UMass Amherst KIN 430 - BiomechLabA (2 pages)

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BiomechLabA



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BiomechLabA

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Pages:
2
School:
University of Massachusetts Amherst
Course:
Kin 430 - Biomechanics

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Biomechanics Laboratory A Biomechanics Lab Instrumentation Introduction The ability to accurately describe human motion is an integral step in the understanding and analysis of human movement Kinematics provides us with a means of describing the displacement velocity and acceleration of an object Kinetics provides us the means of determining forces applied from the environment on the body as well as those that arise from within the body There are many methods that can be used to gather kinematic information Some of these include the use of potentiometers goniometers electromagnetic tracking and cameras systems Cameras are the most widely used because of their accuracy simplicity and versatility The cameras require the application of reflective markers onto specific landmarks on a subject The reflective markers reflect the light emitted by the cameras The reflected light is then recorded onto analog tape VHS or saved onto some digital media format PC hard drive Kinetic data are typically collected using a force transducer These can range from small specially designed devices to large general purpose force platforms that are installed in the ground Most force transducers give off an electrical signal that is proportional to the load being applied to them This signal is recorded to some form of digital media for later analysis In this lab activity you will become familiar with the equipment that is available in the UMass Amherst Biomechanics Lab for collecting kinematic and kinetic data Methods Marker Application This experiment will require subjects to have reflective markers placed on five anatomical landmarks greater trochanter lateral condyle of the knee lateral malleolus calcaneous head of the fifth metatarsal Using some adhesive the markers are stuck to the surface of the skin However this is not an ideal situation This is because the skin and any underlying tissue is able to move over the underlying bones Therefore the movement of the marker may not necessarily



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