Kinesiology 2241A/B Lecture Notes - Lecture 23: Shift Time, Force Platform, Kinematics
7 Oct 2016
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Document Summary
Concerned with the relationship between the motion of bodies and its causes, namely forces and torques. Examples of force: buoyancy, friction, centripetal, elastic, fluid lift. Forces that are acting back onto your body from your interaction with another surface. Mathematical link between force and acceleration with the introduction of mass therefore linked to velocity & displacement too. Vector quantity has a magnitude & direction. Represented graphically by a vector: same as kinematics, each force gets a unique vector, vector composition to sum forces to find resultant (net) force. Red lights bounce off of reflective light & back into the camera anything reflective in that area is perceived as a marker. All joint centers are marked can understand how joint centers and segments are moving. People walk for long periods of time 20 30 minutes. Fatigue, activity onset pain, etc. will kick in, participant forgets they are being watched & begin to act like they do in everyday life.
