Motion:
Motion is divided into 3 main categories.
Linear Motion - when a body part moves in a straight line or curved line, with all its part moving the same distance, in the same direction and at the same speed.
Eg. Skeleton bob event.
Angular Motion - When a body or part of a body moves in a circle or part of a circle about a particular point called the axis of rotation.
Eg. Front crawl in swimmming.
General Motion - A combination of linear & angular motion.
Eg. Javelin throw.
- during the approach the javelin & torso of the athlete are showing linear motion by moving in a straight line.
- the arms & legs of the athlete are showing an angular motion as the non-throwing arm rotates around part of a circle about the shoulder joint, the upper legs about the hip joints, lower legs about the knee & feet about the ankle.
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