Motion

• Motion

  • Movement that occurs when an object has changed positions In space and time due to the outside forces
• Linear motion

  • Where movement along a straight line or curved line and there is no rotation, all body parts move in the same direction and speed
  • Eg. Ice skater as they glide along the ice after completing a movement
• Curvilinear

  • Linear motion but the object move in a curved trajectory
  • E.g. A basketball being shot from the free throw line
• Rectilinear

  • Movement is linear and occurs through a straight line
  • Often represented as a whole of a certain point of the body
  • E. g. Flat basketball chest pass as the balls path is flat
• Angular motion

  • Where all the body parts of the body move through a rotational pathway, through the same angle, in the same direction at the same time
  • The rotary movement around an axis
  • Eg. When a gymnast performs a giant circle on a bar, the entire body rotates
• General motion

  • Combination of linear and angular motion
  • Human movement usually consists of general motion rather than linear or angular motion
  • Eg. A cyclist may move in a straight line as a result of the rotation of the legs about the hip joint