Biomechanics Blog #3

-
What is the clinical relevance of the Scapulohumeral Rhythm? How can it affect your ROM measurements of the shoulder?

The Scapulohumeral Rhythm is the interaction of movement between the scapula and the humerus. It is required for full upper limb elevation. The movement is a ratio of 2:1 in the glenohumeral joint to that of the scapulothoracic joint. The humerus rotates at 120 degrees and the scapula rotates at 60 degrees giving the glenohumeral joint a full 180 degrees of motion. The movements are concurrent and allow for an increase of ROM. The movement between the two allow for good length tension relationship among the muscles acting across the shoulder to produce movement. Any interruption to this pattern could result in decrease in function and range of motion. Poor shoulder stability can also result in an impingement. For example, If the scapula doesn't move, the acromion could cause friction in the subacromial space. Arm movement is needed for various everyday activities and so understanding the movement between these two joints and how they work together will give us the tools we need to educate and help a client who may experience a decrease range of motion in the shoulder. 

Comments

Post a Comment

Popular posts from this blog

"Man From the South"

-
Consider how the daily routine and the occupations of the soldier in the story might change if he lost the bet. Also think about what the daily occupations of the wife of the man betting against the soldier might look like. In a blog post, and assuming the soldier loses the bet, identify an occupation that is likely to be impacted in either character. Why will this occupation be affected, and what is one modification (equipment and/or strategy) that might help the solider or the wife to regain independence in that particular occupation?  Although we think of the little finger as useless, it is very much needed for grip strength. An occupation that would likely be impacted by no little finger or only having one finger and a thumb would be brushing your teeth. Brushing your teeth is an activity of daily living that if not easily done could mess up your daily routine. Typically, when brushing your teeth, you perform a power grip. A power grip uses all fingers and ...
Read more

Growing Independence - Media Project

-
Image
I have gained so much from the Neuro Aspects of Occupational Performance course. It has been one of my favorite courses thus far. The media project was meaningful for many reasons. One reason I found this assignment significant was because it required me to think outside the box. It required me to be creative and unique. Secondly, it gave me the opportunity to do what an occupational therapist does. Lastly, I was able to apply what I have learned in class. I have learned that intervention is most effective through meaningful and engaging activities. After reading my client’s case study I had to use my creativity to come up with an activity that matched her values, interests so it would be meaningful to her.   Throughout this project I learned that with creativity you can turn anything into something useful and valuable. I realized that fancy equipment and expensive materials isn’t always necessary for a productive intervention. We can often find things around that house that...
Read more

Locus of Control

-
Locus of control refers to how an individual perceives what happens to them. An individual can have an internal or external locus of control. If you have an internal locus of control you take responsibility for the things that happen and focus on the things you can control rather than the things you can’t. An individual who has an external locus of control often blames uncontrollable events on others or things around them. They don’t necessarily take responsibility like individuals who have an internal locus of control. Understanding individual’s locus of control allows us to communicate and understand them more effectively.  As a future occupational therapist, it’s important to recognize our client and colleague’s locus of control in order to understand how they respond to our interactions with them. Erik Meira (2016), a physical therapist, wrote in a blog post that locus of control can even explain why some patients self-discharge after a couple visits and why some never leave...
Read more