Pectoralis Major – The Chest
January 25, 2017
January 25, 2017
Muscle of the Month: The Pectoralis Major – the chest muscle
February’s muscle of the month we will be focusing on a particular chest muscle, the pectoralis major. I figured since Valentines Day is in February and we are all about love and sharing good energy I elected for us to focus on a common chest muscle that gets put to use every single day.
The pectoralis major is located at the front of the chest; it is a thick broad muscle that makes up most of the chest wall. The pectoralis major intersects at the clavicular head and sternal costal head and connects to the humerus, clavicle and the sternum. This muscle serves to flex the humerus (the bone of the upper arm) to create lateral, vertical, or rotational motion. The pectoralis major is predominantly used to control the movement of the arm and it moves from the outside to the inside in the frontal plane of the body. For instance when you’re picking up a medicine ball this is an example of the pectoralis major flexing the humerus bone. The pectoralis major also draws the humerus away from the body. An example of the pectoralis major drawing the humerus away from the body is when you’re in warrior I (virabhadrasana I) pose and you bring your arms overhead. The pectoralis major also draws the humerus in to the body, for example hugging yourself. This muscle also plays a major role in deep inhalation by pushing the ribcage out to create room for the lungs to expand.
By taking any of our classes from the Hustle Room to the Flow Room you will be engaging this particular muscle. Come see how you can strengthen your pectoralis major in one of our YAX classes and lengthen it in our Yoga 4 Athletes classes. You can book your spot here!