KIN 100 Lecture Notes - Lecture 10: Anatomical Terms Of Motion, Computer Simulation, Skatin
23 May 2016
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Document Summary
There are two main types of measurements that biomechanists use. Kinematic: concerned with the description of movement, measures of displacement, time, velocity and/or acceleration, kinetic, concerned with the forces that cause or tend to cause motion. F(n) = mass (kg) x acceleration (m/s/s) There is a push or a pull, or a combination of the two. Internal: muscular force, external, gravity, implement, etc. Definitions: scalar a quantity that is described by a number, e. g. 80 m/s (speed, vector a quantity that is described by both magnitude and direction, e. g. 80 m/s east (velocity) Equations: speed (scalar, velocity (vector, v = ave velocity, x-xo = displacement, t= time, acceleration, a = acceleration, v = velocity, t = time. High speed video: used for kinematic analysis, ball-like markers are placed at various points on the body, location of markers recorded with high-speed infrared cameras, movement of the markers is tracked to indicate movements of the person.
