BIO ENG C119 Study Guide - Contact Force, Shoulder Joint, Force Platform

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8 Jan 2019
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Answer all questions for a maximum of 100 points. Please write all answers in the space provided. If you need additional space, write on the back sides. Indicate your answer as clearly as possible for each question. Write your name at the top of each page as indicated. ___________________________________________________________________________________: biomechanical analysis of the skeleton [15 points total] The picture below (left) shows a gymnast performing the iron cross routine, in which he is suspended as shown by the ropes in each hand. Assuming that only one muscle group is dominant, and using a vector force triangle approach, estimate the magnitude of the joint contact force at the shoulder for this routine in terms of the body-weight of the gymnast. The zoomed-in view (below, right) of the boxed region is proportionally to scale. Name:_________________________________: contact stresses and design of shoulder prostheses [20 points total] State two pros and two cons of using metal-backing of plastic components in total joint replacement.