- or Rotation. All parts of an object or the whole body move in a Angular Motion circle about a single axis of rotation. - A combination of translation and rotation. Most human General Motion movement falls into this category. The analysis of motion can be basically performed in three dimensions: - this analysis applies to motion of a point along a line requiring only one 1-D number to describe position, i.e. considering motion of center of mass. - it applies to motion on a plane requiring two numbers (x and y) to specify 2-D position and one number (θ) to specify orientation. - this analysis applies to motion requiring three numbers (x, y, 3-D and z coordinates) to specify position and three numbers (pitch, yaw, and roll) to describe orientation. The reference frames can be (fixed in space) or (fixed to a movable absolute relative object). To find joint and segment angles, relative reference frame is used. To be able to do the analysis of motion, there is a need of an anatomical reference which is the starting point for describing later body segment movements and position, measuring joint angles. This is usually accomplished by having the actor to erect standing, with his feet separated slightly and pointed forward, his harms hanging at the sides, and his palms facing forward.
Angular Motion - or Rotation. All parts of an object or the whole body move in a circle about a single axis of rotation. General Motion - A combination of translation and rotation. Most human movement falls into this category. The analysis of motion can be basically performed in three dimensions: 1-D - this analysis applies to motion of a point along a line requiring only one number to describe position, i.e. considering motion of center of mass. 2-D - it applies to motion on a plane requiring two numbers (x and y) to specify position and one number (θ) to specify orientation. 3-D - this analysis applies to motion requiring three numbers (x, y, and z coordinates) to specify position and three numbers (pitch, yaw, and roll) to describe orientation. The reference frames can be absolute (fixed in space) or relative (fixed to a movable object). To find joint and segment angles, relative reference frame is used. To be able to do the analysis of motion, there is a need of an anatomical reference position, which is the starting point for describing later body segment movements and measuring joint angles. This is usually accomplished by having the actor to erect standing, with his feet separated slightly and pointed forward, his harms hanging at the sides, and his palms facing forward.
DissertationFtorresV6b.docx