EXCI 351 Chapter Notes - Chapter 3: Quadriceps Femoris Muscle, Polar Coordinate System, Vector Calculus
18 Sep 2016
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Composite approach: views the whole body as a system that progress through stages or phases as it refines movement patterns. Component approach: use the same phase/stage method, but rather than looking at the whole body as a global system, it breaks it down into component sections, with each section progressing through more refined steps toward mature movement patterns. Direction: sense or way in which a force is applied, represented by the tip of a vector. Orientation: the alignment or inclination of the vector in relation to the cardinal directions. Point of application: the point or location at which a system receives an applied force; usually defined by the tail of the vector. Line of action: an imaginary line extending infinitely along a vector through both the tip and tail, representing the path along which the vector would travel if moved forward or backward. Plane polar coordinates: coordinates (r,angle) representing the location of a point within a polar coordinate system.
