bio lab 2 - Mrigender Virk (mvirk@ucla.edu) BioPhysics 1L...

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Mrigender Virk ( mvirk@ucla.edu ) BioPhysics 1L Lab 1B Experiment: 10-13-04 Due: 10-30-04 Static Forces and Torques on The Arm
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1/7 Summary The changing of insertion points of the bicep muscle on the arm has a considerable effect on the forces and torques. In two situations with very similar angles and measurements and with the only meaningful difference being the insertion point the force required by the bicep in the second insertion point is less than one third the force required by the bicep in the first insertion point. If an animal such as a gorilla has an insertion point 50% further from the elbow than a human the animal would be able to lift nearly twice as much weight. This difference alone isn’t the reason gorillas are so much stronger than humans because there are other factors like body proportions and plainly, the size of their muscles. Insertion points at maximum values on the arm would be impractical because there is a huge loss in flexibility and lifting at certain angles would become impossible. Insertion points are located at optimal positions for various species
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This note was uploaded on 05/02/2008 for the course LIFESCI ls 2 eng 3 taught by Professor All during the Spring '04 term at UCLA.

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bio lab 2 - Mrigender Virk (mvirk@ucla.edu) BioPhysics 1L...

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