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Charnwood Dynamics Motion Analysis

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PART III - ADVANCED TOPICS

1. Using Virtual Markers

 Introduction

 Definition

 Assigning weights by model design (first category)

 Centres of mass

 Solving the localization of a known point into a rigid marker triad (second

category)

 Validity

 Having successfully defined some Virtual Markers…

2. Using Vector Angles

 Defining two vectors

 Vectors on Stick Figures

 3D Vector Angles

 2D Vector Angles

 3D angle on a stick figure view

3. Segment Rotations - The Mathematics of Euler Angles

 Background

 Eulerian System

 Choosing the Axis Sequence

 Yaw, Pitch and Roll

 Mathematical decomposition

 Neutral alignments

 Coda implementation

 Notes and References

4. Segmental Analysis - Inverse Dynamics

 Ankle Moments



Knee and Hip Moments

5. Enhancing Segment Representation

 Single marker representation

 Two-marker representation

 Three-marker (triad) representation

 Over-determination of segments using 4 or more markers



The case for pre-dynamic, or ‘static’ acquisition

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Coda AMPLIFIER 15.0 Guia do Utilizador Página 7