UMass Amherst KIN 430 - BiomechLabD (4 pages)

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BiomechLabD



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BiomechLabD

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Pages:
4
School:
University of Massachusetts Amherst
Course:
Kin 430 - Biomechanics

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Biomechanics Laboratory D Angular Kinematics Introduction The purpose of this laboratory is for students to become familiar with collecting analyzing and interpreting angular kinematic data Knee joint angular data will be collected using an electro goniometer placed about the knee as subjects pedal on a Monark cycling ergometer using two different cadences The goniometer will provide information on instantaneous knee joint angles angular positions from which angular velocities and accelerations will be derived From these data knee joint kinematics between two pedaling rates will be compared and contrasted Methods Participants At each workstation a group of 3 4 students will work together to record knee joint kinematics during pedaling All of the students in a group will take turns pedaling and performing the other duties related to data collection What you need for this lab Bring a USB flash drive aka a memory stick thumb drive etc Be dressed in shorts or loose pants that can be rolled up above the knee All students will participate except in extenuating circumstance recent leg injury allergic to adhesive etc Instrumentation Electro goniometer Simply a goniometer is a device that measures angles In this lab we will use an electro goniometer to measure knee joint angles during pedaling We will only measure the knee angle in the sagittal plane flexion extension however angles can be measured in other planes if desired The goniometer contains a composite wire inside a protective spring between the two endblocks The voltage signal from the goniometer is proportional to the strain change in shape of the wire As the angle between the two ends changes the strain in the wire changes as does the output signal from the goniometer which can be equated to the joint angle Care must be taken when handling and using the electro goniometer as mishandling may result in inaccurate data reduced equipment life or equipment failure Please heed the following Never remove the goniometer



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