Title: Posture and Movement System
1Posture and MovementSystem
- Margo Prim Haynes, PT, DPT, MA, PCS
- Mary Rose Franjoine, PT, DPT, MS, PCS
2Posture and Movement
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- Functional skills are controlled by two
different but complementary subsystems, one for
posture and one for movement. -
-
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3What is Posture?
4Functions 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
5What is Movement?
6Function of Movement System
- Provide mobility of various body segments in
space. - Initiation
- Continuation / (sustain)
- Termination
- Allows expression of well timed, coordinated,
sequenced fluid movement
7To Climb
8- we need both systems to work efficiently but
most importantly
together
9What functions allow for each system to be unique
and role specific?
10The 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
11Multifidus Muscle
Postural System http//en.wikipedia.org/wiki
12Movement System http//en.wikipedia.org/wiki
13Gluteus Medius
http//en.wikipedia.org/wiki
14Duel Role of Gluteus Medius
15The 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
16What is.
- Postural Control?
- Balance ?
- Functional Balance?
17Postural 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
18Postural Control
- Interaction of Multi-systems that influence the
motor output - Response ..
19Balance
- Balance what we see and measure clinically
- How we measure Balance?
- Steady State Balance
- Anticipatory Balance
- Proactive Balance
- Reactive Balance
20Functional 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
21Picture and Video