2. SYSTEM MODEL THEORY
• A system is any set of distinct parts that interact to form a complex
whole. In our definition system can be open or closed.
• Systems theory explains that neural control over movement cannot
be understood without a prior understanding of the systems that
move. It states that “movements are controlled neither centrally nor
peripherally, but rather are effected by interactions among multiple
systems”.
5. • Action as a constraint on movement :
Body mechanics, peripheral nervous
system, cerebellum, basal ganglia, motor
cortex, primary motor cortex etc.
• Perception as a constraint on movement :
Detection of action relevant information,
visuality, auditory, vestibular, haptic.
• Cognition constraint on movement
Attention, motivation, emotion learning,
memory.
8. CLINICAL IMPLICATIONS
• By understanding more about the various constraint in the
system model clinicians can make use of these properties in
helping patients regain motor function.
• Patient movements will be depend upon the context of
conscience at the time assessment.
9. CLINICAL IMPLICATIONS
task-relevant
constrain of the
individual
task relevant
constraints of the
environment
task parameters
always accomplish the task
sometimes accomplish the task
never accomplish the task.
