proximal attachment): Anterior surface of the costal cartilages of ribs 3-5.

Insertion (distal attachment): Medial border of coracoid process of scapula.

Actions: Scapula protraction, medial aka downward scapula rotation, and depression of the scapula when force is required in addition to gravity. Scapula stabilization on thoracic wall. Pec minor can also be used as an accessory muscle of respiration (when inspiration is deep and forced).

Common Injuries to the Pec Major:

Review Pec minor stretch here from our partners at The PreHab Guys.

BECOME A TRAINER AT SHOW UP FITNESS, ENROLL ONLINE TODAY!!!

If you want to become a personal trainer, Show Up Fitness has the nation's best personal training internship program that you can complete within 2-months. Whether if your NASM, NSCA, ACSM or whatever lucky certification acronym you have, our internship program is for you! Our classes are for certified personal trainers, fitness enthusiasts, and aspiring trainers who need to gain experience, learn in-depth anatomy, nutrition, sales, how to grow your social media following, and designing programming. Over 80% of trainers who get certified (usually by NASM, ACE, or ISSA), invest too much money and then quit within 12-months because they have no idea how to train and'or maintain/grow their book of business. Now that SHOW UP FITNESS is online, you can take classes at showupfitness.com , learn for 1-2 months and then SHOW UP for the in-person internship in San Diego, Los Angeles and NOW Santa Monica. We have 12-month payment plans for as little as $200/month.


Comments

Leave a Reply

Your email address will not be published. Required fields are marked *