Voluntary & involuntary movments
Voluntary: Purposeful, goal directed, learned

Learning sports skills, speech, writing,
After learning---> automatic (program-controlled movements)

Involuntary: highly stereotyped reflex, learning unnecessary

Postural & goal-directed functions


Intrapersonal: posture (standing, sitting, lying, balance) orientation in space

Extrapersonal: goal-directed

* intimate interlinkage between postural & goal-directed movements