The document discusses system model theory, which explains that neural control over movement cannot be understood without considering the interacting systems that produce movement. It states that movements are controlled not by any single central or peripheral system, but through interactions among multiple systems. These systems include subsystems within the individual like the body mechanics, peripheral nervous system, cerebellum, and motor cortex. External constraints on movement include task attributes and environmental factors. The clinical implications are that understanding these various constraints can help clinicians help patients regain motor function after assessing movements in context.

1. Hey, BPEDs!
Good morning
everyone!

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”.

3. SYSTEM MODEL THEORY
(Shumwey-cook 2007)

4. ATTRIBUTES
OF THE TASK
ENVIRONMENTAL
CONSTRAINS
SUB SYSTEMS
WITHIN THE
INDIVIDUAL

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.

6. Task Classification based on
Task Attributes

7. Environmental Constraints in
Movements

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.

10. THANK YOU FOR LISTENING!