Rotator Cuff Injury
The rotator cuff is a group of muscles, specifically four muscles and tendons, whose main dual functions are to connect the humerus to the scapula as well as ensure movement of the arm. These four muscles include subscapularis, supraspinatus, teres minor, and infraspinatus (AnatomyZone, 2011). One end of the muscles is attached to the scapula, while the other end is attached to the humerus. Considering the shoulder joint is like a golf ball attached to a tee, the dual function of the rotator cuff only gets complicated. The rotator cuff must ensure that the gold ball, i.e., the head of the humerus, does not fall off the tee and contracts and expands during the movements. Hire our assignment writing services in case your assignment is devastating you. We offer assignment help with high professionalism.
The arm is subject to many movements in almost all physical activities. Some of these movements can easily cause strain on the rotator cuff and lead to injury and pain. An example of such a movement is overhead activities like painting or construction. During these movements, the rotator cuff muscles and tendons are constantly rubbed against the bones, causing them to fray. This fraying then leads to rotator cuff tendonitis, which is a form of inflammation (Walstead, 2021). Subsequently, overhead movements of rotator cuff muscles and tendons tend to wear them down and could cause a tear in the muscles, which in turn causes pain when the arm moves in any direction.
Another cause of injury and pain to the rotator cuff occurs when lifting something heavy. Heavyweight puts a strain on the muscles and tendons, which could lead to tears in them. Thirdly, old age also increases the rotator cuff’s risk of pain and injury. Old age brings about slower metabolism as well as slower blood supply to muscles in the body. As such, muscles like the rotator cuff are not as strong and elastic, fast to expand and contract, and do not heal as fast (Olie et al., 2022). These conditions consequently put the rotator cuff at risk of long-term pain, even with the slightest injury.
References
AnatomyZone, (2011). Rotator Cuff Tutorial – Anatomy Tutorial. YouTube. Accessed from: https://www.youtube.com/watch?v=SfUmN_V-28w
Olie, C. S., van Zeijl, R., El Abdellaoui, S., Kolk, A., Overbeek, C., Nelissen, R. G., & Raz, V. (2022). The metabolic landscape in chronic rotator cuff tear reveals tissue‐region‐specific signatures. Journal of Cachexia, Sarcopenia and Muscle, 13(1), 532-543.
Walstead, C. (2021). Outpatient physical therapy for a patient with a rotator cuff repair.
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Question 
Week 5
Watch this video and explain how the rotator cuff is subject to injury and pain. Submit a 300 word written explanation to the instructor.
Rotator Cuff Injury
Lecture Notes:
Lecture Notes Week 5
Slide 1
Slide 2
This lesson will review all the body systems that create movement and sensations as well as bring fuel to the upper extremities. Without these systems, the body would not be able to stay alive.
The upper extremities for this lesson include the human trunk, the shoulders, the arms, and the spinal column.
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