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[Muscle Monday] 5 Reasons Why You Should Respect the Pect(oralis) Major

5/18/2020

2 Comments

 
The next few episodes of Muscle Monday will be dedicated to discussing important muscles related to Posture.  Questions about posture are probably one of the top things people ask me about on a regular basis, and the answer is not as simple as it seems.  Posture involves many components which need to work together just-so in order to create the ideal scenario for your body to function at its best.  
Today, we will be talking about the might Pectoralis Major.
Picture
Photo Credit: Kenhub.com
To say that this muscle is important would be redundant, because (almost) ALL muscles have a specific function, but this one in particular often gets a bad rep because it is associated with poor posture.  In reality, it is an extremely versatile muscle that is used in most shoulder movements.
Let's explore some fun facts about this muscle
Fact #1:  The pec major has two portions:
  • Clavicular Fibers (purple):  attach from the collar bone (clavicle) into the humerus
  • Sternal Fibers (green):  attach from the sternum (center of your chest) into the humerus. 
Picture
Fact #2:  The pec major can affect both the glenohumeral (shoulder) joint and the the scapula
Due to its attachment on the clavicle, when the two portions of the pec major work together, they can depress​ the shoulder girdle
Fact #3:  The pec major performs movements in 5 planes of shoulder motion
Because the muscle has two portions, the orientation of the muscle fibers allow it to move your shoulder in several planes of motion.  The clavicular fibers assist with shoulder flexion while the sternal fibers assist with shoulder abduction AND extension.
When the two portions work together, they will perform shoulder horizontal adduction, as well as shoulder (glenohumeral joint) internal rotation.
Fact #4:  Constantly sitting in a "slouched posture" will result in your pec major to get tight
Because it is not just due to one factor, having "bad" or "slouched" postures have a number of consequences. By slouching forward, your shoulders tend to rotate inwards, resulting in the pec major being put on slack. Over time, unless consistently stretched in the opposite direction, your body will adapt to this position, resulting in increased tension contributed by this muscle, which perpetuates the "rounded shoulders" position.
Picture
Fact #5: In order to adequately take care of your body, you must do a combination of strengthening and stretching.
It's all about balance.  First of all, try and think about what positions you are in the most frequently and take the time to stretch in the opposite directions, no matter what that may be.  Because most of us these days spend a lot of time sitting in front of a computer, on the couch or looking at our phones (or a combination of all 3?), you must make an effort to make sure that the muscle doesn't get too tight.  Conversely, if you perform a task that requires a lot of pec use - such as playing a bowed instrument (Right arm), playing tennis, etc., you may want to invest a portion of your exercise routine to working on building strength, as it is also a key player in your overall shoulder stability.  

Take some time and check out this stretch to help improve your shoulder's powerhouse.
Next week, we will be discussing the Pec Major's little brother, the Pec Minor.  You're not going to want to miss it.

​Until next time, stay happy and healthy!
2 Comments

My hand has gone numb!  What is going on?!

2/27/2020

4 Comments

 
Carpal Tunnel Syndrome (CTS) is one of the most commonly known wrist/hand injuries.  This ailment is often found in the sedentary desk job population, grocery checkout clerks, and other occupations associated with high quantities of repetitious movements -- including..... MUSICIANS.
As seen in the first image below, there are 3 major nerves that provide sensation to the hand.  They include the Median Nerve, Ulnar Nerve, and the Radial Nerve.  What is important to note, is that these nerves originate from the brain and are comprised of several cervical nerve roots in the neck before joining together to form the awesome super-highway nerves listed above.  CTS specifically describes the impingement of the Median Nerve at the level of the wrist.  ​
Picture
Photo credit: https://nervesurgery.wustl.edu
With CTS, the distribution of symptoms follows a specific pattern.  Most commonly, patients will complain of symptoms on the PALMAR aspect of their hand including the thumb, index, middle fingers as well as 1/2 of the ring finger (side closest to the middle finger).  It is very important to know this when trying to figure out which nerves may be affected, because the Ulnar and Radial Nerves will affect OTHER portions of your hand (to be discussed at a later date).

Common symptoms include:  
  • NUMBNESS
  • Tingling
  • Decreased/Altered sensation
  • Pain
  • Weakness

CTS occurs when there is too much pressure within the carpal tunnel, a VERY small space where 9 tendons and the Median nerve pass through in order to go into the hand.
Picture
Photo Credit: https://www.stepwards.com/?page_id=1595
As you can see, there is not a whole lot of space for error.  So - when we subject our bodies to high stress/repetitive activities, inflammation and swelling can occur which can cause more pressure on the nerve.  

How would you like it if someone tried to squeeze their body into an already jam-packed elevator?  You would be irritated.  That's how your nerve is probably feeling.
Picture
You:  "Ok, Janice.  I've done my research, and I think I have CTS.  What do I do?"

First of all, it is not entirely advisable that you self-diagnose your problems.  What IS advisable, is that you do your research as you have, AND consult a KNOWLEDGEABLE healthcare professional, such as a physical therapist or orthopedist.

Conservatively, there are a few things you can try to decrease your symptoms:
  • Take FREQUENT rest breaks (this should be no surprise) - taking breaks will prevent tendonitis and decrease pressure through the carpal tunnel
  • When typing/playing/performing, try to maintain a neutral wrist position
  • Perform wrist stretches - these should be performed SYMPTOM FREE and PAIN FREE
You can access a few recommended wrist stretches HERE.
​

That's all for now.  Be happy and healthy!
4 Comments

    Author

    Dr. Janice Ying is a Los Angeles-based Physical Therapist.  She is board-certified Orthopedic Physical Therapy Specialist and is regarded as a leading expert in the field of Performing Arts Medicine and the development of cutting edge injury prevention and rehabilitation programs for musicians.

    Disclaimer

    The information on this website is intended for educational purposes and should NOT be construed as medical advice.  If you have or think you have a health-related issue which needs to be addressed, please seek the help from your local licensed medical professional.

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