AngularKinematics (2)

AngularKinematics (2) - AngularKinematics T ime 1 K nee...

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Time 1 θ shank θ thigh θ Knee Segment Angles are ABSOLUTE ANGLES , measured with respect to a  (stationary) global vertical or horizontal reference axis.  Joint Angles are RELATIVE ANGLES , measured between two adjacent  segments with the angle’s vertex at the joint center.  Angular Kinematics
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Time 1 Time 2 ∆ θ shank = θ shank θ shank Shank segment angular velocity ( ϖ ) ϖ Shank = ∆θ θ shank - θ shank 1 time - time 1 time = Segment Angular Velocity ( ϖ )
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Calculating Segment Angular Position with segment endpoint coordinate data (x, y) (0.65, 0.90) (0.85, 0.50) (0, 0) +X +Y
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Calculating JOINT Angular Position with Segment Angular Position Data +Y (0, 0) +X
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Adjacent joint angle-angle diagrams are used to characterize joint coordination patterns θ Knee θ Hip θ Knee θ Ankle
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100 120 140 160 180 200 100 120 140 160 180 200 Knee angle (degrees) Hip angle (degrees) Similar knee-hip coordination patterns during push phase Hurdle Take-off Long jump Take-off H LJ
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This note was uploaded on 10/25/2010 for the course EXSC 408L at USC.

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AngularKinematics (2) - AngularKinematics T ime 1 K nee...

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