Hello, my name is...
Hello! My name is Kylie Dunavan, and I am pursuing a Master’s Degree in occupational therapy at The University of Tennessee - Heath Science Center. Follow me as I navigate OT school and life. It is sure to be a grand adventure!
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.
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