1. Posture and Movement System
Margo Prim Haynes, PT, DPT, MA, PCS
Mary Rose Franjoine, PT, DPT, MS, PCS

2. Prim Haynes & Franjoine
Posture and Movement
Functional skills are controlled by two different but complementary subsystems, one for posture and one for movement.
2009
Prim Haynes & Franjoine

3. Prim Haynes & Franjoine
What is Posture? ‘
2009
Prim Haynes & Franjoine

4. Functions of Postural System
Maintain alignment of the body by overcoming the effects of gravity in all positions at all times (postural tone)
Preserving joint integrity
Maintain COM within BOS
Prepare the body for movement
2009
Prim Haynes & Franjoine

5. Prim Haynes & Franjoine
What is Movement?
2009
Prim Haynes & Franjoine

6. Function of Movement System
Provide mobility of various body segments in space.
Initiation
Continuation / (sustain)
Termination
Allows expression of well timed, coordinated, sequenced fluid movement
2009
Prim Haynes & Franjoine

7. Prim Haynes & Franjoine
To Climb
2009
Prim Haynes & Franjoine

8. Prim Haynes & Franjoine
we need both systems to work efficiently but most importantly……
……together
2009
Prim Haynes & Franjoine

9. What functions allow for each system to be unique and role specific?
2009
Prim Haynes & Franjoine

10. Prim Haynes & Franjoine
The Role of the Muscles
Postural System
Movement System
Configuration
Bi Pennate
Multi Pennate
Uni- Pennate
Penniform
Attachment
Angular
Parallel
Fiber Length
Short & Broad
Long & Slender
2009
Prim Haynes & Franjoine

11. Prim Haynes & Franjoine
Multifidus Muscle
Postural System
2009
Prim Haynes & Franjoine

12. Prim Haynes & Franjoine
Movement System
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Prim Haynes & Franjoine

13. Prim Haynes & Franjoine
Gluteus Medius
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Prim Haynes & Franjoine

14. Duel Role of Gluteus Medius
2009
Prim Haynes & Franjoine

15. The Role of the Peripheral Nervous System = Motor Units
Posture System
Unit type: S
Slow to fatigue
Contraction speed slow
Rich capillary action
Movement System
Motor unit types
FR resist fatigue
FF fatigue rapidly
2009
Prim Haynes & Franjoine

16. Prim Haynes & Franjoine
What is….
Postural Control?
Balance ?
Functional Balance?
2009
Prim Haynes & Franjoine

17. Prim Haynes & Franjoine
Postural Control
Steady State Postural Control
Maintain the COM within BOS
Sway Strategies
Dynamic Postural Control
Anticipatory:
Prepares for movement (feedforward)
Reactive
Righting & Equilibrium Reactions
Proactive
Modifies Response due to environment & Task
2009
Prim Haynes & Franjoine

18. Prim Haynes & Franjoine
Postural Control
Interaction of Multi-systems that influence the motor output
Response …..
2009
Prim Haynes & Franjoine

19. Prim Haynes & Franjoine
…Balance
Balance what we see and measure clinically
How we measure Balance?
Steady State Balance
Anticipatory Balance
Proactive Balance
Reactive Balance
2009
Prim Haynes & Franjoine

20. Functional Balance is…
Integration of the postural and movement system which allows us to freely move in space to complete our desired functional tasks with orientation of the body in space and fluid execution of the movement.
Example
Pick up object from floor
Run & Jump
Transition in and out of chair
2009
Prim Haynes & Franjoine

21. Prim Haynes & Franjoine
Picture and Video
2009
Prim Haynes & Franjoine