Biomechanics - Activity Analysis

-
Every morning, I start my day with a hot cup of coffee. I begin by sitting in my recliner with my coffee mug clasped in my hands about hip-level. In this position, my arm is adducted and my elbow is flexed about 90°. My wrist is slightly flexed as I grip the handle of the mug. After I bring the coffee mug to my lips, my elbow is almost fully flexed and my arm slightly abducted. Wrist remains slightly flexed throughout the movement. Elbow and wrist flexion occur in the sagittal plane about the frontal axis, while abduction of the humerus occurs in the frontal plane about the sagittal axis. The osteokinematic movement of the elbow is flexion in an open kinematic chain. In terms of arthrokinematics, the concave surface of the head of the radius rolls and glides anteriorly over the convex capitulum of the humerus to increase flexion. The prime mover for elbow flexion is the biceps brachii, which performs a concentric action.

Comments

Post a Comment

Please share your thoughts here!

Most Popular

"Man from the South" Reflection

-
After reading the chapter from "Man from the South," I was intrigued by the life of the wife of the South American man. All we know of her is divulged in a few short lines at the end of the chapter, yet the story of her life quickly becomes complex. Unfortunately, the woman cannot even take the time to wash her hair without having to fear that her husband is engaged in dangerous and costly schemes. Moreover, she has lost at least three digits having to "un-do" the bets that her husband has lost. If the soldier had lost the bet, the woman's livelihood would have become even more unstable. For example, the couple may have had to move once again to prevent the southern man's incrimination. However, I will focus on her occupation as "care taker" of her scheming husband. If the bet had ended badly, the wife would assume that she could go absolutely no where without her husband -- even to shower, to sleep, to eat, or to shop alone. One strategy that co...
Read more

"Blissful Ordinariness"

-
When describing occupational therapy to others, I always include a statement such as, "Occupational therapists help you do things that are often taken for granted-- things you don't realize you cherish until you can no longer do them." I think that the term "blissful ordinariness" relates to that same idea. The small, routine tasks we do every day string together to make us who we are. Being able to fully participate in and enjoy our ordinary, every day activities contributes to our sense of identity and purpose. Even when on a spectacular beach vacation, I almost always still long to get back to my "blissful ordinariness" by the end of the week. One of the unique traits of occupational therapy is this: the OT cares  about the client's "ordinary" life. In fact, it is the client's patterns of performance, routines, and rituals that drive and guide the intervention process. While the therapist must maintain a professional therapeutic ...
Read more

Era Presentations - A Reflection

-
One event that stood out as a turning point for the field of occupational therapy was World War II. At this time, numerous men were deployed, opening up jobs in the community for women. This also meant that more men were becoming physically injured and exposed to mental trauma. Women primarily had to step in to meet these new needs at a break-necking pace, training for only 2 weeks before being considered an occupational therapist. Hundreds of occupational therapists entered the field at this time, and they were vital to the war effort and to the stability of the nation. Throughout the era presentations, I noticed one occupation that changed drastically over time-- play. Play, an important occupation for children, took many forms over the years. In early decades, like the 1940s, boys played with war figurines and pretended to be in combat. As time went on and fathers returned from war, boys began playing with toys such as tools, cars, and balls. Beginning in the 1980s, and even today...
Read more